Recent Comet Brightness Estimates

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3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.83, 18.6, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.83, 19.7, 0.24' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
mar 21.81, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.83, 18.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.91, 16.8, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 91 deg);
    13.77, 18.0, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD; 1' tail in p.a. 88 deg);
    12.95, 18.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.88, 17.0, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    12.55, 16.5, 0.2' (T. Yusa, 0.05-m Refractor + CCD);
    11.82, 16.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.81, 18.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.81, 17.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.44, 16.8, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 1.6' tail in p.a. 93 deg);
    10.83, 18.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.83, 16.4, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.82, 17.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.86, 15.6, 1.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.8' tail in p.a. 96 deg);
    09.82, 16.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.81, 17.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.81, 17.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.94, 17.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.80, 18.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.80, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.79, 17.6, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

10P/Tempel 2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.11, 15.3, 1.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    24.10, 18.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.76, 17.7, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.76, 17.9, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.14, 19.7, 1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.76, 17.9, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.13, 17.5, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    17.76, 17.7, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.76, 18.3, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.83, 18.2, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);

24P/Schaumasse
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 05.18, 14.5, 0.35' (R. Arnold, Trevinca, Spain, 0.3-m Newtonian + CCD);
    05.16, 13.5, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    03.99, 14.4, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD);
    01.92, 12.7, 1.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    01.19, 12.0, 1.5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 0.7' tail in p.a. 279 deg);
mar 31.19, 12.1, 2.2' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    30.20, 11.8, 1.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    29.19, 10.9, 3.7' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 4' tail in p.a. 289 deg);
    29.14, 13.1, 1' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    29.06, 11.8, 2.82' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    28.91, 13.5, 0.7' (T. Thaluang, MPC-O58, 0.26-m Newtonian + CCD);
    28.64, 12.5, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    28.13, 13.0, 0.9' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    27.97, 14.0, 0.37' (S. Shurpakov, 0.41-m Newtonian + CCD);
    27.66, 12.4, 2.1' (T. Yusa, 0.05-m Refractor + CCD);
    27.16, 12.5, 2' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    27.00, 12.1, 2.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    25.00, 11.4, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    24.80, 13.0, 1.9' (O. Miyazaki, 0.32-m Newtonian);
    24.73, 12.2, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.72, 12.2, 2.3' (T. Yusa, 0.05-m Refractor + CCD);
    24.07, 10.6, 14' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.3' tail in p.a. 284 deg);
    24.06, 10.7, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 282 deg);
    24.06, 11.5, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 285 deg);
    23.74, 12.3, 2.9' (T. Yusa, 0.05-m Refractor + CCD);
    23.73, 11.2, 2.8' (K. Harikae, 0.15-m Newtonian + CCD);
    23.28, 12.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.13, 11.2, 11' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.13, 10.8, 11' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.12, 11.9, 1.9' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    23.05, 12.2, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.97, 10.4, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 285 deg);
    22.97, 9.9, 17.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 283 deg);
    22.96, 11.2, 5.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3.4' tail in p.a. 287 deg);
    22.96, 10.6, 13' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 286 deg);
    22.94, 11.6, 2.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    22.93, 13.2, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.72, 12.2, 2.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    22.68, 11.4, 5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.18, 11.2, 3.6' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    22.12, 11.5, 2.5' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    22.08, 13.9, 0.73' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    21.98, 10.9, 9.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.5' tail in p.a. 278 deg);
    21.96, 11.1, 4.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    21.96, 11.2, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.92, 13.6, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.77, 11.6, 2.8' (K. Harikae, 0.15-m Newtonian + CCD);
    21.74, 12.1, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    21.74, 12.0, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.73, 11.2, 5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.1' tail in p.a. 287 deg);
    20.95, 12.6, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.80, 12.1, 1.9' (O. Miyazaki, 0.32-m Newtonian);
    20.69, 11.3, 5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.6' tail in p.a. 283 deg);
    20.63, 11.5, 1.8' (Y. Nagai, 0.05-m Refractor + CCD);
    20.03, 11.8, 3.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    20.01, 11.8, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    19.97, 13.0, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.58, 10.5, 3.9' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 7.2' tail in p.a. 288 deg);
    19.34, 12.5, 2.1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    19.12, 11.6, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 5.5' tail in p.a. 286 deg);
    18.98, 10.3, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.98, 10.4, 15' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 288 deg);
    18.97, 10.8, 13.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 290 deg);
    18.95, 13.4, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.92, 11.7, 1.2' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    18.74, 11.7, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    18.70, 11.4, 5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.1' tail in p.a. 285 deg);
    18.23, 11.2, 2' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD);
    18.12, 11.7, 2' (W. Kutschera, 0.508-m Newtonian);
    18.11, 11.2, 4.51' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    18.07, 10.3, 19' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.18° tail in p.a. 285 deg);
    18.04, 11.9, 3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    18.02, 11.9, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    17.75, 11.3, 4.2' (T. Yusa, 0.05-m Refractor + CCD);
    17.73, 11.8, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.70, 11.2, 6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.6' tail in p.a. 283 deg);
    16.95, 10.8, 3.9' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    16.73, 11.8, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.70, 11.0, 7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.7' tail in p.a. 284 deg);
    16.28, 11.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    16.25, 11.3, 7.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 6.2' tail in p.a. 295 deg);
    16.25, 9.8, 16.1' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    16.21, 12.5, 1.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.92, 11.4, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    15.76, 11.4, 4' (T. Yusa, 0.05-m Refractor + CCD);
    15.73, 11.8, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.71, 11.0, 6' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD; 6.8' tail in p.a. 283 deg);
    15.48, 10.9, 4.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    15.28, 11.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    15.25, 11.4, 8.3' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 6.5' tail in p.a. 284 deg);
    15.25, 9.8, 18.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.13, 11.6, 4.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.00, 11.4, 1.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    14.95, 12.1, 2' (M. Kwinta, Krzesławice, 0.4-m Newtonian);
    14.74, 11.4, 3.2' (K. Harikae, 0.15-m Newtonian + CCD);
    14.73, 11.7, 3.3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.71, 11.3, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.28, 11.2, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    14.16, 11.2, 1.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    14.00, 12.9, 1.12' (S. Shurpakov, 0.41-m Newtonian + CCD);
    13.98, 11.7, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.97, 11.9, 1.5' (M. Kwinta, Krzesławice, 0.3-m Newtonian);
    13.97, 10.1, 14' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 288 deg);
    13.97, 10.7, 15' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.7' tail in p.a. 288 deg);
    13.97, 9.9, 16.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 287 deg);
    13.73, 11.5, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    13.68, 11.4, 3.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.12, 11.4, 5.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    13.07, 11.2, 3.5' (W. Kutschera, 0.508-m Newtonian);
    13.05, 9.9, 18' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 287 deg);
    13.01, 12.2, 2.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.97, 9.7, 15.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.3' tail in p.a. 284 deg);
    12.97, 9.9, 13' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.97, 11.1, 13.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 288 deg);
    12.74, 11.5, 3.1' (T. Yusa, 0.05-m Refractor + CCD);
    12.09, 10.6, 5' (M. Meyer, 0.05-m Refractor + CCD);
    11.97, 10.3, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 289 deg);
    11.97, 12.3, 1.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.97, 12.2, 2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    11.96, 10.4, 11' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.96, 11.4, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 285 deg);
    11.74, 11.2, 5.3' (T. Yusa, 0.05-m Refractor + CCD);
    11.25, 10.8, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    11.04, 11.8, 2.4' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.76, 10.5, 5.6' (T. Yusa, 0.05-m Refractor + CCD);
    10.64, 12.1, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    10.62, 11.4, 2.3' (Y. Nagai, 0.05-m Refractor + CCD);
    10.03, 11.9, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.98, 10.5, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.98, 10.7, 14.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 289 deg);
    09.98, 11.1, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.3' tail in p.a. 286 deg);
    09.93, 11.8, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    08.98, 10.8, 4.9' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    08.97, 13.4, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    07.95, 12.9, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    07.71, 10.3, 3.3' (T. Yusa, 0.05-m Refractor + CCD);

29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 04.94, 11.9, 3.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    04.92, 16.3, 0.2' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    03.98, 16.3, 0.31' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    03.87, 12.0, 1.5' (T. Sciezor, Cracow, 0.05-m Refractor + CCD);
    03.83, 11.7, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.82, 11.8, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.82, 10.2, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.82, 11.1, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.93, 11.5, 5.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    01.85, 10.2, 4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
mar 28.81, 11.7, 2.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    28.61, 12.0, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    28.53, 12.3, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    27.78, 11.3, 3.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    27.59, 12.3, 2.1' (T. Yusa, 0.05-m Refractor + CCD);
    27.48, 12.4, 2.1' (T. Yusa, 0.05-m Refractor + CCD);
    26.91, 11.8, 2.3' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    26.86, 11.8, 3.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    26.50, 12.4, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.98, 11.7, 2.63' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.95, 11.9, 3.1' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    24.64, 11.9, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.58, 11.6, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.48, 11.5, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    24.05, 9.5, 16' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.04, 11.2, 11.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.04, 10.3, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.73, 12.7, 1.3' (K. Harikae, 0.15-m Newtonian + CCD);
    23.70, 11.3, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    23.58, 11.4, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    23.05, 11.1, 9.2' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.05, 11.9, 9.2' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.97, 11.3, 4.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.96, 9.7, 16.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.95, 10.6, 14.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.95, 11.3, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.93, 11.7, 3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    22.86, 11.1, 4.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    22.84, 13.8, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.72, 11.2, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.63, 12.2, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    22.48, 10.5, 7' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    22.47, 12.1, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    22.06, 11.8, 2.2' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    22.05, 11.8, 2.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    22.01, 11.7, 2.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    21.98, 12.1, 2.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    21.94, 12.0, 2.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    21.87, 11.3, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.85, 10.1, 14' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.85, 11.0, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.84, 11.5, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.84, 14.2, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.83, 11.8, 2.8' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    21.63, 12.5, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.54, 11.6, 2.8' (T. Yusa, 0.05-m Refractor + CCD);
    21.50, 11.5, 1.7' (Y. Nagai, 0.05-m Refractor + CCD);
    20.93, 11.9, 2.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    20.93, 10.3, 15' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD);
    20.86, 12.2, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.59, 11.4, 1.8' (Y. Nagai, 0.05-m Refractor + CCD);
    20.06, 11.5, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    19.94, 12.8, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.88, 11.7, 4.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    19.79, 11.4, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    19.62, 11.3, 4' (T. Yusa, 0.05-m Refractor + CCD);
    19.52, 10.9, 4.7' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    19.49, 11.2, 4' (T. Yusa, 0.05-m Refractor + CCD);
    19.11, 12.9, 1.4' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    19.06, 11.4, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.97, 10.9, 13' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.97, 9.9, 15' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.97, 11.6, 1.8' (W. Kutschera, 0.508-m Newtonian);
    18.96, 11.6, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.93, 10.5, 3.6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    18.90, 11.5, 2.5' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    18.90, 11.1, 2.5' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    18.86, 11.5, 3.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    18.85, 11.6, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.67, 11.6, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    18.62, 11.8, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.99, 11.2, 9.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    17.86, 11.7, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.70, 11.2, 4' (T. Yusa, 0.05-m Refractor + CCD);
    17.67, 11.8, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.61, 11.8, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.48, 11.1, 4.5' (T. Yusa, 0.05-m Refractor + CCD);
    17.09, 12.1, 2.1' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.90, 11.7, 3.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.86, 12.8, 1' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    16.83, 11.1, 2.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    16.67, 12.0, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.59, 11.6, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.48, 11.1, 4.5' (T. Yusa, 0.05-m Refractor + CCD);
    15.92, 12.0, 2.2' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.89, 11.2, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    15.86, 11.0, 4' (M. Meyer, 0.05-m Refractor + CCD);
    15.83, 11.7, 15' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.82, 10.0, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.82, 10.5, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.81, 11.5, 10.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.73, 11.3, 3.9' (T. Yusa, 0.05-m Refractor + CCD);
    15.64, 11.8, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.58, 11.5, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.56, 11.4, 3.3' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    15.53, 11.5, 4.2' (T. Yusa, 0.05-m Refractor + CCD);
    15.42, 11.5, 3' (C. Wyatt, 0.25-m Newtonian);
    15.10, 11.7, 3.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    14.99, 11.0, 1.3' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    14.97, 11.3, 3.01' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    14.97, 11.4, 3.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.90, 11.9, 2' (M. Kwinta, Krzesławice, 0.4-m Newtonian);
    14.73, 11.9, 2' (K. Harikae, 0.15-m Newtonian + CCD);
    14.64, 11.8, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.40, 11.4, 3' (C. Wyatt, 0.25-m Newtonian);
    14.08, 12.3, 1.7' (S. Shurpakov, 0.41-m Newtonian + CCD);
    13.94, 11.6, 2' (M. Kwinta, Krzesławice, 0.3-m Newtonian);
    13.94, 11.7, 12.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.94, 10.0, 15' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.94, 10.9, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.89, 11.3, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.82, 11.6, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    13.80, 11.2, 3.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.74, 11.8, 3.1' (T. Yusa, 0.05-m Refractor + CCD);
    13.64, 11.9, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    13.51, 11.5, 3' (T. Yusa, 0.05-m Refractor + CCD);
    13.12, 11.8, 1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    13.09, 11.4, 4.5' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    13.00, 11.2, 7.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    12.99, 11.8, 2.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.97, 11.1, 6.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.94, 11.4, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.94, 10.2, 14' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.93, 11.8, 11' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.92, 11.4, 4.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    12.91, 11.7, 2.9' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    12.87, 11.2, 4' (M. Meyer, 0.05-m Refractor + CCD);
    12.65, 11.4, 4' (T. Yusa, 0.05-m Refractor + CCD);
    12.58, 11.5, 3.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.48, 11.3, 3.5' (T. Yusa, 0.05-m Refractor + CCD);
    12.06, 11.2, 2.8' (M. Meyer, 0.05-m Refractor + CCD);
    11.95, 11.3, 2.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    11.94, 11.5, 2.07' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    11.86, 11.6, 2.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.81, 11.5, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    11.72, 11.8, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    11.63, 11.7, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    11.57, 11.7, 3.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    11.49, 11.7, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    11.42, 11.4, 4.5' (C. Wyatt, 0.25-m Newtonian);
    10.92, 11.5, 3.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.88, 12.1, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    10.86, 11.1, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    10.74, 11.4, 3.3' (T. Yusa, 0.05-m Refractor + CCD);
    10.63, 13.2, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    10.63, 11.8, 2.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.57, 11.6, 2.3' (Y. Nagai, 0.05-m Refractor + CCD);
    10.48, 11.6, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    10.42, 11.2, 5.7' (C. Wyatt, 0.25-m Newtonian);
    09.99, 11.6, 3.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.95, 11.1, 8.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    09.95, 10.3, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.95, 11.0, 12.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.95, 11.6, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.93, 11.3, 2' (M. Kwinta, 0.3-m Newtonian);
    09.92, 11.3, 1.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    09.88, 11.2, 3.2' (M. Meyer, 0.05-m Refractor + CCD);
    09.81, 11.5, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    09.49, 11.2, 3' (T. Yusa, 0.05-m Refractor + CCD);
    08.97, 11.5, 3.4' (W. Kutschera, 0.508-m Newtonian);
    08.92, 11.2, 3' (P. Guzik, 25x100 Binoculars);
    08.90, 11.2, 3.6' (M. Meyer, 0.05-m Refractor + CCD);
    08.89, 11.8, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    08.86, 12.0, 1.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.83, 11.4, 3.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    08.82, 11.7, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.82, 9.8, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.81, 11.9, 8.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.60, 10.8, 3.6' (T. Thaluang, 0.26-m Newtonian + CCD);
    07.94, 11.6, 3' (W. Kutschera, 0.25-m Newtonian);
    07.94, 11.9, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    07.90, 11.7, 2.7' (U. Pilz, 0.035-m Refractor + CCD);
    07.90, 11.4, 3.2' (M. Meyer, 0.05-m Refractor + CCD);
    07.89, 10.9, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.88, 12.5, 1.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.84, 10.2, 14.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.83, 11.3, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.83, 11.1, 10.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.61, 11.3, 2.8' (T. Yusa, 0.05-m Refractor + CCD);

40P/Vaisala
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.10, 18.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.19, 18.0, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.85, 17.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 308 deg);
mar 25.52, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 306 deg);
    24.56, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.96, 17.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.53, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.49, 16.5, 0.7' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 3.8' tail in p.a. 294 deg);
    21.99, 17.5, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.84, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.9' tail in p.a. 299 deg);
    21.69, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 306 deg);
    21.02, 17.4, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.53, 16.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.01, 17.3, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.52, 16.8, 0.5' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    18.96, 17.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 309 deg);
    18.54, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 301 deg);
    17.63, 17.1, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    17.52, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 304 deg);
    16.65, 16.3, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    16.55, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 310 deg);
    15.56, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.95, 17.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 306 deg);
    13.79, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 318 deg);
    12.94, 17.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 312 deg);
    12.67, 16.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    11.99, 17.5, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.56, 16.8, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    09.86, 17.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 306 deg);
    09.10, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.92, 16.4, 2' (T. Csorgei, Blahová, 0.28-m Schmidt-Cassegrain + CCD);
    07.65, 17.4, 0.3' (T. Yusa, 0.05-m Refractor + CCD);

63P/Wild
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.87, 18.8, 0.42' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
mar 19.02, 17.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.91, 18.0, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.99, 17.0, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 299 deg);
    09.80, 18.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.91, 17.6, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);

76P/West-Kohoutek-Ikemura
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 12.80, [18.7, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    07.76, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 05.34, 10.8, 5.9' (W. Souza, 0.05-m Refractor + CCD);
mar 25.51, 10.5, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    25.38, 10.1, 6' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD; 12.7' tail in p.a. 251 deg);
    23.52, 10.4, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    23.32, 9.7, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    21.52, 10.3, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    21.32, 9.8, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    19.52, 10.1, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    18.86, 10.3, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.86, 10.3, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.53, 9.9, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    17.32, 10.2, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    16.86, 10.3, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.38, 10.0, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    16.38, 11.0, 3.2' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    16.32, 10.2, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    15.53, 10.3, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    15.34, 10.3, 3' (M. Goiato, 0.22-m Newtonian);
    15.32, 10.3, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    14.86, 10.5, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.38, 11.1, 3.2' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    14.37, 9.9, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    14.32, 10.3, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    13.86, 10.2, 3.3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    13.37, 9.8, 6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    13.37, 11.2, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    12.53, 10.0, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.39, 11.4, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    12.39, 9.9, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    10.86, 10.5, 2.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.39, 10.5, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    09.53, 10.6, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);

123P/West-Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.81, 17.4, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
mar 21.80, 19.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.79, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

124P/Mrkos
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.93, 19.0, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
mar 19.09, 18.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    14.03, 19.3, 0.18' (M. Mašek, Ondrejov (MPC 557), 0.3-m Newtonian + CCD);
    13.03, 18.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    13.01, 19.1, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    12.83, 18.9, 0.17' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    10.13, 18.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.05, 19.2, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.94, 18.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);

164P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.88, 17.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.13, 18.3, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.91, 17.5, 0.3' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    13.98, 17.6, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.94, 17.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 274 deg);
    09.03, 17.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.81, 17.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

175P/Hergenrother
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 09.02, 19.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);

195P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 26.93, 18.5, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    12.94, 18.3, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);

210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.08, 17.2, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.66, 17.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.66, 17.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.67, 17.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 279 deg);
    18.67, 17.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 291 deg);
    17.68, 17.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.68, 17.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.25, 18.9, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.68, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 295 deg);
    13.14, 16.8, 0.6' (W. Kutschera, 0.508-m Newtonian);
    09.99, 17.2, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

215P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 27.12, 20.7, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.22, 20.3, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);

217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.82, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.93, 17.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.85, 18.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 27.22, 14.5, 0.6' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    27.08, 13.9, 1.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    24.82, 14.8, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.77, 14.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    23.76, 14.3, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.8' tail in p.a. 270 deg);
    23.73, 13.6, 1.2' (K. Harikae, 0.15-m Newtonian + CCD);
    22.79, 14.5, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.2' tail in p.a. 268 deg);
    22.71, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.3' tail in p.a. 269 deg);
    21.79, 15.1, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.78, 13.4, 1.2' (K. Harikae, 0.15-m Newtonian + CCD);
    21.76, 14.5, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 0.8' tail in p.a. 271 deg);
    21.74, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.3' tail in p.a. 270 deg);
    21.08, 15.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.71, 14.1, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.8' tail in p.a. 270 deg);
    20.11, 15.3, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD; 2.5' tail in p.a. 270 deg);
    20.11, 13.7, 2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    19.82, 14.4, 0.7' (K. Yoshimoto, 0.3-m Newtonian + CCD; 15' tail in p.a. 274 deg);
    18.81, 14.6, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 0.8' tail in p.a. 278 deg);
    18.72, 14.7, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.9' tail in p.a. 265 deg);
    18.10, 13.9, 1.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 271 deg);
    17.81, 14.8, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1' tail in p.a. 273 deg);
    17.77, 14.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 1' tail in p.a. 270 deg);
    17.72, 14.2, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.9' tail in p.a. 268 deg);
    16.81, 14.6, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.2' tail in p.a. 272 deg);
    16.72, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.3' tail in p.a. 267 deg);
    15.81, 14.7, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.6' tail in p.a. 273 deg);
    15.78, 14.8, 0.5' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 270 deg);
    15.72, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.5' tail in p.a. 268 deg);
    15.15, 14.9, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD; 3.1' tail in p.a. 269 deg);
    14.81, 14.5, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.74, 13.9, 0.9' (K. Harikae, 0.15-m Newtonian + CCD);
    13.81, 14.5, 0.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.1' tail in p.a. 273 deg);
    13.78, 14.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.14, 14.6, 0.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    13.13, 13.6, 2.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.26° tail in p.a. 272 deg);
    11.78, 14.6, 0.4' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 274 deg);
    09.12, 16.4, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.20, 15.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);

240P-B/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.81, 19.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.81, 18.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
mar 18.80, 18.7, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.77, 19.3, 0.23' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    11.77, 17.0, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.77, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.76, 18.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.84, 17.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.84, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.84, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.78, 17.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.78, 19.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.78, 18.6, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.78, 17.3, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.78, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.77, 18.8, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.86, 19.1, 0.21' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    07.77, 17.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.77, 18.9, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.77, 18.9, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.82, 16.8, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.81, 17.2, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.81, 17.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.81, 16.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.81, 14.1, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
mar 23.93, 16.4, 0.3' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    22.86, 15.3, 68' (D. Buczynski, Tarbatness, 0.35-m Schmidt-Cassegrain + CCD);
    22.82, 15.0, 0.5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 0.5' tail in p.a. 85 deg);
    22.82, 17.2, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.82, 16.7, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.78, 17.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 94 deg);
    21.78, 15.2, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 89 deg);
    21.77, 17.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 90 deg);
    20.84, 16.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.92, 16.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.87, 16.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.84, 16.2, 0.37' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 0.4' tail in p.a. 95 deg);
    18.81, 16.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.81, 14.8, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.80, 16.5, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.78, 16.6, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    17.87, 15.0, 1.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.2' tail in p.a. 204 deg);
    17.84, 17.2, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.80, 13.8, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6' tail in p.a. 88 deg);
    15.79, 15.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 87 deg);
    15.79, 16.4, 1.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 87 deg);
    15.79, 16.2, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 83 deg);
    15.77, 16.7, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 80 deg);
    15.53, 15.9, 0.6' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    13.83, 15.9, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    13.77, 16.1, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.77, 15.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.48, 16.2, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    12.97, 16.3, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.89, 14.9, 1.7' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.84, 14.3, 3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 224 deg);
    12.77, 16.3, 0.4' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 0.7' tail in p.a. 106 deg);
    11.83, 16.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.79, 16.8, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 92 deg);
    11.77, 14.8, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 87 deg);
    11.77, 16.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 88 deg);
    11.76, 16.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 89 deg);
    11.45, 14.8, 1.4' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 97 deg);
    10.84, 15.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 88 deg);
    10.84, 13.9, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6' tail in p.a. 81 deg);
    10.84, 15.9, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 84 deg);
    09.97, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.82, 14.8, 1.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 91 deg);
    09.78, 15.9, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 82 deg);
    09.78, 16.1, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 85 deg);
    09.78, 16.1, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 84 deg);
    09.78, 14.3, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 87 deg);
    08.89, 14.3, 0.5' (W. Kutschera, 0.508-m Newtonian + CCD);
    08.85, 15.9, 0.4' (M. Meyer, 0.05-m Refractor + CCD);
    08.83, 16.6, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD; 0.7' tail in p.a. 89 deg);
    08.78, 14.5, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 88 deg);
    08.78, 15.4, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 90 deg);
    08.77, 15.8, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 85 deg);
    07.86, 15.9, 0.34' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 0.6' tail in p.a. 85 deg);
    07.83, 16.1, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.77, 14.5, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 87 deg);
    07.77, 16.0, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 90 deg);
    07.77, 15.7, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 83 deg);

242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 22.88, 18.1, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.88, 17.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.90, 17.4, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.82, 18.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.75, 18.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

450P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 08.96, 19.0, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);

493P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 09.79, 17.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.80, 17.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 25.55, 14.5, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.57, 14.4, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.51, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.85, 15.6, 1.2' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD);
    22.57, 14.4, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    22.51, 14.4, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.57, 14.5, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.52, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.56, 14.5, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.48, 15.0, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    18.58, 14.4, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    18.50, 14.5, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.58, 14.4, 1' (A. Pearce, Nedlands, Perth, W. Australia (MPC P14), 0.05-m Refractor + CCD);
    17.54, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.59, 14.6, 1' (A. Pearce, Nedlands, Perth, W. Australia (MPC P14), 0.05-m Refractor + CCD);
    16.53, 14.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.58, 14.6, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.51, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.51, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.58, 14.7, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    12.62, 14.1, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.57, 14.7, 1' (A. Pearce, Nedlands, Perth, W. Australia (MPC P14), 0.05-m Refractor + CCD);
    10.57, 14.8, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);

C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.81, 18.0, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.08, 15.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.04, 16.5, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.80, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 244 deg);
    21.06, 16.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.78, 15.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.06, 16.1, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.13, 16.1, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.79, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.79, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 252 deg);
    16.79, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.17, 15.7, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    13.16, 15.6, 0.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    10.01, 16.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.75, 16.3, 0.5' (T. Yusa, 0.05-m Refractor + CCD);

C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 19.17, 17.1, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.81, 15.7, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.80, 14.8, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.80, 16.0, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.80, 16.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
mar 22.86, 16.7, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.86, 15.8, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.79, 16.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.79, 16.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.79, 14.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.88, 15.6, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.46, 15.4, 1' (T. Yusa, 0.05-m Refractor + CCD);
    18.93, 16.2, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.82, 15.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.82, 14.9, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.82, 15.5, 0.47' (M. Meyer, 0.05-m Refractor + CCD);
    18.82, 15.8, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.79, 15.4, 0.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    18.77, 15.5, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.78, 15.9, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.78, 14.7, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.78, 15.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.76, 15.5, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.49, 15.0, 1' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    13.80, 14.6, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 255 deg);
    13.79, 15.6, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 257 deg);
    13.79, 15.5, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 257 deg);
    12.86, 14.6, 1.5' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.82, 15.2, 0.7' (M. Meyer, 0.05-m Refractor + CCD);
    12.81, 15.4, 0.5' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    12.46, 14.7, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    12.14, 15.1, 0.7' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    11.88, 15.1, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.79, 14.8, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.78, 15.6, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 257 deg);
    11.78, 15.5, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.77, 15.3, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    11.47, 14.9, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    10.84, 14.3, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    10.81, 14.6, 1.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.8' tail in p.a. 255 deg);
    10.46, 15.3, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    09.87, 16.0, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.82, 15.0, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    09.77, 15.2, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.77, 14.9, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 255 deg);
    09.77, 15.5, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    09.76, 15.6, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5' tail in p.a. 254 deg);
    09.52, 14.9, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    08.82, 15.3, 0.9' (M. Meyer, 0.05-m Refractor + CCD);
    08.79, 15.7, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.79, 15.5, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.79, 14.3, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.90, 16.0, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.82, 15.3, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    07.82, 15.5, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.79, 14.0, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.78, 15.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.78, 15.5, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.46, 14.8, 0.9' (T. Yusa, 0.05-m Refractor + CCD);

C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.84, 15.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 248 deg);
    03.84, 15.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3' tail in p.a. 245 deg);
    03.84, 16.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 245 deg);
    02.90, 15.0, 1.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
mar 25.96, 15.6, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    24.06, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 249 deg);
    24.05, 16.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 247 deg);
    24.05, 16.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 244 deg);
    23.03, 14.7, 0.9' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    23.02, 15.7, 1' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.02, 15.1, 1.1' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.95, 15.4, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 4.3' tail in p.a. 250 deg);
    22.94, 16.1, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 248 deg);
    22.94, 15.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.4' tail in p.a. 248 deg);
    22.94, 16.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 250 deg);
    22.64, 14.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 0.8' tail in p.a. 246 deg);
    22.51, 15.0, 0.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 3.9' tail in p.a. 246 deg);
    21.94, 15.6, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD; 7.2' tail in p.a. 247 deg);
    21.86, 14.1, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.84, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.6' tail in p.a. 248 deg);
    21.83, 16.1, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3' tail in p.a. 244 deg);
    21.83, 16.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.1' tail in p.a. 245 deg);
    21.64, 15.7, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    20.97, 15.5, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 8.3' tail in p.a. 247 deg);
    20.08, 15.7, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD; 3.7' tail in p.a. 250 deg);
    19.52, 15.3, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.5' tail in p.a. 252 deg);
    19.50, 15.0, 0.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 4.8' tail in p.a. 245 deg);
    19.11, 15.3, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 3.7' tail in p.a. 251 deg);
    19.05, 15.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 4.8' tail in p.a. 249 deg);
    18.95, 16.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.9' tail in p.a. 249 deg);
    18.95, 15.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 244 deg);
    18.95, 15.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 247 deg);
    18.85, 14.8, 0.3' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    18.83, 15.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 6.4' tail in p.a. 243 deg);
    18.77, 14.4, 0.25' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    17.84, 14.8, 1' (M. Paling, Appledorne Observatory, Farnsfield (MPC Z11), 0.12-m Refractor + CCD);
    17.52, 15.1, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 261 deg);
    16.84, 14.5, 0.25' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    16.82, 14.8, 1.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.52, 14.7, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    15.84, 15.2, 0.9' (M. Meyer, 0.05-m Refractor + CCD; 0.3' tail in p.a. 244 deg);
    15.81, 14.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.3' tail in p.a. 247 deg);
    15.80, 15.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 246 deg);
    15.80, 15.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.5' tail in p.a. 246 deg);
    15.80, 15.6, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 6.1' tail in p.a. 247 deg);
    14.94, 15.7, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    13.81, 15.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 248 deg);
    13.81, 14.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.4' tail in p.a. 250 deg);
    13.80, 15.8, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.3' tail in p.a. 248 deg);
    13.79, 15.2, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 248 deg);
    13.79, 13.8, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.54, 15.4, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 246 deg);
    13.05, 15.7, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.96, 14.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.8' tail in p.a. 247 deg);
    12.96, 15.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 249 deg);
    12.95, 15.2, 0.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.95, 15.5, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.9' tail in p.a. 245 deg);
    12.92, 14.9, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    12.84, 14.9, 0.9' (M. Meyer, 0.05-m Refractor + CCD; 1.6' tail in p.a. 248 deg);
    12.83, 15.0, 1.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    12.80, 15.2, 0.6' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 5' tail in p.a. 247 deg);
    12.59, 15.1, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 246 deg);
    12.57, 14.6, 0.9' (T. Thaluang, MPC-O51, 0.26-m Newtonian + CCD; 4.9' tail in p.a. 248 deg);
    11.91, 15.6, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    11.83, 14.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 246 deg);
    11.82, 15.4, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 246 deg);
    11.82, 15.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.8' tail in p.a. 246 deg);
    11.80, 15.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.8' tail in p.a. 243 deg);
    10.85, 14.4, 1.2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 3.5' tail in p.a. 249 deg);
    10.51, 15.4, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    10.15, 15.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.85, 15.1, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    09.84, 14.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 249 deg);
    09.84, 15.0, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 252 deg);
    09.83, 15.5, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.5' tail in p.a. 247 deg);
    09.79, 15.3, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 251 deg);
    09.07, 15.4, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.95, 14.6, 1.3' (M. Meyer, 0.05-m Refractor + CCD);
    08.92, 14.5, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD);
    08.90, 14.0, 0.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    08.77, 15.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 249 deg);
    08.77, 14.3, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5' tail in p.a. 247 deg);
    08.76, 15.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 247 deg);
    08.03, 16.2, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.87, 15.3, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 5.8' tail in p.a. 249 deg);
    07.86, 15.0, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    07.82, 14.2, 2.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5' tail in p.a. 245 deg);
    07.81, 15.6, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 245 deg);
    07.81, 15.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 251 deg);
    07.68, 14.5, 1.3' (T. Yusa, 0.05-m Refractor + CCD);

C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.83, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.88, 16.7, 0.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
mar 25.57, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.53, 16.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.92, 16.0, 0.42' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    22.91, 16.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.53, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.50, 16.7, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.90, 17.3, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.82, 16.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.54, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.93, 16.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.57, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.99, 16.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.56, 16.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    19.49, 16.4, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    18.52, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 237 deg);
    17.50, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 237 deg);
    17.10, 16.3, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    16.60, 16.2, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    16.50, 16.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.53, 16.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.93, 16.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.57, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.97, 16.7, 0.28' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    12.91, 15.7, 1.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.92, 16.3, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.83, 16.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.76, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.85, 16.7, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);

C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.80, 16.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.91, 17.2, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 25.54, 16.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.97, 17.7, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.99, 17.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.55, 16.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.99, 17.8, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);

C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.11, 18.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.12, 15.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.14, 15.3, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.83, 14.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.84, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.84, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.84, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.19, 14.2, 0.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.49, 14.8, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.18, 15.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2023 V1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 10.00, 18.6, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 09.85, 19.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.87, 17.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.07, 17.3, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.01, 17.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.80, 18.1, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 04.85, 12.2, 1' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    03.79, 12.6, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 156 deg);
    03.79, 10.5, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.8' tail in p.a. 156 deg);
    03.78, 13.1, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.7' tail in p.a. 158 deg);
    03.78, 13.1, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    02.86, 13.0, 2.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    01.80, 13.5, 1.5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 152 deg);
mar 30.87, 14.6, 0.5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 5' tail in p.a. 158 deg);
    30.79, 12.2, 5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    27.79, 12.4, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    26.91, 13.7, 1.3' (W. Souza, 0.05-m Refractor + CCD);
    26.04, 13.0, 2.1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
    26.03, 12.5, 2.1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 2.9' tail in p.a. 134 deg);
    24.49, 13.2, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.2' tail in p.a. 144 deg);
    24.42, 13.0, 1' (T. Yusa, 0.05-m Refractor + CCD);
    23.05, 12.7, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 2.6' tail in p.a. 136 deg);
    23.04, 12.3, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 3' tail in p.a. 144 deg);
    22.92, 11.7, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    22.84, 12.7, 1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 11' tail in p.a. 163 deg);
    22.84, 12.6, 1.4' (R. Arnold, Trevinca, Spain, 0.303-m Newtonian + CCD);
    22.81, 9.8, -- (M. Deconinck, Mariembourg Belgium, 25x130 Binoculars);
    22.80, 13.3, 1.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.79, 13.5, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 4' tail in p.a. 156 deg);
    22.78, 9.2, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 16' tail in p.a. 149 deg);
    22.77, 12.3, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.4' tail in p.a. 148 deg);
    22.77, 11.9, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 9.2' tail in p.a. 151 deg);
    22.50, 12.8, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 3.1' tail in p.a. 143 deg);
    22.43, 12.1, 1.6' (T. Yusa, 0.05-m Refractor + CCD);
    22.40, 11.6, 3' (C. Wyatt, 0.25-m Newtonian);
    22.13, 12.2, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 9' tail in p.a. 163 deg);
    21.92, 11.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    21.80, 13.5, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.78, 13.0, 1.5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3.6' tail in p.a. 148 deg);
    21.77, 8.9, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 15.8' tail in p.a. 155 deg);
    21.77, 10.6, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.4' tail in p.a. 154 deg);
    21.76, 11.2, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.2' tail in p.a. 151 deg);
    21.50, 12.1, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.4' tail in p.a. 137 deg);
    21.46, 13.1, 1.5' (K. Yoshimoto, 0.077-m Refractor + CCD; 12' tail in p.a. 150 deg);
    20.82, 13.2, 1.6' (P. Dekelver, 0.3-m Newtonian + CCD; 8.8' tail in p.a. 142 deg);
    20.78, 13.2, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 2.6' tail in p.a. 147 deg);
    20.43, 11.8, 2.1' (T. Yusa, 0.05-m Refractor + CCD; 2.7' tail in p.a. 156 deg);
    19.87, 9.8, 5' (J. Gonzalez Suarez, 0.102-m Maksutov);
    19.78, 12.9, 1.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 3' tail in p.a. 133 deg);
    19.77, 12.2, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 3.8' tail in p.a. 152 deg);
    19.10, 12.3, 2.1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD; 0.8' tail in p.a. 164 deg);
    18.85, 12.2, 1.7' (W. Kutschera, 0.508-m Newtonian);
    18.82, 11.5, 2.5' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    18.81, 11.7, 1.4' (M. Meyer, 0.05-m Refractor + CCD);
    18.78, 11.9, 8.06' (J. Konecny, Medlov - Hlivice, 0.2-m Cassegrain reflector);
    18.77, 10.5, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 11.4' tail in p.a. 146 deg);
    18.77, 9.5, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.5' tail in p.a. 144 deg);
    18.76, 12.1, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.6' tail in p.a. 123 deg);
    18.76, 11.8, 9.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 22.3' tail in p.a. 147 deg);
    18.76, 11.3, 1.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.52, 12.0, 2.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 5.6' tail in p.a. 144 deg);
    18.13, 12.3, 2.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 5' tail in p.a. 148 deg);
    17.94, 12.3, -- (C. Howland, Price, Utah, 0.318-m Newtonian);
    17.92, 10.6, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    17.82, 13.3, 1.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.51, 11.9, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4.2' tail in p.a. 145 deg);
    17.45, 11.7, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    17.07, 11.6, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 7.3' tail in p.a. 144 deg);
    17.06, 11.3, 4.1' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 9.2' tail in p.a. 145 deg);
    16.91, 10.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    16.85, 9.8, 5' (J. Gonzalez Suarez, 0.102-m Maksutov);
    16.82, 11.0, 2.7' (C. Harder, Lild Strand /DK, 0.35-m Newtonian);
    16.78, 12.8, 1.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 3.6' tail in p.a. 137 deg);
    16.43, 11.5, 3.2' (T. Yusa, 0.05-m Refractor + CCD; 11.6' tail in p.a. 157 deg);
    16.05, 12.2, 2.3' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 3.2' tail in p.a. 161 deg);
    16.05, 11.3, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 12.2' tail in p.a. 160 deg);
    15.91, 10.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    15.83, 9.9, 4' (C. Labordena, La Serra de Engarcera, 0.2-m Schmidt-Cassegrain);
    15.82, 11.3, 2.1' (M. Meyer, 0.05-m Refractor + CCD);
    15.77, 10.2, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 11.2' tail in p.a. 149 deg);
    15.77, 9.7, 13.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.5' tail in p.a. 156 deg);
    15.76, 11.3, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 19.4' tail in p.a. 151 deg);
    15.75, 12.2, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 6.2' tail in p.a. 146 deg);
    15.51, 11.8, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 3.9' tail in p.a. 134 deg);
    15.46, 12.1, 2' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD; 2.2' tail in p.a. 130 deg);
    15.41, 10.6, 4.5' (C. Wyatt, 0.25-m Newtonian);
    14.91, 10.2, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    14.84, 9.5, 4' (S. Getliffe, 0.09-m Refractor);
    14.78, 11.1, 3' (M. Kwinta, Krzesławice, 0.4-m Newtonian);
    14.76, 9.9, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 3.5' tail in p.a. 134 deg);
    14.51, 11.6, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 5.6' tail in p.a. 149 deg);
    14.48, 11.4, 2' (K. Yoshimoto, 0.077-m Refractor + CCD; 15' tail in p.a. 155 deg);
    13.84, 13.7, 0.65' (D. Heggie, Edinburgh, Scotland, 0.05-m Refractor + CCD; 6' tail in p.a. 155 deg);
    13.81, 9.9, 2.8' (S. Getliffe, 0.09-m Refractor);
    13.78, 10.6, 3' (M. Kwinta, Krzesławice, 0.3-m Newtonian);
    13.77, 11.7, 0.9' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 4' tail in p.a. 140 deg);
    13.76, 10.4, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.4' tail in p.a. 145 deg);
    13.76, 9.5, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 20.3' tail in p.a. 143 deg);
    13.76, 11.4, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 22' tail in p.a. 147 deg);
    13.52, 11.1, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 6.5' tail in p.a. 152 deg);
    13.44, 11.1, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    13.44, 10.0, 5' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    13.41, 12.1, 1.7' (T. Yusa, 0.05-m Refractor + CCD; 1.7' tail in p.a. 133 deg);
    13.10, 13.4, 1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    12.87, 9.7, 4' (J. Gonzalez Suarez, 0.102-m Maksutov);
    12.86, 9.5, 5' (J. Gonzalez Suarez, 25x100 Binoculars);
    12.84, 11.0, 8.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.80, 11.5, 3' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD; 8' tail in p.a. 150 deg);
    12.80, 11.5, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD; 8' tail in p.a. 150 deg);
    12.80, 11.3, 2.9' (M. Meyer, 0.05-m Refractor + CCD; 2.7' tail in p.a. 160 deg);
    12.78, 10.7, 1.1' (W. Hasubick, 0.44-m Newtonian);
    12.77, 10.5, 7.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.26° tail in p.a. 150 deg);
    12.73, 11.0, 4.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    12.42, 10.2, 2.6' (T. Yusa, 0.05-m Refractor + CCD; 2.7' tail in p.a. 128 deg);
    11.81, 11.5, 2.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.76, 10.1, 12.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.5' tail in p.a. 153 deg);
    11.76, 9.1, 15.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.1' tail in p.a. 149 deg);
    11.75, 11.8, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 7.6' tail in p.a. 125 deg);
    11.75, 10.9, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 15.4' tail in p.a. 149 deg);
    11.52, 11.3, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 6.4' tail in p.a. 147 deg);
    11.46, 11.6, 1.54' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    11.44, 11.7, 1.7' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD; 2.6' tail in p.a. 132 deg);
    11.41, 11.2, 2.5' (T. Yusa, 0.05-m Refractor + CCD; 2.5' tail in p.a. 127 deg);
    11.41, 10.2, 3.9' (C. Wyatt, 0.25-m Newtonian; 13' tail in p.a. 168 deg);
    10.77, 10.1, 8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 149 deg);
    10.52, 11.0, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 12' tail in p.a. 154 deg);
    10.44, 11.1, 2.9' (T. Yusa, 0.05-m Refractor + CCD; 4.2' tail in p.a. 136 deg);
    10.43, 10.6, 1.8' (Y. Nagai, 0.05-m Refractor + CCD);
    10.42, 10.3, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    10.41, 10.0, 4.7' (C. Wyatt, 0.25-m Newtonian; 17' tail in p.a. 146 deg);
    09.79, 10.2, 3.3' (M. Meyer, 0.05-m Refractor + CCD; 3' tail in p.a. 135 deg);
    09.79, 9.6, 4' (P. Guzik, 25x100 Binoculars);
    09.77, 9.7, 4' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    09.77, 11.3, 0.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2.3' tail in p.a. 127 deg);
    09.76, 9.0, 15.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.7' tail in p.a. 144 deg);
    09.76, 9.1, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.7' tail in p.a. 140 deg);
    09.75, 9.6, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    09.75, 10.4, 13.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 22.4' tail in p.a. 144 deg);
    09.75, 11.1, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 7.9' tail in p.a. 111 deg);
    09.75, 9.6, 2' (M. Kwinta, 0.3-m Newtonian);
    09.46, 9.8, 6' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    09.45, 9.6, 5' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    09.44, 10.2, 3.6' (T. Yusa, 0.05-m Refractor + CCD; 5.8' tail in p.a. 139 deg);
    08.83, 8.7, 4.3' (T. Reyes, West Hills, 0.071-m Refractor; 4.29' tail in p.a. 137 deg);
    08.81, 11.5, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 8.3' tail in p.a. 150 deg);
    08.79, 9.9, 4.4' (M. Meyer, 0.05-m Refractor + CCD; 6.1' tail in p.a. 145 deg);
    08.76, 9.5, 4' (P. Guzik, 25x100 Binoculars);
    08.44, 9.5, 5' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    08.44, 9.6, 6' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    08.43, 10.3, 2.3' (O. Miyazaki, 0.32-m Newtonian);
    08.42, 9.6, 2.5' (Y. Nagai, 0.05-m Refractor + CCD);
    08.12, 9.4, 3.5' (K. Wierzchos, Mt. Lemmon, Arizona, USA, 20x125.0 Binoculars);
    07.77, 9.2, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 15.3' tail in p.a. 145 deg);
    07.77, 10.3, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 3.5' tail in p.a. 127 deg);
    07.76, 9.4, 3' (M. Kwinta, 0.4-m Newtonian);
    07.75, 9.2, 12' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 11.4' tail in p.a. 145 deg);
    07.74, 10.2, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.2' tail in p.a. 147 deg);
    07.40, 9.5, 4' (T. Yusa, 0.05-m Refractor + CCD);

C/2024 G2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.86, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 170 deg);
    13.95, 18.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 183 deg);
    09.96, 18.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 27.21, 17.6, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    24.08, 18.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 187 deg);
    23.02, 17.2, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.02, 17.8, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.04, 17.7, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.04, 17.7, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.12, 15.8, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.78, 15.2, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    21.78, 15.3, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    21.12, 15.4, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.17, 15.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.80, 15.0, 0.48' (T. Yusa, 0.05-m Refractor + CCD);
    15.80, 15.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    13.80, 15.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.20, 14.7, 0.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.80, 15.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    12.49, 15.2, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.18, 15.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.80, 15.6, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    09.16, 16.0, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.18, 15.3, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);

C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 12.98, 18.9, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    10.00, 18.9, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.16, 16.5, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.15, 16.5, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.20, 16.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2024 T5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.49, 14.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.49, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 202 deg);
    22.45, 14.8, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 1.3' tail in p.a. 207 deg);
    21.50, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 207 deg);
    16.52, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 209 deg);
    15.50, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 202 deg);
    14.50, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.50, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 207 deg);

C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.69, 13.9, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    22.56, 12.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.68, 12.0, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.67, 12.3, 0.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.30, 11.6, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    20.63, 12.3, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.69, 12.3, 1.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    18.55, 12.5, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.69, 12.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.30, 11.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    16.69, 12.5, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.29, 11.4, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    15.69, 12.3, 2.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.62, 11.8, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.42, 11.3, 2' (C. Wyatt, 0.25-m Newtonian);
    15.35, 11.8, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.35, 12.0, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.29, 11.3, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    14.69, 12.0, 2.4' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.41, 14.7, -- (S. Badcock, Speranza Observatory, Otaki, New Zealand, 0.25-m Newtonian + CCD);
    14.29, 11.3, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    13.69, 11.6, 2.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    11.42, 10.5, 2.5' (C. Wyatt, 0.25-m Newtonian);

C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.86, 18.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 42 deg);
    18.99, 17.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.83, 18.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 41 deg);
    18.82, 17.4, 0.4' (M. Paling, Appledorne Observatory, Farnsfield (MPC Z11), 0.12-m Refractor + CCD);
    17.95, 17.2, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 28 deg);
    17.88, 17.7, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.92, 17.3, 0.38' (D. Buczynski, Tarbatness Observatory, Portmahomack, 0.35-m Schmidt-Cassegrain + CCD);
    12.96, 17.1, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 15 deg);
    12.02, 17.1, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.06, 17.4, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 43 deg);
    09.90, 17.2, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 20 deg);
    09.84, 17.9, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 45 deg);
    07.79, 17.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 52 deg);

C/2025 L1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 24.09, 17.4, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.98, 16.9, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.03, [17.0, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    13.96, 17.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.12, 17.4, 0.32' (M. Meyer, 0.05-m Refractor + CCD);
    10.77, 17.4, 0.5' (T. Yusa, 0.05-m Refractor + CCD);

C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 19.83, 19.1, 0.17' (N. Barnes, PAT, 0.3-m Newtonian + CCD; 0.2' tail in p.a. 80 deg);
    17.88, 18.9, 0.17' (N. Barnes, PAT, 0.3-m Newtonian + CCD);
    14.82, 18.7, 0.17' (N. Barnes, PAT, 0.3-m Newtonian + CCD);
    11.83, 18.8, 0.21' (N. Barnes, PAT, 0.3-m Newtonian + CCD);

C/2025 Q3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 22.44, 15.2, 1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    09.03, 15.3, 1.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    09.03, 14.9, 1.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    08.03, 15.3, 1.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    08.03, 14.9, 1.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);

C/2025 R2 (SWAN)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 09.80, 18.9, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.76, 18.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2025 R3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 05.44, 6.0, 2' (D. Zubenel, De Soto, Kansas., 0.15-m Newtonian);
    05.34, 6.0, 3' (W. Souza, 10x42.0 Binoculars);
    05.18, 6.6, 2.3' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 1.1° tail in p.a. 291 deg);
    05.18, 6.2, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.6° tail in p.a. 291 deg);
    05.17, 6.0, 4' (C. Labordena, La Serratella, 11x80 Binoculars; 20' tail);
    05.12, 6.0, 6' (M. Paradowski, Lublin, 0.075-m Refractor + CCD);
    05.12, 6.0, 4.5' (M. Paradowski, Lublin, 0.075-m Refractor + CCD);
    04.34, 6.1, 2.5' (M. Goiato, 20x100 Binoculars; 0.5° tail in p.a. 280 deg);
    04.17, 6.1, 4' (J. Gonzalez Suarez, Collada de Aralla, 1530 m, Spain, 0.102-m Maksutov; 0.4° tail in p.a. 300 deg);
    04.16, 5.9, 3' (J. Gonzalez Suarez, 15x70 Binoculars);
    04.14, 6.3, 2' (M. Collins, Everton, 0.103-m Refractor; 4' tail in p.a. 274 deg);
    04.14, 6.5, 5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 0.5° tail in p.a. 278 deg);
    04.12, 6.6, 3.5' (M. Filipek, Jerzmanowice, 0.25-m Newtonian);
    04.10, 6.3, 5' (P. Guzik, 10x42.0 Binoculars);
    02.80, 6.8, 3' (Y. Nagai, 0.044-m Camera lens + CCD; 0.1° tail in p.a. 290 deg);
    02.19, 6.5, 7' (M. Reszelski, Jastrowo, Poland, 15x70 Binoculars);
    01.83, 6.5, 4.7' (K. Yoshimoto, 0.065-m Camera lens + CCD; 1.5° tail in p.a. 292 deg);
    01.15, 7.0, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    01.08, 6.3, 2.5' (T. Karhula, Virsbo, Sweden, 10x50 Binoculars);
mar 31.20, 7.0, 3' (V. Díaz, 20x80 Binoculars);
    31.13, 6.9, 4' (B. Granslo, Bjerke, Oslo, 0.08-m Refractor);
    30.51, 7.5, 4.4' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD; 48.4' tail in p.a. 296 deg);
    30.18, 6.9, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 30' tail in p.a. 290 deg);
    30.17, 7.2, 3.95' (N. James, 0.072-m Refractor + CCD);
    30.14, 7.2, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    29.20, 7.1, 3' (V. Díaz, Elche, 20x80 Binoculars);
    29.20, 6.9, 4.5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 30' tail in p.a. 290 deg);
    29.17, 7.3, 3.2' (S. Getliffe, 0.09-m Refractor; 0.09° tail in p.a. 58 deg);
    29.17, 7.3, 2' (J. Shanklin, 20x80 Binoculars);
    29.17, 7.3, 4.89' (N. James, 0.072-m Refractor + CCD);
    29.16, 6.9, 3' (G. van Buitenen, Dordrecht, 11x70 Binoculars);
    29.15, 6.7, 4.8' (M. Collins, Everton, 0.103-m Refractor);
    29.15, 7.3, 3' (A. Scholten, Eerbeek, 15x80 Binoculars);
    28.19, 7.3, 2' (J. Shanklin, 20x80 Binoculars; 1° tail in p.a. 310 deg);
    28.18, 7.8, 2.2' (S. Getliffe, 0.09-m Refractor);
    28.16, 8.8, -- (S. Getliffe, 0.09-m Refractor);
    28.15, 7.9, 5.7' (H. Mikuz, Crni Vrh (MPC 106), 0.6-m Prime focus of a reflector + CCD; 32.7' tail in p.a. 308 deg);
    27.83, 8.0, 2.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 17' tail in p.a. 305 deg);
    27.20, 6.9, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 30' tail in p.a. 310 deg);
    27.18, 7.6, 6' (M. Buechner, PixelskiesAstro, Castilléjar, Spain, 0.14-m Refractor + CCD; 2° tail in p.a. 306 deg);
    27.18, 7.3, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    27.17, 7.0, 3' (G. van Buitenen, Dordrecht, Sterrenburg (G06), 11x70 Binoculars);
    27.15, 7.5, 3' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    27.12, 7.6, 3' (B. Granslo, Bjerke, Oslo, Norway, 0.08-m Refractor);
    26.16, 9.0, -- (S. Getliffe, 0.09-m Refractor);
    26.16, 7.1, 3.5' (M. Collins, Everton, 0.103-m Refractor);
    25.51, 8.4, 4.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1.1° tail in p.a. 309 deg);
    25.15, 7.8, 2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 13' tail in p.a. 305 deg);
    25.12, 7.7, 3' (P. Guzik, 25x100 Binoculars; 0.2° tail in p.a. 305 deg);
    25.11, 7.6, 4' (P. Guzik, 10x42.0 Binoculars);
    24.92, 8.7, -- (S. Flotskiy, Strezhevoy, 0.075-m Camera lens + CCD);
    24.82, 8.3, 3.3' (T. Yusa, 0.05-m Refractor + CCD);
    24.81, 8.3, 3' (O. Miyazaki, 0.32-m Newtonian);
    24.20, 7.1, 6' (J. Gonzalez Suarez, Collada de Aralla, 1530 m, Spain, 10x50 Binoculars);
    24.19, 7.3, 8' (J. Gonzalez Suarez, 0.102-m Maksutov; 0.6° tail in p.a. 310 deg);
    24.17, 7.3, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    23.85, 8.2, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 310 deg);
    23.82, 8.9, 2.9' (T. Yusa, 0.05-m Refractor + CCD);
    23.81, 8.1, 3.8' (K. Harikae, 0.15-m Newtonian + CCD; 10' tail in p.a. 309 deg);
    23.51, 8.6, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 0.9° tail in p.a. 309 deg);
    23.16, 8.1, 3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 6.5' tail in p.a. 305 deg);
    23.15, 9.1, 5.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.15, 8.9, 5.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.12, 7.8, 3' (P. Guzik, 10x42.0 Binoculars);
    22.22, 8.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    22.14, 8.1, 3' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    21.82, 9.0, 2' (T. Yusa, 0.05-m Refractor + CCD);
    21.81, 8.5, 3.4' (K. Harikae, 0.15-m Newtonian + CCD);
    21.51, 8.8, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 0.9° tail in p.a. 311 deg);
    21.18, 9.6, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 16.9' tail in p.a. 311 deg);
    21.13, 8.2, 3' (P. Guzik, 10x42.0 Binoculars);
    20.82, 8.7, 1.5' (Y. Nagai, 0.05-m Refractor + CCD);
    20.82, 8.4, 1.7' (O. Miyazaki, 0.32-m Newtonian);
    20.47, 8.7, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 51' tail in p.a. 311 deg);
    20.22, 8.5, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    19.84, 8.6, 2.1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 9' tail in p.a. 313 deg);
    19.51, 8.9, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 29' tail in p.a. 313 deg);
    19.18, 8.5, 2.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    19.17, 8.8, 1.2' (W. Hasubick, 0.44-m Newtonian);
    19.17, 8.1, 3' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    19.15, 8.2, 3' (M. Deconinck, Fernelmont, 25x130 Binoculars);
    19.15, 8.3, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 7.1' tail in p.a. 320 deg);
    19.13, 8.4, 3' (P. Guzik, 10x42.0 Binoculars);
    19.12, 8.6, 2.5' (P. Guzik, 25x100 Binoculars);
    18.51, 8.1, 2.5' (C. Hergenrother, 30x125.0 Binoculars);
    18.22, 8.8, 3' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD);
    18.20, 9.9, -- (S. Getliffe, 0.09-m Refractor);
    18.16, 8.8, 6.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 322 deg);
    18.11, 8.9, 4.4' (U. Pilz, Leipzig, 0.03-m Refractor + CCD);
    17.83, 9.1, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    17.51, 9.0, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 14' tail in p.a. 316 deg);
    17.21, 7.6, 8' (J. Gonzalez Suarez, Collada de Aralla, 1530 m, Spain, 15x70 Binoculars);
    17.20, 8.9, 2.5' (C. Labordena, La Serra de Engarcera, 0.2-m Schmidt-Cassegrain);
    17.19, 7.8, 7' (J. Gonzalez Suarez, 0.102-m Maksutov);
    16.14, 8.6, 4' (P. Guzik, 10x42.0 Binoculars);
    16.13, 8.8, 2.5' (P. Guzik, 25x100 Binoculars);
    15.83, 9.0, 2.7' (T. Yusa, 0.05-m Refractor + CCD; 2.4' tail in p.a. 317 deg);
    15.51, 9.3, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    15.16, 8.5, 2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 4' tail in p.a. 316 deg);
    15.13, 9.0, 2' (P. Guzik, 25x100 Binoculars);
    14.85, 10.2, 2.1' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    14.13, 9.2, 2' (P. Guzik, 25x100 Binoculars);
    13.84, 10.5, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    12.51, 9.5, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.20, 9.7, -- (S. Getliffe, 0.09-m Refractor);
    12.16, 9.9, 0.8' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    10.16, 10.3, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    09.52, 10.1, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.16, 9.6, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);

C/2025 T1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 25.39, 15.1, 1' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD);

C/2025 V2 (Rankin)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.85, 18.3, 0.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    21.82, 18.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.99, 18.4, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    07.78, 18.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);

C/2025 Y1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 26.97, 17.0, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    25.59, 17.1, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.59, 17.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.09, 16.9, 0.3' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.09, 17.6, 0.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.97, 17.3, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.91, 17.1, 0.23' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    22.58, 17.1, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.52, 16.8, 0.34' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.91, 17.0, 0.23' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    21.65, 17.1, 0.35' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.59, 17.0, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    20.60, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.54, 16.8, 0.3' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    19.08, 17.2, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.92, 17.4, 0.19' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    18.60, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.59, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.60, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.60, 17.3, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.09, 17.2, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);

C/2026 A1 (MAPS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.11, 3.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.10, 3.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.10, 3.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.08, 3.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.07, 3.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.06, 3.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.04, 3.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    03.03, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    03.02, 3.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    03.01, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    03.00, 3.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    02.99, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.24° tail in p.a. 98 deg);
    02.98, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.17° tail in p.a. 100 deg);
    02.97, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.17° tail in p.a. 100 deg);
    02.96, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 0.9° tail in p.a. 100 deg);
    02.95, 3.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 0.9° tail in p.a. 100 deg);
    02.94, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.93, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.92, 3.7, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.91, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.90, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.90, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.89, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.88, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.86, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.85, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.85, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.84, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.83, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.82, 3.6, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.81, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.80, 3.7, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.80, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.79, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.78, 3.7, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.77, 3.7, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.76, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.75, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.75, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.74, 3.9, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.73, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.72, 4.0, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.71, 3.8, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.70, 4.1, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.70, 3.9, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.69, 4.1, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.68, 4.1, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.67, 4.2, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.66, 4.3, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    02.65, 4.5, 7' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
mar 29.98, 7.6, 1.6' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
    29.37, 7.7, 1' (C. Wyatt, 0.25-m Newtonian);
    28.37, 8.0, 0.8' (C. Wyatt, 0.25-m Newtonian);
    28.36, 8.2, 2.5' (T. Lovejoy, Birkdale (MPC Q80), 0.1-m Refractor + CCD; 35.5' tail in p.a. 99 deg);
    27.99, 7.8, 3.1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 8.4' tail in p.a. 92 deg);
    27.99, 8.9, 2.3' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 4.2' tail in p.a. 93 deg);
    27.36, 8.0, 3' (T. Lovejoy, Birkdale (MPC Q80), 0.2-m Newtonian + CCD; 30' tail in p.a. 102 deg);
    27.11, 7.8, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 100 deg);
    26.42, 8.6, 1.2' (K. Yoshimoto, 0.077-m Refractor + CCD);
    26.41, 8.7, 2' (M. Mattiazzo, Strathalbyn, South Australia, 0.07-m Camera lens + CCD);
    26.36, 8.7, 3' (T. Lovejoy, Birkdale (MPC Q80), 0.2-m Newtonian + CCD; 36' tail in p.a. 100 deg);
    26.11, 7.9, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 2' tail in p.a. 100 deg);
    26.11, 8.0, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    26.00, 9.8, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 4.3' tail in p.a. 108 deg);
    26.00, 8.9, 2.7' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 15.9' tail in p.a. 103 deg);
    26.00, 8.8, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 6' tail in p.a. 107 deg);
    25.99, 9.9, 1.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 8.7' tail in p.a. 103 deg);
    25.99, 8.9, 2.7' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 11' tail in p.a. 101 deg);
    25.99, 9.9, 1.9' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
    25.39, 8.7, 1.5' (C. Wyatt, 0.25-m Newtonian; 7' tail in p.a. 115 deg);
    25.38, 8.5, 1.5' (C. Wyatt, 15x70 Binoculars);
    25.37, 8.5, 3.5' (T. Lovejoy, Birkdale (MPC Q80), 0.2-m Newtonian + CCD);
    25.12, 8.8, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 15' tail in p.a. 100 deg);
    25.00, 8.7, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 6.1' tail in p.a. 102 deg);
    25.00, 8.7, 3.7' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 20.2' tail in p.a. 100 deg);
    25.00, 9.7, 3.2' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    25.00, 9.8, 3.1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 19.7' tail in p.a. 101 deg);
    24.47, 9.5, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4.6' tail in p.a. 101 deg);
    24.42, 9.3, 2' (M. Mattiazzo, Strathalbyn, South Asutralia, 25x100 Binoculars);
    24.42, 9.5, 2' (M. Mattiazzo, Strathalbyn, South Australia, 0.07-m Camera lens + CCD);
    24.38, 9.3, 2.3' (C. Wyatt, 0.25-m Newtonian; 5' tail in p.a. 115 deg);
    24.12, 9.5, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 7' tail in p.a. 101 deg);
    23.42, 10.4, 2' (M. Mattiazzo, Strthalbyn, South Australia, 70x70 Binoculars + CCD);
    23.42, 10.0, 2' (M. Mattiazzo, Strathallbyn, South Australia, 25x100 Binoculars);
    23.39, 9.7, 2.4' (C. Wyatt, 0.25-m Newtonian; 4.5' tail in p.a. 114 deg);
    23.01, 11.3, 2.3' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 2.6' tail in p.a. 105 deg);
    23.01, 10.2, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 5' tail in p.a. 106 deg);
    23.00, 11.5, 1.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 3.7' tail in p.a. 102 deg);
    23.00, 10.1, 3.5' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 9.1' tail in p.a. 97 deg);
    23.00, 10.3, 2.4' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 5.2' tail in p.a. 100 deg);
    23.00, 11.5, 1.6' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 6.3' tail in p.a. 102 deg);
    22.91, 9.7, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    22.47, 10.5, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4.1' tail in p.a. 100 deg);
    22.43, 9.6, 2' (M. Mattiazzo, Strathalbyn, South Australia, 25x100 Binoculars);
    22.43, 10.1, 2.9' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 12.1' tail in p.a. 98 deg);
    22.38, 10.1, 2.2' (C. Wyatt, 0.25-m Newtonian; 3' tail in p.a. 107 deg);
    22.12, 10.4, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 7' tail in p.a. 100 deg);
    21.99, 9.9, 5' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD);
    21.91, 9.8, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    21.49, 9.6, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.44, 10.6, 1.9' (K. Yoshimoto, 0.077-m Refractor + CCD; 5' tail in p.a. 101 deg);
    21.12, 10.0, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 6' tail in p.a. 105 deg);
    20.80, 9.3, 4' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD);
    20.76, 10.2, 5' (A. Pearce, Skygems Namibia Remote Observatory, 0.1-m Refractor + CCD; 38.2' tail in p.a. 96 deg);
    20.43, 9.5, 3' (M. Mattiazzo, Strathalbyn, South Australia, 25x100 Binoculars);
    20.38, 9.4, 3.6' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD);
    20.01, 9.7, 5.1' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD; 29.1' tail in p.a. 99 deg);
    19.83, 8.3, 8' (J. Gonzalez Suarez, Alto de la Camperona, 1603 m, Spain, 0.102-m Maksutov);
    19.48, 10.5, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 5.1' tail in p.a. 106 deg);
    19.44, 9.8, 3' (M. Mattiazzo, Strathalbyn, South Australia, 25x100 Binoculars);
    19.12, 10.4, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 5' tail in p.a. 104 deg);
    19.01, 9.9, 6' (C. Hergenrother, 0.065-m Refractor + CCD; 2.9' tail in p.a. 96 deg);
    19.00, 9.8, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD; 19.9' tail in p.a. 100 deg);
    18.49, 9.5, 3' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 7' tail in p.a. 95 deg);
    18.48, 10.6, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.5' tail in p.a. 101 deg);
    18.48, 10.6, 3' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 9.8' tail in p.a. 101 deg);
    18.05, 9.9, 5.9' (V. Italo, Warm Springs, GA, 0.2-m Schmidt-Cassegrain + CCD; 7.2' tail in p.a. 100 deg);
    18.01, 10.1, 7' (C. Hergenrother, 0.065-m Refractor + CCD; 2.7' tail in p.a. 94 deg);
    17.91, 10.0, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    17.83, 9.5, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD);
    17.77, 10.9, 5' (A. Pearce, Skygems Namibia Remote Observatory, 0.1-m Refractor + CCD; 18.9' tail in p.a. 99 deg);
    17.49, 9.7, 3.2' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 5.9' tail in p.a. 100 deg);
    17.48, 10.8, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.44, 10.7, 3' (K. Yoshimoto, 0.077-m Refractor + CCD; 10' tail in p.a. 101 deg);
    17.02, 11.7, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    17.02, 10.4, 6.9' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    16.92, 10.1, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    16.83, 9.2, 7' (J. Gonzalez Suarez, Alto del Castro, 1660 m, Spain, 0.102-m Maksutov);
    16.80, 10.0, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    16.77, 10.9, 4' (A. Pearce, Skygems Namibia Remote Observatory, 0.1-m Refractor + CCD; 21' tail in p.a. 99 deg);
    16.49, 10.0, 3.2' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 5.5' tail in p.a. 97 deg);
    16.48, 11.2, 3.2' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 6.9' tail in p.a. 98 deg);
    16.41, 10.3, 2.6' (T. Yusa, 0.05-m Refractor + CCD);
    16.02, 11.6, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    16.02, 10.4, 6.9' (M. Mašek, Paranal, 0.067-m Camera lens + CCD; 4.3' tail in p.a. 101 deg);
    16.01, 10.0, 7' (C. Hergenrother, 0.065-m Refractor + CCD);
    16.00, 9.9, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD; 10.2' tail in p.a. 99 deg);
    15.96, 9.9, 4' (M. Goiato, 20x100 Binoculars);
    15.93, 10.5, 4' (W. Souza, 0.05-m Refractor + CCD);
    15.92, 10.2, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    15.82, 10.1, 3' (C. Labordena, La Serra de Engarcera, 0.2-m Schmidt-Cassegrain);
    15.48, 10.9, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.48, 11.0, 4' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 6.7' tail in p.a. 97 deg);
    15.44, 10.5, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    15.44, 10.3, 3' (M. Mattiazzo, Strathalbyn, South Australia., 25x100 Binoculars);
    15.40, 10.0, 5' (C. Wyatt, 0.25-m Newtonian);
    15.39, 10.1, 6.1' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD; 8.9' tail in p.a. 95 deg);
    15.03, 12.0, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.03, 10.6, 7.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.01, 10.1, 8' (C. Hergenrother, 0.065-m Refractor + CCD);
    15.00, 10.0, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD);
    14.92, 10.4, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    14.80, 10.1, 7' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 7' tail in p.a. 95 deg);
    14.48, 11.1, 3.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.48, 10.6, 4' (A. Pearce, Mardella Observatory, 0.43-m Schmidt-Cassegrain + CCD; 6.8' tail in p.a. 96 deg);
    14.44, 11.3, 3.3' (K. Yoshimoto, 0.077-m Refractor + CCD);
    14.44, 10.4, 3.3' (K. Yoshimoto, 0.077-m Refractor + CCD; 7' tail in p.a. 104 deg);
    14.39, 10.2, 6' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD; 8.8' tail in p.a. 95 deg);
    14.39, 10.2, 5' (C. Wyatt, 0.25-m Newtonian);
    14.34, 13.9, 0.21' (S. Badcock, 0.25-m Newtonian + CCD);
    14.03, 12.0, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    14.03, 10.7, 7.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    14.01, 10.3, 7' (C. Hergenrother, 0.065-m Refractor + CCD);
    13.77, 10.9, 4' (A. Pearce, Skygems Namibia Remote Observatory (MPC L81), 0.1-m Refractor + CCD; 8' tail in p.a. 96 deg);
    13.75, 12.1, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.45, 11.8, 3.8' (K. Yoshimoto, 0.077-m Refractor + CCD);
    13.45, 10.7, 3.8' (K. Yoshimoto, 0.077-m Refractor + CCD; 10' tail in p.a. 98 deg);
    13.43, 10.3, 3' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    13.42, 10.6, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    13.41, 11.3, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    13.40, 10.4, 6' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD);
    13.11, 10.6, 1.2' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD; 2.2' tail in p.a. 90 deg);
    13.03, 10.7, 7.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    13.03, 10.9, 4.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    13.03, 12.2, 3' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 1.3' tail in p.a. 93 deg);
    13.03, 12.2, 3.5' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 1.8' tail in p.a. 99 deg);
    13.03, 10.7, 6.2' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 3.7' tail in p.a. 100 deg);
    13.03, 12.0, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    13.02, 10.4, 6' (C. Hergenrother, 0.065-m Refractor + CCD);
    13.00, 10.2, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD; 7.6' tail in p.a. 94 deg);
    12.84, 9.8, 6' (J. Gonzalez Suarez, Alto del Castro, 1660 m, Spain, 25x100 Binoculars);
    12.82, 11.3, 3.9' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    12.80, 10.8, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD; 10' tail in p.a. 95 deg);
    12.77, 9.9, 1' (W. Hasubick, 0.44-m Newtonian);
    12.48, 11.5, 3' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    12.48, 11.1, 3.3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    12.41, 11.2, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    12.11, 11.2, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.03, 10.7, 6.9' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    12.03, 12.3, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    12.02, 10.5, 5' (C. Hergenrother, 0.065-m Refractor + CCD);
    12.00, 10.3, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD; 17.7' tail in p.a. 95 deg);
    11.48, 11.1, 3.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    11.44, 10.6, 4' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    11.43, 10.7, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    11.40, 10.6, 4.5' (C. Wyatt, 0.25-m Newtonian);
    11.40, 11.0, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    11.03, 10.8, 6.9' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    11.03, 12.1, 3.7' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    11.02, 13.1, 1.4' (C. Hergenrother, 0.065-m Refractor + CCD);
    11.02, 10.4, 5.2' (C. Hergenrother, 0.065-m Refractor + CCD);
    11.00, 10.3, 6' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD);
    10.85, 10.2, 4' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    10.48, 11.6, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.44, 10.9, 3' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    10.44, 10.8, 4' (K. Yoshimoto, 0.077-m Refractor + CCD);
    10.42, 11.3, -- (G. van Buitenen, Siding Spring, AU (Q62), 0.51-m Ritchey-Chretien + CCD);
    10.41, 11.6, 3.3' (T. Lekatsas, Heaven's Mirror Observatory, Yass (MPC Q56), 0.106-m Refractor + CCD);
    10.40, 10.4, 2.4' (T. Yusa, 0.05-m Refractor + CCD);
    10.40, 10.6, 6' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD; 8.2' tail in p.a. 95 deg);
    10.39, 10.8, 4.2' (C. Wyatt, 0.25-m Newtonian);
    10.03, 12.2, 4.6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    10.03, 11.0, 7.4' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    10.02, 10.8, 4.6' (B. Gilmore, Cismont Ridge (MPC 247), 0.13-m Newtonian + CCD);
    10.02, 10.6, 5' (C. Hergenrother, 0.065-m Refractor + CCD);
    10.02, 13.4, 1.2' (C. Hergenrother, 0.065-m Refractor + CCD);
    09.81, 10.7, 3' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    09.76, 11.4, 6.3' (J. Koukal, Valasske Mezirici, 0.25-m Newtonian + CCD);
    09.44, 11.4, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    09.44, 11.3, 3' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    09.41, 10.4, 3.3' (T. Yusa, 0.05-m Refractor + CCD);
    09.41, 10.9, 5.6' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD; 8.1' tail in p.a. 92 deg);
    09.03, 11.3, 5.5' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    09.03, 13.1, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    08.81, 11.1, 3' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    08.44, 11.5, 2' (M. Mattiazzo, Lake Boga, Victoria, 25x100 Binoculars);
    08.43, 11.6, 3' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD);
    08.40, 11.1, 5.3' (T. Lovejoy, iTelescope Observatory, Siding Spring (MPC Q62), 0.51-m Cassegrain reflector + CCD; 5.3' tail in p.a. 94 deg);
    08.06, 11.8, 4.8' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD);
    08.04, 11.2, 4.8' (T. Lovejoy, iTelescope Deep Sky Chile, Rio Hurtado (MPC X07), 0.25-m Newtonian + CCD);
    08.03, 11.6, 5.5' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    08.03, 13.3, 2.3' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    08.03, 13.0, 2.8' (C. Hergenrother, 0.51-m Ritchey-Chretien + CCD);
    08.03, 11.2, 4.8' (C. Hergenrother, 0.51-m Ritchey-Chretien + CCD);
    07.44, 12.0, 4.4' (K. Yoshimoto, 0.077-m Refractor + CCD; 2.5' tail in p.a. 95 deg);

C/2026 B2 (Sun-Gao)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 15.49, 14.2, 0.9' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    13.82, [16.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.17, 13.3, 2.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    12.15, 14.6, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    10.82, 13.7, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    09.52, 13.6, 1.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.20, 15.7, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2026 B3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 21.88, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    13.96, 19.4, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 67 deg);

C/2026 C1 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 03.94, 18.5, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD);
    03.89, 18.7, 0.19' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
mar 29.02, 18.3, 0.19' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    24.07, 19.4, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.53, 19.1, 0.38' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);

A/2025 A1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 12.93, 18.4, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.48, 18.2, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.2' tail in p.a. 140 deg);

A/2025 Y1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
mar 14.60, 17.0, -- (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.99, 17.2, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.69, 17.4, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    10.71, 17.5, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    09.97, 18.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);