3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 11.81, 18.1, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 69 deg);
    06.81, 18.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    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);


10P/Tempel 2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.77, 16.0, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    22.74, 16.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    21.75, 16.4, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    21.72, 16.7, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.74, 17.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.73, 16.9, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.74, 17.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.07, 18.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.06, 20.0, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    06.09, 16.7, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD; 11.4" tail in p.a. 256 deg);
    02.74, 17.3, 0.35' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.75, 17.3, 0.35' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.13, 17.3, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


24P/Schaumasse
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 25.86, 13.3, 6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 286 deg);
    24.93, 12.4, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 292 deg);
    24.93, 11.8, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 288 deg);
    24.92, 13.1, 7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5' tail in p.a. 288 deg);
    24.84, 13.3, 6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 4' tail in p.a. 286 deg);
    24.63, 13.6, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.58, 13.0, 2.1' (T. Yusa, 0.05-m Refractor + CCD; 1.8' tail in p.a. 286 deg);
    24.05, 15.7, 0.27' (O. Beppeforti, Beppe Forti Astronomical Observatory, Montelupo (MPC K83), 0.4-m Ritchey-Chretien + CCD);
    23.95, 15.6, 0.55' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    22.89, 11.9, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 288 deg);
    22.89, 11.2, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.2' tail in p.a. 290 deg);
    22.88, 11.7, 1.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    22.88, 12.5, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 293 deg);
    22.62, 13.2, 1.7' (T. Yusa, 0.05-m Refractor + CCD; 1.7' tail in p.a. 285 deg);
    22.00, 11.2, 8.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.00, 12.1, 10.3' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.86, 12.5, 2.3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    21.66, 13.0, 2.3' (T. Yusa, 0.05-m Refractor + CCD; 0.1° tail in p.a. 288 deg);
    21.63, 13.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.57, 13.7, 1.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.47, 13.0, 2.5' (C. Wyatt, 0.4-m Newtonian);
    20.98, 12.4, 2.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    20.94, 12.9, 2.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3.2' tail in p.a. 284 deg);
    19.98, 14.9, 0.5' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    19.69, 13.0, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    19.63, 13.2, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.58, 13.4, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.00, 15.6, 0.49' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    18.93, 12.3, 3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.60, 12.8, 2.2' (T. Yusa, 0.05-m Refractor + CCD);
    17.94, 12.9, 1.1' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    17.03, 11.3, 12' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.1' tail in p.a. 291 deg);
    17.02, 12.6, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 291 deg);
    17.02, 11.6, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 292 deg);
    16.98, 14.8, 0.5' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    16.90, 12.9, 2.4' (M. Meyer, 0.05-m Refractor + CCD);
    16.63, 13.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.59, 13.2, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.56, 13.0, 1.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    15.63, 13.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.60, 12.8, 2.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.6' tail in p.a. 278 deg);
    15.19, 14.0, 1.3' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    15.05, 12.9, 1.8' (W. Kutschera, 0.508-m Newtonian);
    14.94, 12.7, 2.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3' tail in p.a. 292 deg);
    14.88, 13.1, 1.7' (M. Meyer, 0.05-m Refractor + CCD);
    14.47, 12.5, 1.3' (C. Wyatt, 0.4-m Newtonian);
    13.63, 12.3, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.4' tail in p.a. 283 deg);
    13.57, 12.7, 2.9' (T. Yusa, 0.05-m Refractor + CCD);
    12.69, 13.0, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    12.04, 10.9, 14.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.9' tail in p.a. 288 deg);
    12.04, 12.3, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.2' tail in p.a. 290 deg);
    12.04, 11.5, 11' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 288 deg);
    11.88, 12.6, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 5.5' tail in p.a. 292 deg);
    11.81, 12.9, 1.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    11.04, 12.4, 2.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    11.03, 12.9, 2.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.90, 11.8, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 285 deg);
    10.90, 11.1, 12' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.7' tail in p.a. 290 deg);
    10.89, 11.7, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5' tail in p.a. 291 deg);
    10.88, 12.5, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    10.63, 12.1, 2.5' (T. Thaluang, MPC-O58, 0.26-m Newtonian + CCD);
    10.17, 14.0, 0.6' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    10.01, 14.7, 0.5' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    09.93, 11.2, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 289 deg);
    09.92, 11.8, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 289 deg);
    09.92, 11.8, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 287 deg);
    08.99, 13.1, 1.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    08.91, 13.9, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.77, 13.5, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    08.76, 12.1, 2.7' (T. Thaluang, MPC-O58, 0.26-m Newtonian + CCD);
    08.70, 13.0, 1.7' (T. Yusa, 0.05-m Refractor + CCD);
    08.68, 12.3, 1.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.57, 13.1, 1.4' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    08.03, 12.6, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 282 deg);
    08.02, 10.9, 13' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.31° tail in p.a. 288 deg);
    07.99, 10.8, 15' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.22° tail in p.a. 288 deg);
    07.96, 12.0, 1.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2.1' tail in p.a. 285 deg);
    07.90, 12.1, 2.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    07.90, 12.2, 2.5' (M. Meyer, 0.05-m Refractor + CCD);
    07.89, 13.1, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.63, 12.5, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.05, 11.9, 11' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.05, 11.0, 11' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.04, 10.9, 12' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.28° tail in p.a. 287 deg);
    07.01, 12.3, 2.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.92, 11.4, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 292 deg);
    06.91, 11.9, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    06.91, 12.0, 9.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.5' tail in p.a. 289 deg);
    06.91, 11.5, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 290 deg);
    06.89, 13.3, 1.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.84, 12.3, 2.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.18, 11.3, 2' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 1.5' tail in p.a. 291 deg);
    06.00, 13.5, 0.7' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    05.97, 13.9, 0.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.18, 14.5, 0.35' (R. Arnold, Trevinca, Spain, 0.3-m Newtonian + CCD);
    05.12, 13.5, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    04.05, 12.2, 2' (W. Souza, 0.05-m Refractor + CCD);
    03.99, 14.4, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD);
    02.65, 12.1, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.92, 12.7, 1.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    01.90, 14.2, 0.6' (P. Dekelver, 0.3-m Newtonian + 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 31.65, 12.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.19, 12.1, 2.2' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    30.90, 13.5, 1.1' (P. Dekelver, 0.3-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);
    28.07, 10.8, 8.4' (T. Lehmann, Weimar, 0.035-m Camera lens + CCD);
    28.04, 10.3, 15' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.28° tail in p.a. 289 deg);
    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);
    27.42, 10.4, 13' (T. Lehmann, ChopinObs (remote), 0.08-m Refractor + CCD; 0.25° tail in p.a. 287 deg);


29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 25.82, 11.8, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    24.86, 12.0, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    24.80, 11.5, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    24.54, 13.1, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.43, 13.6, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    22.87, 13.2, 0.7' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    22.85, 11.3, 5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    22.85, 9.8, 15.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.85, 10.7, 12' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.84, 12.1, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    22.84, 11.9, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.65, 12.3, 2.3' (T. Yusa, 0.05-m Refractor + CCD);
    22.57, 11.8, 3.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.56, 12.1, 2.8' (T. Yusa, 0.05-m Refractor + CCD);
    21.91, 12.9, 7.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.91, 12.1, 7.3' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.87, 12.5, 1.3' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    21.84, 12.2, 2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    21.59, 13.0, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    21.58, 13.4, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    21.54, 12.7, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.54, 12.4, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.46, 12.1, 4' (C. Wyatt, 0.4-m Newtonian);
    21.44, 12.9, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    20.89, 12.4, 1.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    20.89, 13.3, 0.6' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    20.87, 12.4, 1.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    20.83, 11.1, 5.5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    20.51, 12.7, 2' (T. Yusa, 0.05-m Refractor + CCD);
    19.90, 13.1, 0.7' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    19.66, 12.3, 2' (T. Yusa, 0.05-m Refractor + CCD);
    19.64, 11.8, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.54, 12.6, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.49, 12.2, 2.3' (T. Yusa, 0.05-m Refractor + CCD);
    18.91, 12.1, 1.25' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.84, 12.1, 2.25' (M. Paradowski, 0.075-m Refractor + CCD);
    18.84, 12.3, 2.25' (M. Paradowski, 0.075-m Refractor + CCD);
    18.61, 11.9, 3.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.57, 12.1, 2.6' (T. Yusa, 0.05-m Refractor + CCD);
    17.92, 12.4, 1.75' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    17.85, 12.0, 11' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.85, 10.4, 13.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.85, 11.4, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.89, 12.5, 2' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    16.89, 11.0, 6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    16.86, 13.2, -- (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    16.84, 11.7, 4.2' (M. Meyer, 0.05-m Refractor + CCD);
    16.54, 12.2, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.46, 13.7, 0.3' (C. Wyatt, 0.4-m Newtonian);
    16.44, 11.9, 2.8' (T. Yusa, 0.05-m Refractor + CCD);
    15.84, 12.4, 2.4' (M. Meyer, 0.05-m Refractor + CCD);
    15.55, 12.1, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.54, 12.0, 3.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.47, 13.7, -- (C. Wyatt, 0.4-m Newtonian);
    15.21, 13.1, 2.1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    14.98, 12.3, 1.3' (W. Kutschera, 0.508-m Newtonian);
    14.89, 12.4, 2.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    14.89, 11.8, 3' (E. Bryssinck, 0.4-m Newtonian + CCD);
    14.54, 12.4, 2.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.46, 12.0, 4.8' (C. Wyatt, 0.4-m Newtonian);
    13.96, 14.6, 0.7' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain + CCD);
    13.47, 12.3, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.47, 12.0, 3.8' (T. Yusa, 0.05-m Refractor + CCD);
    13.45, 12.0, 4.5' (C. Wyatt, 0.4-m Newtonian);
    12.59, 12.1, 2.8' (T. Yusa, 0.05-m Refractor + CCD);
    12.43, 12.2, 2.8' (T. Yusa, 0.05-m Refractor + CCD);
    11.85, 12.0, 14' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    11.84, 11.3, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.84, 9.9, 16.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.83, 12.2, 4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    11.83, 12.0, 12.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.43, 11.5, 4.3' (C. Wyatt, 0.4-m Newtonian);
    11.01, 12.2, 3.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.92, 10.0, 15.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.92, 11.2, 11' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.91, 12.7, 3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.91, 11.9, 11.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.86, 11.8, 5.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    09.83, 10.3, 13.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.83, 11.4, 9.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.82, 11.8, 11.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.89, 12.4, 3.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.84, 10.8, 4.5' (M. Meyer, 0.05-m Refractor + CCD);
    08.61, 12.0, 3.1' (T. Yusa, 0.05-m Refractor + CCD);
    08.60, 11.5, 5.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    08.54, 11.2, 4.1' (H. Smith, MPC-O58, 0.26-m Newtonian + CCD);
    08.43, 11.5, 3' (T. Yusa, 0.05-m Refractor + CCD);
    08.01, 11.6, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.94, 12.1, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    07.94, 11.2, 12' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    07.88, , 1.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    07.87, 12.1, 3.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.85, 11.2, 10.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.85, 10.2, 12.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.84, 11.7, 10.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.53, 11.8, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.49, 11.7, 4.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    06.91, 11.7, 5.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.87, 12.4, 2.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.87, 13.0, 1.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    06.83, 12.0, 8.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.83, 11.7, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.83, 10.8, 10.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.82, 12.1, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    06.80, 11.9, 4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    06.75, 11.7, 5.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.00, 16.9, 0.18' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    05.95, 15.8, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.90, 12.3, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    05.50, 12.0, 3.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    05.50, 15.1, 0.4' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    04.92, 16.3, 0.2' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    04.90, 11.9, 3.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    04.07, 11.5, 5.3' (W. Souza, 0.05-m Refractor + CCD);
    03.98, 16.3, 0.31' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    03.83, 11.7, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.83, 12.0, 1.5' (T. Sciezor, Cracow, 0.05-m Refractor + CCD);
    03.82, 11.1, 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, 11.8, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.58, 11.8, 2.6' (T. Yusa, 0.05-m Refractor + CCD);
    03.47, 11.8, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    02.93, 11.5, 5.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    02.58, 12.9, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.86, 15.9, 0.35' (P. Dekelver, 0.3-m Newtonian + 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);
    27.99, 11.3, 7.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 339 deg);
    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);


40P/Vaisala
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 12.06, 17.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.85, 17.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.84, 17.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.49, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.47, 17.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.51, 17.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.49, 17.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.84, 17.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.84, 17.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.97, 18.1, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.56, 17.5, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    08.51, 17.2, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.96, 17.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.88, 17.0, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 303 deg);
    07.52, 17.5, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.99, 17.9, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.84, 17.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.85, 17.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 308 deg);
    01.97, 17.3, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 27.94, 16.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.6' tail in p.a. 289 deg);


63P/Wild
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.45, 16.2, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    17.86, 16.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 284 deg);
    16.86, 15.0, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    16.82, 16.2, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.4' tail in p.a. 281 deg);
    14.92, 15.6, 0.7' (W. Kutschera, 0.508-m Newtonian + CCD);
    14.83, 15.6, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    14.82, 16.4, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.2' tail in p.a. 270 deg);
    11.82, 16.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 281 deg);
    09.92, 17.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.88, 14.9, 1.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    08.72, 14.9, 1.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    08.48, 16.7, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.6' tail in p.a. 280 deg);
    06.89, 14.0, 4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.9' tail in p.a. 278 deg);
    05.92, 18.0, 0.18' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    03.87, 18.8, 0.42' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
mar 27.88, 14.7, 2.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.87, 10.2, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    23.41, 10.2, 6' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    21.87, 10.6, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.78, 10.4, 2.6' (K. Harikae, 0.15-m Newtonian + CCD);
    21.34, 10.8, 6.6' (W. Souza, 0.05-m Refractor + CCD);
    20.35, 10.7, 6.6' (W. Souza, 0.05-m Refractor + CCD);
    19.88, 10.2, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.35, 11.4, 6.6' (W. Souza, 0.05-m Refractor + CCD);
    16.87, 10.0, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.88, 10.2, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.80, 9.4, 5' (M. Mattiazzo, Lake Boga, Victoria, 15x70 Binoculars);
    15.80, 9.7, 6' (M. Mattiazzo, Lake Boga, Victoria, 0.07-m Camera lens + CCD; 20' tail in p.a. 242 deg);
    14.74, 9.6, 3.5' (C. Wyatt, 0.4-m Newtonian);
    08.50, 10.4, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    05.34, 10.8, 5.9' (W. Souza, 0.05-m Refractor + CCD);
    02.51, 10.3, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD);


123P/West-Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 16.84, 17.2, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    14.84, 17.1, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD);
    07.86, 17.6, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    06.83, 17.6, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    06.81, 18.1, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.81, 17.4, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);


124P/Mrkos
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 15.99, 18.2, 0.3' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD);
    03.93, 19.0, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);


164P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 08.93, 17.1, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD);


210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.94, 18.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.57, 17.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.58, 17.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.65, 17.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.64, 17.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.95, 17.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.68, 16.8, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
mar 31.63, 17.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 06.82, 19.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.73, 14.8, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.2' tail in p.a. 263 deg);
    24.65, 14.8, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 256 deg);
    24.05, 14.9, 0.6' (M. Meyer, 0.05-m Refractor + CCD; 0.6' tail in p.a. 261 deg);
    22.02, 14.1, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.4' tail in p.a. 257 deg);
    21.73, 14.7, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 0.6' tail in p.a. 258 deg);
    21.69, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 254 deg);
    19.73, 14.6, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.2' tail in p.a. 260 deg);
    19.71, 14.4, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 7' tail in p.a. 263 deg);
    17.06, 13.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 265 deg);
    17.06, 15.1, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1' tail in p.a. 263 deg);
    17.05, 15.3, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 265 deg);
    16.73, 14.8, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 0.8' tail in p.a. 261 deg);
    16.66, 14.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 257 deg);
    15.73, 14.8, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.1' tail in p.a. 254 deg);
    15.66, 14.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.1' tail in p.a. 262 deg);
    14.73, 14.7, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.1' tail in p.a. 265 deg);
    14.72, 14.5, 0.5' (C. Wyatt, 0.4-m Newtonian);
    14.70, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.8' tail in p.a. 262 deg);
    13.69, 15.2, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    13.69, 14.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.5' tail in p.a. 263 deg);
    12.72, 14.7, 0.47' (T. Yusa, 0.05-m Refractor + CCD);
    12.06, 15.7, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 266 deg);
    11.14, 15.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.07, 14.4, 0.15' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    09.04, 15.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.72, 14.4, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    08.05, 15.2, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD; 0.8' tail in p.a. 264 deg);
    07.14, 15.2, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 0.9' tail in p.a. 267 deg);
    06.11, 15.4, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.69, 14.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 257 deg);
    02.06, 15.6, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.69, 14.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 258 deg);
    31.06, 16.3, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);


240P-B/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 06.80, 18.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.79, 19.9, 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);
    03.81, 19.7, 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 24.82, 17.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 82 deg);
    24.82, 16.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.82, 17.5, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.82, 16.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.81, 16.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 92 deg);
    22.81, 16.5, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.82, 17.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 83 deg);
    17.82, 16.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.82, 16.1, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 82 deg);
    11.81, 15.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 84 deg);
    11.80, 16.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.80, 16.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 85 deg);
    08.87, 17.4, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.86, 15.8, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD);
    07.85, 17.2, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.82, 15.0, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 89 deg);
    07.81, 16.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 85 deg);
    07.81, 16.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 87 deg);
    06.85, 17.3, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.80, 17.5, 1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 83 deg);
    06.80, 15.7, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 85 deg);
    06.79, 16.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 83 deg);
    06.79, 16.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 87 deg);
    05.93, 16.7, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    03.85, 17.4, 0.28' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    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);
    02.65, 14.1, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    01.84, 17.0, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 30.87, 16.7, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);


242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 06.82, 18.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


493P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 05.90, 18.4, 0.11' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    03.85, 18.3, 0.28' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.50, 14.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.47, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.45, 14.6, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.50, 14.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.48, 14.9, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.46, 14.5, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.50, 14.4, 0.7' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    15.46, 14.8, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.55, 14.3, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.46, 14.8, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    13.51, 15.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.45, 15.3, 0.3' (C. Wyatt, 0.4-m Newtonian);


C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 25.88, 15.9, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    24.95, 13.9, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.95, 15.9, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.95, 15.4, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.68, 15.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    24.04, 15.1, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    21.70, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.64, 15.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    19.73, 15.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.04, 15.6, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.95, 15.7, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    16.72, 15.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.72, 15.1, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.77, 15.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 234 deg);
    13.72, 15.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 243 deg);
    12.74, 15.4, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    12.05, 16.0, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.8' tail in p.a. 235 deg);
    10.04, 16.8, 0.4' (D. Buczynski, Tarbatness Observatory, Portmahomack, 0.35-m Schmidt-Cassegrain + CCD);
    09.96, 16.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.06, 16.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.74, 15.2, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    08.05, 15.9, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    08.03, 15.9, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.02, 15.2, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 236 deg);
    07.11, 15.9, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.09, 15.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 239 deg);
    06.98, 16.0, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.04, 16.2, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.04, 15.9, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.09, 15.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 242 deg);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 12.10, 17.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.13, 17.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.12, 17.3, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.12, 16.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.13, 17.2, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 17.81, 16.7, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.81, 14.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.81, 16.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.80, 15.9, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.82, 15.2, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 263 deg);
    07.81, 14.2, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.80, 15.8, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.80, 15.8, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.91, 15.9, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.79, 15.9, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.81, 16.0, 0.38' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    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, 16.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.80, 16.0, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    01.88, 16.0, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 30.89, 16.0, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.83, 15.3, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 266 deg);


C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 25.80, 15.9, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 254 deg);
    22.59, 14.7, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 248 deg);
    21.86, 15.1, 1.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.86, 16.0, 1.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    20.56, 15.1, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    17.84, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.3' tail in p.a. 248 deg);
    17.83, 16.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.9' tail in p.a. 245 deg);
    17.83, 15.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 248 deg);
    16.88, 15.5, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    16.47, 15.3, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    14.95, 14.5, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD);
    14.91, 15.0, 0.8' (E. Bryssinck, 0.4-m Newtonian + CCD; 4.3' tail in p.a. 242 deg);
    14.85, 15.5, 0.9' (M. Meyer, 0.05-m Refractor + CCD);
    13.55, 15.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    13.44, 15.1, 0.5' (C. Wyatt, 0.4-m Newtonian);
    12.48, 15.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    11.86, 15.2, 1.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    11.83, 15.7, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 6.2' tail in p.a. 245 deg);
    11.42, 15.0, 0.5' (C. Wyatt, 0.4-m Newtonian);
    10.93, 16.1, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.2' tail in p.a. 244 deg);
    10.93, 15.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 247 deg);
    10.93, 15.0, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.6' tail in p.a. 247 deg);
    10.85, 15.5, 0.2' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    08.93, 15.6, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 5' tail in p.a. 246 deg);
    08.89, 15.1, 0.9' (T. Csorgei, PalantirII (MPC 247), 0.303-m Newtonian + CCD; 2.3' tail in p.a. 254 deg);
    08.87, 14.8, 0.9' (M. Meyer, 0.05-m Refractor + CCD; 1.3' tail in p.a. 250 deg);
    08.51, 15.1, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    08.02, 15.3, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 244 deg);
    07.93, 15.3, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 247 deg);
    07.91, 16.0, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD; 4.9' tail in p.a. 247 deg);
    07.86, 15.6, 0.35' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    07.83, 15.6, 1.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.83, 14.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.5' tail in p.a. 247 deg);
    07.83, 15.3, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    07.83, 15.6, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.83, 16.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.1' tail in p.a. 248 deg);
    07.82, 15.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.3' tail in p.a. 248 deg);
    06.95, 15.6, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 4.6' tail in p.a. 246 deg);
    06.81, 15.7, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.7' tail in p.a. 245 deg);
    05.99, 16.3, 0.19' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    03.96, 15.9, 0.49' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    03.84, 16.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 245 deg);
    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);
    02.90, 15.0, 1.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    01.94, 15.7, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 4.6' tail in p.a. 245 deg);
mar 30.95, 15.5, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 2.8' tail in p.a. 243 deg);


C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.83, 17.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.49, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.84, 17.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.52, 17.0, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.52, 16.8, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.52, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.82, 17.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.95, 16.5, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.91, 16.4, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    08.53, 17.1, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    07.94, 16.9, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.85, 17.0, 0.4' (M. Meyer, 0.05-m Refractor + CCD);
    07.83, 17.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.93, 16.8, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    03.92, 18.4, 0.49' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    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);
    01.92, 17.0, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 30.93, 17.1, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 12.09, 17.5, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.12, 17.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.83, 17.7, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.50, 17.8, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.62, 17.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.53, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.47, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.49, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.59, 17.7, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.82, 18.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.58, 17.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.84, 18.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 11.85, 18.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.11, 18.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.81, 14.3, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    24.73, 14.0, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    24.08, 13.9, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    23.03, 12.6, 0.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    22.71, 14.2, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    22.06, 14.4, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    21.81, 14.4, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.73, 14.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.69, 14.0, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    21.20, 12.9, 4' (W. Souza, 0.05-m Refractor + CCD);
    21.07, 13.7, 0.3' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    19.81, 14.2, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.76, 14.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.74, 14.2, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    18.15, 13.3, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD);
    16.81, 14.1, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.75, 13.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.81, 14.5, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.75, 14.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.81, 14.1, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.73, 14.4, 0.4' (C. Wyatt, 0.4-m Newtonian);
    13.78, 14.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.08, 13.6, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.07, 14.5, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.07, 14.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.08, 14.2, 0.45' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    09.08, 15.4, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.75, 14.6, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    08.12, 14.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.2' tail in p.a. 46 deg);
    08.08, 14.9, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.07, 15.3, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.10, 13.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.10, 14.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.10, 15.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.08, 14.6, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.79, 14.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    02.11, 14.8, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.12, 14.8, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.84, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.85, 19.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 09.82, 18.1, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.80, 18.1, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.91, 18.7, 0.11' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    03.86, 18.6, 0.38' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.81, 16.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.81, 17.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.81, 18.7, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.81, 13.6, 3.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.80, 17.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.80, 15.8, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.88, 15.0, 0.9' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 2.5' tail in p.a. 162 deg);
    17.80, 12.7, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.80, 15.8, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.80, 15.2, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.87, 12.1, 1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 1.4' tail in p.a. 165 deg);
    11.82, 12.9, 10' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    11.80, 12.4, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.4' tail in p.a. 154 deg);
    11.79, 14.2, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.9' tail in p.a. 159 deg);
    11.79, 13.9, 3.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.86, 13.0, 1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 5' tail in p.a. 166 deg);
    09.86, 14.5, 0.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 4' tail in p.a. 169 deg);
    09.81, 13.4, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.81, 11.3, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 154 deg);
    09.80, 13.2, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 156 deg);
    08.84, 14.2, 1.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.82, 12.4, 5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.24° tail in p.a. 165 deg);
    07.82, 14.0, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.79, 10.8, 9.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.1' tail in p.a. 146 deg);
    07.79, 12.6, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 145 deg);
    07.79, 12.4, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 154 deg);
    06.82, 14.0, 1.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.79, 11.5, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.7' tail in p.a. 145 deg);
    06.78, 13.9, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.9' tail in p.a. 143 deg);
    06.78, 14.2, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.77, 12.7, 7.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.83, 13.6, 1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 3' tail in p.a. 151 deg);
    04.85, 12.2, 1' (R. Arnold, ASERO, Valdin, 0.303-m Newtonian + CCD);
    03.84, 18.8, 0.24' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + 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, 8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.78, 13.1, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.7' tail in p.a. 158 deg);
    02.86, 13.0, 2.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    02.83, 14.6, 0.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 3' tail in p.a. 150 deg);
    01.82, 14.3, 1' (P. Dekelver, 0.3-m Newtonian + 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 31.82, 13.6, 0.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 2.6' tail in p.a. 150 deg);
    30.87, 14.6, 0.5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 5' tail in p.a. 158 deg);
    30.84, 13.7, 1.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    30.79, 12.2, 5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    29.84, 13.1, 1.1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 4' tail in p.a. 149 deg);
    28.84, 12.5, 0.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 5' tail in p.a. 153 deg);
    27.80, 12.8, 2.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.38° tail in p.a. 159 deg);
    27.79, 12.4, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);


C/2024 G2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 07.84, 19.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 170 deg);


C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 24.96, 17.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 176 deg);
    17.03, 18.0, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 179 deg);
    12.05, 17.8, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 179 deg);
    09.03, 16.7, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD);
    09.02, 17.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.07, 17.3, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 174 deg);
    08.06, 17.2, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 168 deg);
    07.05, 17.5, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.09, 17.2, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.01, 17.6, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.02, 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
apr 24.70, 14.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    24.07, 15.0, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    22.68, 14.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    22.08, 15.1, 1.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.08, 14.3, 1.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    22.04, 15.8, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD);
    21.72, 14.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    21.07, 15.0, 0.3' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    19.83, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 236 deg);
    19.76, 14.4, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    17.05, 14.9, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.05, 13.8, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.04, 15.1, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.84, 14.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.84, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.74, 15.1, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    12.09, 14.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.09, 15.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.08, 15.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.06, 15.8, 0.25' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    09.10, 15.7, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.07, 14.5, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD);
    08.10, 14.7, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 210 deg);
    08.09, 15.0, 1.1' (M. Lošťák, 0.2-m Newtonian + CCD);
    08.08, 15.1, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    07.09, 15.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.09, 14.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.08, 15.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.07, 15.8, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.08, 15.9, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.45, 14.9, 0.8' (T. Lehmann, ChopinObs (remote), 0.08-m Refractor + CCD; 1.3' tail in p.a. 207 deg);


C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 07.86, 19.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 12.11, 16.9, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.11, 16.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.10, 16.9, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.12, 16.3, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.10, 16.1, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 161 deg);
    08.10, 16.3, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.09, 16.5, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 31.10, 16.4, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2025 A1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 16.87, 17.7, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD);
    14.87, 18.0, 0.2' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.4' tail in p.a. 166 deg);


C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.52, 14.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.53, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.65, 13.9, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.56, 14.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.54, 14.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.57, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.53, 14.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.55, 14.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.79, 14.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.82, 17.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 28 deg);
    07.90, 17.3, 0.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 19 deg);
    06.80, 18.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 33 deg);
    05.84, 18.1, 0.11' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);


C/2025 L1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 11.86, 16.8, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.59, 17.3, 1.6' (T. Yusa, 0.05-m Refractor + CCD);
    06.86, 16.6, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.99, 16.0, 1' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain + CCD);


C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 13.89, 19.9, 0.09' (N. Barnes, PAT, 0.3-m Newtonian + CCD);


C/2025 R3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 20.49, 4.6, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD);
    19.49, 4.7, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 10° tail in p.a. 282 deg);
    19.36, 4.5, 4' (M. Goiato, 20x100 Binoculars; 0.5° tail in p.a. 275 deg);
    19.35, 4.5, 5' (W. Souza, Atibaia SP, 20x80 Binoculars);
    19.18, 4.1, 5' (V. Díaz, Faro de Santa Pola, 5x50 Binoculars; 40' tail in p.a. 288 deg);
    19.09, 4.0, 5' (P. Guzik, 10x42.0 Binoculars; 0.5° tail in p.a. 280 deg);
    19.09, 4.4, 4' (M. Kwinta, Bieszczady, 15x70 Binoculars; 1.5° tail in p.a. 281 deg);
    18.49, 4.8, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 10° tail in p.a. 283 deg);
    18.35, 4.5, 4' (M. Goiato, 20x100 Binoculars; 2° tail in p.a. 270 deg);
    18.16, 4.5, 5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 2° tail in p.a. 280 deg);
    18.14, 4.4, 5' (G. Pappa, Pedara,Sicily,Italy, 0.05-m Camera lens + CCD; 3° tail);
    18.12, 4.3, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.5° tail in p.a. 296 deg);
    18.10, 4.8, 2.5' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 1.8° tail in p.a. 285 deg);
    18.09, 4.5, 5' (P. Guzik, 10x42.0 Binoculars; 1.5° tail in p.a. 285 deg);
    18.09, 4.5, 6' (M. Kwinta, Bieszczady, 15x70 Binoculars; 2.55° tail in p.a. 285 deg);
    17.49, 4.5, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 10° tail in p.a. 283 deg);
    17.15, 4.6, 5' (G. Pappa, Pedara,Sicily,Italy, 0.05-m Camera lens + CCD; 1° tail);
    17.13, 5.4, 2.3' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 1.6° tail in p.a. 285 deg);
    17.11, 4.2, 2.9' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.7° tail in p.a. 284 deg);
    16.79, 4.6, 2.3' (O. Miyazaki, 18x50 Binoculars; 1.8° tail in p.a. 290 deg);
    16.79, 4.8, -- (S. Yoshida, 0.07-m Refractor);
    16.49, 4.9, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 10° tail in p.a. 285 deg);
    16.41, 4.5, 7' (B. Adams, Zumbrota, MN, 10x50 Binoculars; 6° tail in p.a. 286 deg);
    16.22, 4.6, 8' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars; 4° tail in p.a. 285 deg);
    16.21, 4.5, 8' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 15x70 Binoculars; 4.5° tail in p.a. 285 deg);
    16.17, 4.4, 5' (J. Gonzalez Suarez, Alto de Renedo de Valderaduey, 1030 m, Spain, Naked eye; 1.5° tail in p.a. 290 deg);
    16.16, 4.6, 8' (J. Gonzalez Suarez, 10x50 Binoculars; 6° tail in p.a. 290 deg);
    16.16, 4.3, 8' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 5° tail in p.a. 285 deg);
    16.15, 4.7, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars; 3° tail in p.a. 290 deg);
    15.87, 4.8, 5' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    15.51, 7.2, 2.1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD; 24.4' tail);
    15.50, 5.2, 8.4' (C. Hergenrother, Tanque Verde, 0.03-m Refractor + CCD; 3.14° tail in p.a. 286 deg);
    15.50, 6.1, 5.5' (C. Hergenrother, Tanque Verde, 0.03-m Refractor + CCD);
    15.49, 4.8, -- (C. Hergenrother, 2x12.0 Binoculars);
    15.49, 5.1, 6' (C. Hergenrother, 10x50 Binoculars; 2.5° tail in p.a. 285 deg);
    15.48, 5.1, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 5° tail in p.a. 285 deg);
    15.17, 4.7, 6' (C. Labordena, Benlloch, 11x80 Binoculars; 80' tail);
    15.16, 4.6, 8' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 3° tail in p.a. 285 deg);
    15.13, 4.8, 4' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    15.12, 4.7, 3' (M. Deconinck, Fernelmont, 40x130 Binoculars; 30' tail in p.a. 270 deg);
    15.12, 4.7, 3' (M. Deconinck, Fernelmont, 25x130 Binoculars; 45' tail in p.a. 270 deg);
    15.11, 5.2, 4.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.03-m Refractor + CCD; 2.66° tail in p.a. 286 deg);
    15.11, 4.9, 3' (U. Pilz, 16x70 Binoculars; 7° tail in p.a. 280 deg);
    15.11, 5.3, 6.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 1° tail in p.a. 289 deg);
    15.11, 4.8, 3' (M. Deconinck, Fernelmont, 25x130 Binoculars; 30' tail in p.a. 290 deg);
    14.79, 5.2, 3.3' (C. Wyatt, 10x50 Binoculars);
    14.19, 4.6, 4' (M. Hamidi, Erfoud , Morocco, 10x50 Binoculars; 2° tail);
    14.18, 4.1, 8' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 2.5° tail in p.a. 287 deg);
    14.16, 5.2, 6.02' (N. James, 0.072-m Refractor + CCD);
    14.16, 4.7, 7' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD; 2° tail in p.a. 281 deg);
    14.15, 4.8, -- (S. Brown, North Yorkshire, UK, 8x40 Binoculars);
    14.14, 5.1, 5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 4° tail in p.a. 281 deg);
    14.13, 5.1, 4' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    14.13, 5.3, 12' (M. Collins, Everton, 10x40 Binoculars);
    14.08, 5.1, 4' (N. Virnina, Odesa, Ukraine, 20x50 Binoculars);
    14.06, 5.0, 4' (K. Alburaidi, Bukayriyah , Al-Qassim, 10x50 Binoculars; 30' tail in p.a. 280 deg);
    13.90, 5.2, 8' (T. Thaluang, SSTAC, Pak Chong (MPC O58), 0.26-m Newtonian + CCD);
    13.22, 4.9, 8' (J. Cerny, 0.001-m Naked eye; 4° tail in p.a. 284 deg);
    13.22, 5.0, 8' (J. Cerny, 7x50 Binoculars; 6.2° tail in p.a. 284 deg);
    13.13, 5.2, 12' (M. Collins, Everton, 10x40 Binoculars);
    13.11, <5.0, 4' (A. Tuznik, Ożarów, Polska, Nonex50 Binoculars; 1.5° tail);
    13.10, 5.1, 4' (P. Guzik, 10x42.0 Binoculars; 0.4° tail in p.a. 285 deg);
    12.90, 5.2, 9.2' (T. Thaluang, SSTAC, Pak Chong (MPC O58), 0.26-m Newtonian + CCD);
    12.79, 5.5, 6.4' (T. Yusa, 0.05-m Refractor + CCD; 0.4° tail in p.a. 291 deg);
    12.49, 5.7, 10' (J. Chambó Bris, Utah Desert Observatory, USA, 0.106-m Refractor + CCD; 3.5° tail in p.a. 285 deg);
    12.49, 6.4, 6.1' (C. Hergenrother, Tanque Verde, 0.03-m Refractor + CCD; 3.24° tail in p.a. 286 deg);
    12.49, 5.3, 5' (C. Hergenrother, 10x50 Binoculars; 2.5° tail in p.a. 285 deg);
    12.49, 5.5, 8.4' (C. Hergenrother, Tanque Verde, 0.03-m Refractor + CCD; 3.15° tail in p.a. 286 deg);
    12.47, 5.3, 10' (M. Olason, Arizona, 0.03-m Refractor + CCD; 5° tail in p.a. 285 deg);
    12.47, 5.4, 7.5' (M. Olason, Arizona, 0.03-m Refractor + CCD; 5° tail in p.a. 285 deg);
    12.21, 4.4, 4' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 32' tail in p.a. 286 deg);
    12.18, 4.7, 8' (M. Reszelski, Szamotuly, Poland, 15x70 Binoculars; 0.5° tail);
    12.16, 5.5, 6.02' (N. James, 0.051-m Refractor + CCD);
    12.13, <5.3, 4' (A. Tuznik, Ożarów, Polska, Nonex50 Binoculars; 1° tail);
    12.12, 5.8, 11.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5° tail in p.a. 287 deg);
    12.11, 5.1, 3.3' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 1.9° tail in p.a. 285 deg);
    12.11, 5.4, -- (Ł. Sanocki, Kryspinów, Poland, 10x50 Binoculars);
    12.11, 4.9, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.6° tail in p.a. 287 deg);
    12.11, 6.1, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8° tail in p.a. 287 deg);
    12.10, 5.5, 3' (M. Filipek, Jerzmanowice, 7x50 Binoculars; 15' tail in p.a. 285 deg);
    12.10, 5.2, 3' (M. Kwinta, 15x70 Binoculars; 25' tail in p.a. 288 deg);
    12.09, 5.1, 3' (E. Banach, 12x60 Binoculars; 0.2° tail in p.a. 290 deg);
    12.09, 5.0, 5' (P. Guzik, Naked eye);
    12.08, 5.0, 4' (P. Guzik, 10x42.0 Binoculars; 2.5° tail in p.a. 290 deg);
    12.07, 4.4, 4.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.6° tail in p.a. 287 deg);
    11.50, 5.4, 9.1' (C. Hergenrother, 0.03-m Refractor + CCD; 2.94° tail in p.a. 286 deg);
    11.23, 5.4, 7.1' (M. Mašek, 0.07-m Refractor; 1.3° tail in p.a. 288 deg);
    11.23, 5.3, 8' (J. Cerny, 7x50 Binoculars; 3.5° tail in p.a. 289 deg);
    11.23, 5.1, 8' (J. Cerny, 0.001-m Naked eye);
    11.12, 5.6, 6.5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.03-m Refractor + CCD; 97.4' tail in p.a. 290 deg);
    11.09, 5.2, 4' (P. Guzik, 10x42.0 Binoculars; 1° tail in p.a. 290 deg);
    11.09, 5.5, 4' (C. Harder, Jeersdorf f, 15x70 Binoculars);
    10.90, 5.7, 6.9' (T. Thaluang, MPC-O58, 0.26-m Newtonian + CCD);
    10.42, 5.2, 1' (V. Italo, Warm Springs, GA, 10x40 Binoculars);
    10.19, 4.8, 8' (M. Reszelski, Szamotuly, Poland, 15x70 Binoculars; 0.5° tail);
    10.16, 5.1, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    10.14, 6.6, 5' (D. Buczynski, Tarbatness Observatory, Portmahomack, 0.35-m Schmidt-Cassegrain + CCD);
    10.11, 5.1, 4' (B. Granslo, Bjerke, Oslo, Norway, 10x42.0 Binoculars);
    10.09, 5.5, 2' (M. Biely, 20x80 Binoculars; 0.4° tail in p.a. 270 deg);
    09.50, 5.9, 7.5' (M. Olason, Arizona, 0.03-m Refractor + CCD; 3.3° tail in p.a. 291 deg);
    09.19, 4.9, 8' (M. Reszelski, Szamotuly, Poland, 15x70 Binoculars; 0.4° tail);
    09.14, 6.9, 6' (E. Bryssinck, 0.4-m Newtonian + CCD; 21.9' tail in p.a. 290 deg);
    09.14, 5.4, 2.5' (A. Kammerer, Karlsruhe, Germany, 0.125-m Schmidt-Cassegrain; 0.2° tail in p.a. 295 deg);
    09.13, 5.5, 4' (P. De Schrijver, BEERT, 15x80 Binoculars);
    08.90, 5.7, 6.6' (T. Thaluang, MPC-O58, 0.26-m Newtonian + CCD);
    08.79, 5.6, 2.8' (O. Miyazaki, 18x50 Binoculars; 1° tail in p.a. 290 deg);
    08.79, 6.0, 6' (T. Yusa, 0.05-m Refractor + CCD; 0.6° tail in p.a. 291 deg);
    08.19, 5.2, 8' (M. Reszelski, Jastrowo, Poland, 15x70 Binoculars);
    08.18, 5.5, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 1.1° tail in p.a. 290 deg);
    08.15, 7.1, 4.8' (E. Bryssinck, 0.4-m Newtonian + CCD; 22.3' tail in p.a. 292 deg);
    08.15, 5.6, 4' (G. van Buitenen, Dordrecht, Sterrenburg (G06), 8x42.0 Binoculars);
    08.15, 5.6, 3' (M. Deconinck, Fernelmont, 10x50 Binoculars);
    08.14, 5.4, 3' (M. Deconinck, Fernelmont, 0.1-m Refractor; 6' tail in p.a. 330 deg);
    08.14, 5.6, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    08.14, 5.6, 2' (A. Kammerer, Karlsruhe, Germany, 0.125-m Schmidt-Cassegrain; 0.3° tail in p.a. 292 deg);
    08.13, 5.9, 4.6' (M. Collins, Everton, 0.103-m Refractor; 13' tail in p.a. 279 deg);
    08.13, 6.0, 8.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.04° tail in p.a. 296 deg);
    08.13, 6.3, 7.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 1.22° tail in p.a. 291 deg);
    08.13, 7.2, 5.9' (M. Lošťák, 0.2-m Newtonian + CCD);
    08.13, 6.1, 5.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.03-m Refractor + CCD; 66.2' tail in p.a. 290 deg);
    08.12, 5.7, 2.9' (V. Kasten, 15x50 Binoculars);
    08.12, 5.9, 4' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    08.11, 5.6, 4' (M. Buechner, München, Germany, 27x120 Binoculars; 1° tail in p.a. 290 deg);
    08.10, 5.5, 4' (B. Granslo, Bjerke, Oslo, Norway, 10x42.0 Binoculars);
    08.10, 7.0, 12' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 10.5' tail in p.a. 292 deg);
    08.00, 6.3, 7.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 1.22° tail in p.a. 291 deg);
    07.90, 7.5, 5.5' (T. Thaluang, MPC-O58, Pak Chong, Thailand, 0.26-m Newtonian + CCD; 19.8' tail in p.a. 290 deg);
    07.82, 5.6, -- (K. Yoshimoto, 8x42.0 Binoculars);
    07.81, 7.1, 5.8' (K. Yoshimoto, 0.065-m Camera lens + CCD);
    07.81, 6.1, 5.8' (K. Yoshimoto, 0.065-m Camera lens + CCD; 5° tail in p.a. 290 deg);
    07.81, 6.7, 5.8' (K. Yoshimoto, 0.065-m Camera lens + CCD);
    07.80, 5.7, 3' (Y. Nagai, 20x100 Binoculars; 0.5° tail in p.a. 285 deg);
    07.79, 5.5, -- (R. Aikawa, 7x50 Binoculars);
    07.23, 11.5, 0.2' (L. Bracero, Ponce Puerto Rico, 0.03-m Camera lens + CCD; 0.5° tail in p.a. 250 deg);
    07.17, 5.7, 5' (J. Trigo-Rodríguez, Montseny Astronomical Observatory B06, 0.05-m "small telescopes" with aperture in range 4-10 inches + CCD; 50' tail in p.a. 290 deg);
    07.16, 6.8, 5.4' (P. Dekelver, 0.3-m Newtonian + CCD; 27.8' tail in p.a. 290 deg);
    07.15, 5.8, 4' (G. van Buitenen, Dordrecht, Sterrenburg (G06), 8x42.0 Binoculars);
    07.14, 6.1, 3.5' (M. Collins, Everton, 0.103-m Refractor; 6' tail in p.a. 291 deg);
    07.13, 5.0, 2.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.9° tail in p.a. 290 deg);
    07.13, 6.6, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1° tail in p.a. 290 deg);
    07.13, 6.2, 10' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3° tail in p.a. 292 deg);
    07.12, 5.6, 3.5' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 2° tail in p.a. 292 deg);
    07.12, 6.8, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7° tail in p.a. 291 deg);
    07.12, 6.8, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2° tail in p.a. 291 deg);
    07.12, 5.8, 6.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1° tail in p.a. 293 deg);
    07.12, 5.9, 4' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    07.12, 5.8, 3.5' (M. Kwinta, 15x70 Binoculars; 35' tail in p.a. 290 deg);
    07.11, 5.8, 2' (U. Pilz, 16x70 Binoculars; 0.07° tail in p.a. 280 deg);
    07.11, 5.8, 4' (B. Granslo, Breisjoen, Lillomarka, Oslo, Norway, 10x42.0 Binoculars);
    07.11, 5.9, 3.5' (C. Harder, Jeersdorf h, 15x70 Binoculars);
    07.10, 5.8, 4' (P. Guzik, 10x42.0 Binoculars; 0.6° tail in p.a. 290 deg);
    07.08, 5.5, 7' (T. Sciezor, Cracow, 10x50 Binoculars);
    06.76, 11.5, -- (L. Bracero, Ponce Puerto Rico, 0.03-m Camera lens + CCD; 0.5° tail in p.a. 250 deg);
    06.15, 6.0, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    06.15, 6.7, 6.7' (P. Dekelver, 0.3-m Newtonian + CCD; 27' tail in p.a. 293 deg);
    06.13, 6.0, 4' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    06.11, 6.1, 3' (C. Harder, Jeersdorf f, 0.252-m Newtonian; 11' tail in p.a. 300 deg);
    05.81, 6.1, 4.9' (K. Yoshimoto, 0.065-m Camera lens + CCD; 3° tail in p.a. 290 deg);
    05.44, 6.0, 2' (D. Zubenel, De Soto, Kansas., 0.15-m Newtonian);
    05.34, 6.0, 3' (W. Souza, 10x42.0 Binoculars);
    05.17, 6.0, 4' (C. Labordena, La Serratella, 11x80 Binoculars; 20' tail);
    05.17, 8.1, 1.3' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    05.14, 6.6, 2.3' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD; 1.1° tail in p.a. 291 deg);
    05.13, 6.2, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.6° tail in p.a. 291 deg);
    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);
    05.11, 6.3, 3' (M. Kwinta, 15x70 Binoculars);
    04.34, 6.1, 2.5' (M. Goiato, 20x100 Binoculars; 0.5° tail in p.a. 280 deg);
    04.19, 5.9, 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. 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);
    03.17, 5.9, 5.7' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1.1° tail in p.a. 291 deg);
    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, 15x70 Binoculars);
    02.19, 6.5, 7' (M. Reszelski, Jastrowo, Poland, 15x70 Binoculars);
    02.15, 7.2, 5.1' (P. Dekelver, 0.3-m Newtonian + CCD; 26.3' tail in p.a. 293 deg);
    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);
    31.16, 7.5, 5.1' (P. Dekelver, 0.3-m Newtonian + CCD; 27.4' tail in p.a. 297 deg);
    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, 2' (J. Shanklin, 20x80 Binoculars);
    29.17, 7.3, 4.89' (N. James, 0.072-m Refractor + CCD);
    29.17, 7.3, 3.2' (S. Getliffe, 0.09-m Refractor; 0.09° tail in p.a. 58 deg);
    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);


C/2025 V2 (Rankin)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 11.83, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.52, 17.9, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    07.85, 18.9, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.96, 18.2, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


C/2025 Y1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.88, 16.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.88, 17.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.86, 17.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.53, 16.6, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.96, 17.2, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.96, 16.4, 0.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.55, 16.6, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.55, 17.3, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    20.88, 16.8, 0.23' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    19.55, 16.9, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.01, 17.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.01, 16.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.01, 17.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.93, 16.7, 0.47' (M. Meyer, 0.05-m Refractor + CCD);
    16.57, 16.9, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.56, 16.8, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.59, 16.8, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.55, 16.7, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.94, 17.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.94, 16.4, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.94, 17.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.99, 17.0, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.56, 16.7, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.98, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.97, 16.8, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    07.85, 17.0, 0.3' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.85, 17.3, 0.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    07.02, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.86, 17.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.06, 17.0, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
mar 30.99, 17.1, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2026 A1 (MAPS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 04.47, 0.6, 11.4' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.47, 0.5, 11.4' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.46, 0.6, 11.4' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.43, 0.5, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.41, 0.3, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.40, 0.2, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.39, 0.1, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.38, 0.0, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.38, -0.1, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.37, -0.2, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.36, -0.4, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.35, -0.7, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.34, -0.8, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.33, -0.9, 19' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.32, -1.0, 22.8' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.31, -1.0, 22.8' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.30, -1.1, 22.8' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.29, -1.0, 22.8' (M. Paradowski, SOHO, 0.02-m Coronagraph + CCD);
    04.15, 1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 3.11° tail in p.a. 99 deg);
    04.14, 1.4, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 3.11° tail in p.a. 99 deg);
    04.13, 1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 3.11° tail in p.a. 99 deg);
    04.12, 1.4, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.11, 1.2, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.10, 1.5, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.10, 1.2, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.09, 1.2, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.08, 1.3, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.07, 1.5, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.06, 1.3, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.04, 1.5, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.03, 1.6, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.02, 1.4, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.01, 1.6, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.00, 1.5, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    04.00, 1.7, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2° tail in p.a. 99 deg);
    03.99, 1.6, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2° tail in p.a. 99 deg);
    03.98, 1.8, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2° tail in p.a. 99 deg);
    03.97, 1.5, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.96, 1.7, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.95, 1.6, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.94, 1.7, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.93, 1.8, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.92, 1.8, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.91, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.90, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.90, 1.8, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.89, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.88, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.86, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.85, 1.9, 22' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.85, 1.9, 18' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.84, 2.1, 18' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.83, 2.0, 18' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.82, 2.1, 18' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.81, 2.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.80, 2.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.80, 2.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.79, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.49° tail in p.a. 99 deg);
    03.77, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.87° tail in p.a. 99 deg);
    03.76, 2.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.87° tail in p.a. 99 deg);
    03.75, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.87° tail in p.a. 99 deg);
    03.75, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.87° tail in p.a. 99 deg);
    03.74, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.87° tail in p.a. 99 deg);
    03.73, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.72, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.71, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.70, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.70, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.69, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.68, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.67, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.66, 2.3, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 2.33° tail in p.a. 99 deg);
    03.65, 2.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.55° tail in p.a. 99 deg);
    03.65, 2.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.55° tail in p.a. 99 deg);
    03.64, 2.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.63, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.62, 2.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.61, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.60, 2.4, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.60, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.59, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.58, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.57, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.56, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.54, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.53, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.52, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.51, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.50, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.50, 2.5, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.49, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.84° tail in p.a. 99 deg);
    03.47, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.77° tail in p.a. 99 deg);
    03.46, 2.6, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.77° tail in p.a. 99 deg);
    03.44, 2.7, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.41, 2.7, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.40, 2.7, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.40, 2.7, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.38, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.36, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.35, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.34, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.32, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.31, 2.9, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.30, 2.8, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.30, 2.9, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.29, 2.9, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.28, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.27, 2.9, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.25, 2.9, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.24, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.23, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.22, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.21, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.20, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.20, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.19, 3.1, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.18, 3.0, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.15, 3.1, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.14, 3.2, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    03.13, 3.1, 14.9' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD; 1.48° tail in p.a. 97 deg);
    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);


C/2026 A2 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 09.95, 18.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.01, 18.1, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD; 8.5" tail in p.a. 251 deg);


C/2026 B2 (Sun-Gao)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 07.11, 18.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2026 B3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 06.85, 19.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2026 C1 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
apr 22.90, 18.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.90, 17.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.89, 19.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.91, 18.8, 0.5' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    18.99, 18.2, 0.4' (H. Smith, 0.12-m Newtonian + CCD);
    17.11, 17.0, 0.6' (F. Carrasco Lopez, Observatorio Villuercas-Navezuelas (MPC R49), 0.25-m Newtonian + CCD);
    17.00, 18.6, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.91, 18.3, 0.5' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    10.95, 18.3, 0.15' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    10.91, 18.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.91, 18.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.90, 19.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.93, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.91, 18.3, 0.15' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    08.96, 18.1, 0.2' (E. Bryssinck, 0.4-m Newtonian + CCD);
    06.85, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.91, 18.0, 0.15' (À. Bueno, AstroGRN Trevinca, 0.12-m Refractor + CCD);
    03.99, 18.9, 0.14' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    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);