3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 30.50, 14.3, 1' (T. Yusa, 0.05-m Refractor + CCD; 2.2' tail in p.a. 97 deg);
    28.83, 15.3, 1' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain + CCD; 2' tail);
    28.65, 13.6, 1.4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 1.9' tail in p.a. 100 deg);
    27.88, 13.7, 0.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.9' tail in p.a. 90 deg);
    27.78, 13.8, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 99 deg);
    27.78, 12.4, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 99 deg);
    27.78, 13.8, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 98 deg);
    27.65, 13.1, 1.4' (A. Pearce, Geordie Bay, Rottnest, W. Australia, 0.05-m Refractor + CCD; 1.5' tail in p.a. 101 deg);
    27.62, 13.3, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.8' tail in p.a. 96 deg);
    27.57, 13.5, 0.8' (Y. Nagai, 0.05-m Refractor + CCD);
    27.55, 13.7, 1.2' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    27.51, 13.8, 1' (T. Yusa, 0.05-m Refractor + CCD);
    26.95, 12.6, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 95 deg);
    26.95, 13.8, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 96 deg);
    26.94, 13.9, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 99 deg);
    26.68, 12.8, 1.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.8' tail in p.a. 96 deg);
    26.05, 12.8, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    25.94, 15.6, 0.51' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 2.8' tail in p.a. 97 deg);
    25.82, 13.4, 1.2' (P. Dekelver, 0.3-m Newtonian + CCD; 2.4' tail in p.a. 101 deg);
    25.65, 12.6, 1.2' (C. Wyatt, 0.4-m Newtonian);
    24.85, 15.6, 0.51' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 2.3' tail in p.a. 97 deg);
    24.76, 13.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.65, 13.1, 1.3' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 3' tail in p.a. 102 deg);
    24.53, 13.8, 1.2' (T. Yusa, 0.05-m Refractor + CCD; 1.2' tail in p.a. 93 deg);
    24.02, 12.7, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.80, 14.4, 1' (R. Arnold, 0.2-m Schmidt-Cassegrain + CCD; 3' tail);
    23.65, 13.2, 1.5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    23.55, 13.1, 1.1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 2.4' tail in p.a. 100 deg);
    23.47, 13.6, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 1.6' tail in p.a. 100 deg);
    23.12, 12.8, 1.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.02, 12.7, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    22.88, 12.7, 2.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.84, 13.3, 1.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 96 deg);
    22.68, 13.4, 0.8' (Y. Nagai, 0.05-m Refractor + CCD; 1.2' tail in p.a. 95 deg);
    22.55, 13.1, 1' (O. Miyazaki, 0.32-m Newtonian);
    22.02, 12.9, 0.9' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2' tail in p.a. 76 deg);
    21.88, 13.5, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 2.4' tail in p.a. 98 deg);
    21.80, 12.7, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.80, 13.0, 0.3' (W. Hasubick, 0.44-m Newtonian);
    21.79, 12.5, 2.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.6' tail in p.a. 98 deg);
    21.78, 13.5, 2.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 98 deg);
    21.78, 13.2, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 99 deg);
    21.65, 13.0, 1.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2' tail in p.a. 99 deg);
    21.63, 12.9, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 98 deg);
    21.63, 13.0, 1.2' (C. Wyatt, 0.4-m Newtonian);
    20.95, 12.6, 1.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    20.84, 13.2, 1.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 2.2' tail in p.a. 99 deg);
    20.81, 13.2, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.7' tail in p.a. 96 deg);
    20.80, 12.7, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    20.79, 13.2, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 96 deg);
    20.79, 12.0, 3.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 98 deg);
    20.78, 13.3, 2.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 98 deg);
    20.70, 12.7, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5' tail in p.a. 93 deg);
    20.68, 12.8, 1.4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2' tail in p.a. 107 deg);
    20.53, 12.9, 1.5' (T. Yusa, 0.05-m Refractor + CCD; 2.1' tail in p.a. 98 deg);
    20.47, 12.8, 1.2' (C. Wyatt, 0.4-m Newtonian);
    20.13, 12.8, 1' (A. Kammerer, Teufelsmuehle (Black Forest), Germany, 0.397-m Newtonian);
    20.04, 14.6, 0.31' (A. Garcia Sanchez, Rio Cofio, Robledo de Chavela (MPC Z03), 0.25-m Schmidt-Cassegrain + CCD);
    19.97, 12.5, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 5.7' tail in p.a. 98 deg);
    19.97, 12.3, 3.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.35° tail in p.a. 99 deg);
    19.92, 12.9, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2' tail in p.a. 101 deg);
    19.87, 13.2, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 96 deg);
    19.80, 12.8, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2' tail in p.a. 98 deg);
    19.80, 11.7, 3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.7' tail in p.a. 99 deg);
    19.80, 12.9, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 100 deg);
    19.78, 13.0, 2.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 103 deg);
    19.71, 12.6, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.3' tail in p.a. 97 deg);
    19.67, 12.9, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2' tail in p.a. 102 deg);
    19.13, 13.1, 1.6' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    19.04, 14.6, 0.31' (A. Garcia Sanchez, Rio Cofio, Robledo de Chavela (MPC Z03), 0.25-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 105 deg);
    19.02, 12.1, 4.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.32° tail in p.a. 99 deg);
    18.97, 13.3, 0.74' (S. Shurpakov, 0.15-m Volosov-Newtonian + CCD; 2.6' tail in p.a. 95 deg);
    18.95, 13.5, 0.5' (S. Shurpakov, 0.15-m Volosov-Newtonian + CCD; 3.5' tail in p.a. 97 deg);
    18.95, 12.1, 4.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.28° tail in p.a. 99 deg);
    18.95, 12.6, 3' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.92, 12.4, 2.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.92, 12.8, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.89, 12.1, 2.2' (E. Bryssinck, 0.4-m Newtonian + CCD; 4.3' tail in p.a. 100 deg);
    18.88, 13.1, 0.8' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    18.87, 12.6, 0.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2' tail in p.a. 107 deg);
    18.82, 12.9, 1.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 2.2' tail in p.a. 101 deg);
    18.78, 12.7, 3.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 101 deg);
    18.78, 11.8, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 99 deg);
    18.78, 13.2, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 98 deg);
    18.67, 13.0, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 3.1' tail in p.a. 105 deg);
    18.52, 13.3, 1.4' (T. Yusa, 0.05-m Refractor + CCD; 2.2' tail in p.a. 100 deg);
    18.15, 12.8, 3.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.7' tail in p.a. 100 deg);
    18.04, 13.2, 0.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 80" tail in p.a. 81 deg);
    17.96, 12.4, 2' (P. Dekelver, 0.3-m Newtonian + CCD; 5.6' tail in p.a. 102 deg);
    17.92, 12.8, 0.8' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    17.84, 12.5, 1.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 2.9' tail in p.a. 97 deg);
    17.79, 13.3, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 97 deg);
    17.79, 12.1, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3' tail in p.a. 97 deg);
    17.78, 13.0, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 97 deg);
    17.64, 12.8, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.1' tail in p.a. 104 deg);
    17.57, 12.5, 1.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 4.9' tail in p.a. 101 deg);
    17.08, 12.1, 4.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.22° tail in p.a. 100 deg);
    17.07, 12.9, 1.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 1.8' tail in p.a. 104 deg);
    16.92, 14.2, 0.76' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 3.3' tail in p.a. 101 deg);
    16.90, 12.2, 1.4' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    16.57, 12.9, 1.6' (O. Miyazaki, 0.32-m Newtonian);
    16.54, 12.7, 1.6' (T. Yusa, 0.05-m Refractor + CCD; 2' tail in p.a. 101 deg);
    16.52, 13.2, 1.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.3' tail in p.a. 102 deg);
    16.52, 14.3, 0.8' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    16.52, 12.3, 1.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.3' tail in p.a. 102 deg);
    15.91, 13.7, 1' (D. Heggie, Edinburgh, Scotland, 0.05-m Refractor + CCD; 0.9' tail in p.a. 99 deg);
    15.65, 12.8, 1.4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.6' tail in p.a. 106 deg);
    15.62, 13.1, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    15.45, 12.1, 4' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.21° tail in p.a. 100 deg);
    14.81, 12.3, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    14.74, 12.6, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.1' tail in p.a. 100 deg);
    14.65, 12.8, 1.4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.2' tail in p.a. 106 deg);
    14.55, 12.7, 1.2' (Y. Nagai, 0.05-m Refractor + CCD; 1.5' tail in p.a. 95 deg);
    14.00, 14.0, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    13.99, 14.0, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    13.99, 14.3, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    13.93, 14.7, 0.54' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 3.3' tail in p.a. 98 deg);
    13.86, 12.6, 0.8' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD; 2.5' tail in p.a. 101 deg);
    13.80, 12.9, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    13.65, 12.7, 1.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.7' tail in p.a. 105 deg);
    13.63, 12.8, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.8' tail in p.a. 101 deg);
    12.90, 12.4, 0.7' (D. Heggie, Edinburgh, Scotland, 0.05-m Refractor + CCD; 1.9' tail in p.a. 107 deg);
    12.66, 12.9, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.5' tail in p.a. 108 deg);
    12.65, 12.7, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.3' tail in p.a. 102 deg);
    11.96, 12.4, 2.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.94, 12.0, 1.6' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    11.90, 11.8, 5.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.21° tail in p.a. 101 deg);
    11.90, 12.7, 1.3' (T. Csorgei, PalantirII (MPC 247), 0.303-m Newtonian + CCD; 3.2' tail in p.a. 99 deg);
    11.60, 12.2, 1.2' (Y. Nagai, 0.05-m Refractor + CCD);
    11.04, 12.2, 2' (P. Dekelver, 0.3-m Newtonian + CCD; 4.9' tail in p.a. 100 deg);
    10.96, 12.0, 2.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.87, 11.7, 1.9' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 2.5' tail in p.a. 94 deg);
    10.87, 12.5, 1.2' (C. Harder, Jeersdorf h, 0.35-m Newtonian);
    10.72, 12.7, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.3' tail in p.a. 101 deg);
    10.66, 12.6, 1.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.3' tail in p.a. 101 deg);
    10.31, 12.0, 4' (W. Souza, 0.05-m Refractor + CCD);
    10.20, 12.0, 2' (M. Olason, Arizona, 0.05-m Refractor + CCD; 5' tail in p.a. 107 deg);
    10.02, 12.1, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    09.85, 13.0, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 5' tail in p.a. 99 deg);
    09.57, 12.8, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    09.55, 12.2, 2' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD; 3' tail in p.a. 107 deg);
    08.82, 12.4, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 4.1' tail in p.a. 103 deg);
    08.20, 12.3, 1.6' (P. Dekelver, 0.3-m Newtonian + CCD; 3' tail in p.a. 97 deg);
    08.10, 14.3, 0.31' (A. Garcia Sanchez, Rio Cofio, Robledo de Chavela (MPC Z03), 0.25-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 104 deg);
    08.06, 12.6, 1' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 3' tail);
    08.04, 11.8, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    08.00, 13.6, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    07.99, 13.5, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    07.98, 13.8, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    07.80, 11.8, 1.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 102 deg);
    06.84, 12.2, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD; 1.8' tail in p.a. 100 deg);
    04.96, 11.6, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 7.5' tail in p.a. 112 deg);
    04.64, 11.8, 1.5' (Y. Nagai, 0.05-m Refractor + CCD);
    04.52, 12.6, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    04.30, 11.6, 4' (W. Souza, 0.05-m Refractor + CCD);
    04.06, 10.3, 1.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    03.71, 11.8, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 100 deg);
    03.57, 13.1, 1.1' (T. Yusa, 0.05-m Refractor + CCD);
    03.00, 13.8, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    03.00, 13.3, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    02.97, 11.3, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    02.85, 12.4, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    01.70, 12.3, 1.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.1' tail in p.a. 105 deg);
    01.68, 12.0, 2.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.8' tail in p.a. 103 deg);


7P/Pons-Winnecke
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 20.12, 20.9, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);


24P/Schaumasse
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.84, 9.8, 5' (O. Miyazaki, 0.32-m Newtonian);
    29.83, 10.1, 3.7' (Y. Nagai, 0.05-m Refractor + CCD);
    29.80, 9.8, 9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 11.6' tail in p.a. 287 deg);
    29.32, 9.8, 6.7' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD);
    28.81, 9.7, 7' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    28.14, 9.4, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    27.84, 10.1, 3' (O. Miyazaki, 0.32-m Newtonian);
    27.80, 9.9, 7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.77, 9.6, 6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.31, 9.7, 4.3' (B. Gilmore, Cismont Ridge (MPC 247), 0.13-m Newtonian + CCD);
    27.27, 9.6, 3' (J. de Souza Aguiar, 0.3-m Newtonian);
    26.77, 9.4, 6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    26.28, 9.6, 3' (J. de Souza Aguiar, 0.3-m Newtonian);
    26.16, 9.7, 6.4' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    25.72, 9.2, 9.6' (T. Yusa, 0.05-m Refractor + CCD; 5.9' tail in p.a. 293 deg);
    25.67, 8.7, 7' (C. Wyatt, 15x70 Binoculars);
    25.14, 9.3, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    24.82, 9.7, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.9' tail in p.a. 292 deg);
    24.73, 10.4, 3.7' (Y. Nagai, 0.05-m Refractor + CCD);
    24.28, 9.5, 3' (J. de Souza Aguiar, 0.3-m Newtonian);
    24.27, 9.1, 8' (M. Goiato, 20x100 Binoculars);
    24.14, 9.1, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    23.77, 9.1, 5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    23.28, 9.6, 4' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.16, 10.2, 4' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.72, 10.3, 3.8' (Y. Nagai, 0.05-m Refractor + CCD);
    22.19, 8.7, 6' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    22.18, 9.3, 6.5' (M. Meyer, 0.152-m Refractor);
    22.14, 9.5, 6.5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    22.12, 9.8, 6.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.06, 8.9, 5.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    22.03, 10.1, 4' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.01, 10.5, 1.2' (T. Sciezor, C, 0.05-m Camera lens + CCD);
    21.81, 9.6, 5' (R. Aikawa, 0.203-m Schmidt-Cassegrain);
    21.80, 9.7, 6' (O. Miyazaki, 0.32-m Newtonian);
    21.21, 8.8, 5.5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    21.20, 10.0, 3.2' (W. Hasubick, 0.44-m Newtonian);
    21.11, 9.9, 5.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.08° tail in p.a. 301 deg);
    21.07, 9.7, 4.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    21.04, 10.4, 2.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    20.79, 9.5, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.22, 8.9, 21' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.35° tail in p.a. 292 deg);
    20.20, 9.2, 16' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    20.18, 8.9, 20' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.87° tail in p.a. 293 deg);
    20.16, 9.0, 5.5' (A. Kammerer, Teufelsmuehle (Black Forest), Germany, 0.397-m Newtonian);
    20.14, 9.6, 5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    20.13, 9.4, 4' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    20.13, 8.9, 21' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.69° tail in p.a. 295 deg);
    20.08, 10.6, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    20.07, 9.6, 5.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    20.04, 11.0, 2.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.84, 10.6, 3.2' (O. Miyazaki, 0.32-m Newtonian);
    19.55, 8.7, 20' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.17° tail in p.a. 297 deg);
    19.50, 9.0, 18' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.38° tail in p.a. 294 deg);
    19.39, 9.3, 8.8' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    19.38, 9.1, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.18° tail in p.a. 295 deg);
    19.21, 9.0, 15' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.36° tail in p.a. 291 deg);
    19.21, 9.0, 21' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.94° tail in p.a. 291 deg);
    19.15, 8.9, 22' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.9° tail in p.a. 290 deg);
    19.15, 9.6, 6.5' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    19.12, 10.1, 1.5' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    19.10, 9.6, 8' (M. Biely, 20x80 Binoculars);
    19.07, 9.0, 20' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.69° tail in p.a. 292 deg);
    19.06, 9.2, 19' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.25° tail in p.a. 294 deg);
    19.06, 8.9, 5.5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 3.5' tail in p.a. 344 deg);
    19.02, 10.7, 3' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.78, 9.3, 5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.74, 8.4, 6.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    18.74, 9.6, 1.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    18.74, 8.5, 1.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2' tail in p.a. 290 deg);
    18.55, 8.6, 18' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.13° tail in p.a. 292 deg);
    18.50, 9.0, 17' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.54° tail in p.a. 294 deg);
    18.40, 8.6, 20' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.12° tail in p.a. 294 deg);
    18.37, 9.1, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.41° tail in p.a. 292 deg);
    18.33, 9.2, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 8.6' tail in p.a. 295 deg);
    18.30, 9.2, 6' (M. Goiato, 0.22-m Newtonian);
    18.29, 9.0, 8' (M. Goiato, 20x100 Binoculars);
    18.18, 10.2, 6.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 4' tail in p.a. 297 deg);
    18.15, 9.5, 9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.13° tail in p.a. 296 deg);
    18.14, 9.2, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    18.13, 10.2, 1.5' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    18.05, 11.1, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.03, 11.2, 1.7' (P. Dekelver, 0.3-m Newtonian + CCD; 2.8' tail in p.a. 296 deg);
    17.77, 9.3, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.75, 9.0, 8' (M. Mattiazzo, Strathalbyn, South Australia, 15x70 Binoculars);
    17.71, 9.1, 8.4' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    17.49, 9.1, 17' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.31° tail in p.a. 295 deg);
    17.44, 8.6, 20' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.14° tail in p.a. 293 deg);
    17.39, 9.3, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 10.2' tail in p.a. 292 deg);
    17.38, 9.1, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.47° tail in p.a. 292 deg);
    17.22, 9.2, 16' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.26° tail in p.a. 294 deg);
    17.14, 9.8, 6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.17° tail in p.a. 286 deg);
    17.13, 9.2, 15' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 292 deg);
    16.87, 10.0, 4' (Y. Nagai, 0.05-m Refractor + CCD);
    16.75, 9.4, 6.9' (T. Yusa, 0.05-m Refractor + CCD);
    16.54, 8.5, 22' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 2.3' tail in p.a. 292 deg);
    16.48, 9.0, 20' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.4° tail in p.a. 293 deg);
    16.37, 9.1, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.49° tail in p.a. 295 deg);
    16.34, 9.3, 9' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    16.18, 9.4, 2.9' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    16.18, 8.8, 5.5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    16.18, 8.8, 5' (G. Scheerle, 9x63.0 Binoculars);
    16.14, 10.0, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    15.83, 10.8, 4.9' (O. Miyazaki, 0.32-m Newtonian);
    15.77, 9.5, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.51, 8.6, 22' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.08° tail in p.a. 296 deg);
    15.50, 9.0, 17' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.58° tail in p.a. 292 deg);
    15.44, 9.0, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.49° tail in p.a. 293 deg);
    14.82, 10.1, 4' (O. Miyazaki, 0.32-m Newtonian);
    14.77, 9.2, 8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.47, 8.6, 20' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.08° tail in p.a. 296 deg);
    14.43, 12.8, 5.4' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    14.42, 9.0, 16' (T. Lehmann, Chopin Obs. (remote), 0.08-m Refractor + CCD; 0.1° tail in p.a. 295 deg);
    14.34, 9.3, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    14.18, 9.3, 8.84' (N. James, 0.072-m Refractor + CCD);
    14.15, 9.9, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    14.10, 9.9, 2.7' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    13.81, 10.0, 3.6' (O. Miyazaki, 0.32-m Newtonian);
    13.79, 9.2, 8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    13.54, 8.8, 17' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 1.7' tail in p.a. 296 deg);
    13.43, 8.8, 20' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.18° tail in p.a. 296 deg);
    13.17, 9.8, 6' (C. Labordena, La Serra de Engarcera, 0.2-m Schmidt-Cassegrain);
    13.15, 9.7, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    12.77, 9.2, 8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.55, 8.7, 23' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.2° tail in p.a. 295 deg);
    12.39, 8.9, 18' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.19° tail in p.a. 298 deg);
    12.14, 9.8, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    11.68, 10.0, 4' (Y. Nagai, 0.05-m Refractor + CCD);
    11.48, 8.8, 15' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.19° tail in p.a. 287 deg);
    11.43, 8.8, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    11.14, 9.5, 8.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.77, 9.1, 8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    10.27, 9.8, 4' (J. de Souza Aguiar, 0.3-m Newtonian);
    10.15, 9.7, 9' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    09.81, 9.1, 7' (T. Yusa, 0.05-m Refractor + CCD);
    08.14, 9.5, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    08.11, 9.1, 15' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.14° tail in p.a. 290 deg);
    07.81, 9.0, 6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.34, 9.1, 7' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    07.08, 9.1, 16' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.06° tail in p.a. 294 deg);
    06.75, 9.4, 7' (T. Yusa, 0.05-m Refractor + CCD);
    06.14, 9.7, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    06.11, 9.2, 15' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.08° tail in p.a. 297 deg);
    05.11, 9.2, 16' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 2.2' tail in p.a. 292 deg);
    05.06, 9.6, 9' (A. Pearce, Skygems Namibia Remote Observatory, 0.1-m Refractor + CCD);
    05.06, 10.5, 3.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    04.70, 9.6, 3.9' (Y. Nagai, 0.05-m Refractor + CCD);
    04.43, 9.2, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    04.28, 10.1, 3.9' (W. Souza, 0.05-m Refractor + CCD);
    04.15, 9.7, 10' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    04.09, 9.6, 4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    03.44, 9.3, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    03.43, 9.5, 12' (T. Lehmann, Chopin Obs (remote), 0.08-m Refractor + CCD; 0.9' tail in p.a. 285 deg);
    02.14, 9.9, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    01.39, 9.1, 10' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);


29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 28.71, 12.7, 2.7' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.77, 12.4, 2.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.71, 12.7, 2.7' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.07, 14.5, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    26.98, 11.4, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.97, 13.1, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.97, 12.1, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.76, 12.8, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.72, 13.0, 2.5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    26.26, 12.3, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    26.04, 14.0, 1' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    25.96, 14.9, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.72, 12.4, 2.8' (T. Yusa, 0.05-m Refractor + CCD; 4.5' tail in p.a. 308 deg);
    25.66, 12.0, 2.7' (C. Wyatt, 0.4-m Newtonian);
    25.08, 13.4, 1.4' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    24.74, 12.3, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.74, 12.9, 1.8' (Y. Nagai, 0.05-m Refractor + CCD);
    24.71, 12.4, 2.5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    24.56, 12.9, 2' (T. Yusa, 0.05-m Refractor + CCD);
    24.26, 12.5, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    24.07, 13.0, 1.9' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.61, 12.4, 1.9' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    23.58, 12.6, 1.9' (T. Yusa, 0.05-m Refractor + CCD);
    23.26, 12.6, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.25, 13.0, 1.9' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.14, 12.6, 2.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.06, 12.4, 3.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.70, 12.9, 2' (Y. Nagai, 0.05-m Refractor + CCD);
    22.05, 13.3, 1.4' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    21.99, 13.1, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.96, 13.0, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.71, 13.2, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    21.65, 12.4, 1.9' (C. Wyatt, 0.4-m Newtonian);
    21.12, 12.7, 2.2' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    21.02, 12.9, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    20.77, 12.7, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.74, 12.8, 2.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.58, 13.0, 2' (T. Yusa, 0.05-m Refractor + CCD);
    20.08, 12.2, 5.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.15° tail in p.a. 312 deg);
    19.99, 12.4, 2.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.99, 12.8, 1.3' (W. Kutschera, 0.508-m Newtonian);
    19.80, 12.9, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.73, 13.0, 2.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    19.18, 12.3, 5.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.14, 13.6, 0.6' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    19.11, 12.8, 1' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    19.01, 12.3, 3.2' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.97, 12.9, 1.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.73, 12.8, 2.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.69, 12.8, 2.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2' tail in p.a. 290 deg);
    18.38, 12.2, 6.4' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.24° tail in p.a. 303 deg);
    18.11, 12.8, 1' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    18.01, 12.6, 2' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.70, 13.0, 2.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.09, 12.3, 3.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.66, 12.6, 2.1' (T. Yusa, 0.05-m Refractor + CCD);
    15.71, 12.8, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.08, 12.5, 2.6' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.71, 12.9, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.08, 12.7, 2' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.71, 12.9, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.72, 12.8, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    11.65, 12.9, 2.3' (Y. Nagai, 0.05-m Refractor + CCD);
    10.72, 12.6, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    10.32, 12.4, 1.9' (W. Souza, 0.05-m Refractor + CCD);
    09.81, 12.8, 1.9' (T. Yusa, 0.05-m Refractor + CCD);
    06.75, 13.2, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    04.98, 11.7, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    04.66, 12.3, 1.1' (Y. Nagai, 0.05-m Refractor + CCD);
    04.08, 10.6, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    03.75, 12.8, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    02.98, 12.3, 0.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    02.84, 12.5, 1.6' (T. Yusa, 0.05-m Refractor + CCD);
    01.73, 12.8, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


40P/Vaisala
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 26.50, 15.5, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 275 deg);
    25.83, 15.3, 0.5' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 308 deg);
    24.85, 15.1, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 1' tail in p.a. 285 deg);
    20.24, 16.9, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.76, 16.1, 0.38' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 0.8' tail in p.a. 280 deg);
    14.54, 16.6, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 0.4' tail in p.a. 277 deg);


43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.69, 16.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 301 deg);
    28.69, 16.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 302 deg);
    27.68, 16.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 299 deg);
    26.98, 16.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 300 deg);
    23.61, 16.2, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 3.3' tail in p.a. 295 deg);
    21.20, 17.3, 0.28' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.76, 16.1, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 301 deg);
    19.11, 16.6, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 294 deg);
    12.67, 16.4, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.5' tail in p.a. 297 deg);
    12.47, 16.3, 1.2' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.1° tail in p.a. 293 deg);
    03.73, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.73, 17.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.74, 17.6, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    07.74, 16.9, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


48P/Johnson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.74, 18.8, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 68 deg);
    19.75, 18.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 74 deg);
    18.81, 16.9, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    18.75, 18.3, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 77 deg);
    13.03, 18.7, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD; 1' tail in p.a. 70 deg);
    11.88, 18.8, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


63P/Wild
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.91, 18.6, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    19.85, 18.0, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    08.55, 18.3, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD);


74P/Smirnova-Chernykh
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 26.07, 20.0, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 12.10, 16.5, 0.3' (M. Olason, Arizona, 0.05-m Refractor + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.56, 14.8, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.56, 14.5, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);


95P/Chiron
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 19.75, 19.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


123P/West-Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.93, 18.0, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.99, 18.1, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.91, 18.6, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.98, 18.2, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 79 deg);
    18.05, 17.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    16.88, 18.4, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.2' tail in p.a. 111 deg);
    08.77, 18.5, 0.39' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    07.89, 18.0, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    05.00, 18.9, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);


124P/Mrkos
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 22.19, 18.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.13, 18.5, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.20, 18.7, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.24, 19.1, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.93, 19.0, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.20, 19.8, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);


143P/Kowal-Mrkos
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 22.08, 19.2, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.19, 19.0, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);


145P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.78, 16.3, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.77, 16.6, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.75, 17.3, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.77, 16.2, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.75, 16.3, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.75, 16.1, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 57 deg);
    12.14, 16.7, 0.3' (M. Olason, Arizona, 0.05-m Refractor + CCD);


164P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 23.23, 17.6, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD; 5" tail in p.a. 271 deg);
    21.24, 17.4, 0.28' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.00, 17.0, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 271 deg);
    19.14, 17.7, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    14.02, 17.8, 0.5' (G. Pappa, Spain (remote control), 0.3-m Newtonian + CCD);
    12.24, 17.6, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


171P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.21, 20.0, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


175P/Hergenrother
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.03, 19.5, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


195P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.14, 18.3, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.58, 17.7, 0.25' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    14.16, 18.3, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.82, 15.3, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 291 deg);
    25.23, 16.6, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.23, 14.8, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.21, 16.2, 0.24' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.75, 14.3, 0.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 2.6' tail in p.a. 292 deg);
    17.54, 14.3, 1.9' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.11° tail in p.a. 290 deg);
    17.19, 13.4, 2.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.87, 15.0, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    06.83, 13.8, 1' (T. Yusa, 0.05-m Refractor + CCD);
    02.49, 13.5, 1.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);


217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 22.09, 18.3, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.59, 17.5, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.3' tail in p.a. 145 deg);
    14.11, 18.3, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


233P/La Sagra
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.99, 19.9, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.84, 14.0, 0.6' (Y. Nagai, 0.05-m Refractor + CCD);
    29.33, 14.1, 0.9' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD; 13.7' tail in p.a. 278 deg);
    28.77, 14.0, 1.2' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 1.5' tail in p.a. 283 deg);
    27.81, 13.9, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3' tail in p.a. 277 deg);
    27.80, 13.8, 1.2' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 1.5' tail in p.a. 280 deg);
    26.80, 13.9, 1.2' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 1.5' tail in p.a. 279 deg);
    25.81, 14.0, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 0.8' tail in p.a. 277 deg);
    25.68, 14.1, 0.5' (C. Wyatt, 0.4-m Newtonian);
    25.26, 14.9, 0.28' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.80, 13.7, 0.9' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    21.67, 13.8, 0.8' (C. Wyatt, 0.4-m Newtonian);
    19.19, 14.4, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.17, 13.9, 1.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    17.72, 13.7, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 1.8' tail in p.a. 281 deg);
    17.18, 13.8, 1.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.84, 13.6, 1' (T. Yusa, 0.05-m Refractor + CCD; 1' tail in p.a. 289 deg);
    16.54, 13.8, 1.4' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.23° tail in p.a. 279 deg);
    06.80, 14.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 1.5' tail in p.a. 286 deg);


240P-B/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.74, 17.5, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.55, 16.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    23.48, 16.3, 0.47' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.78, 16.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.77, 17.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.77, 16.9, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.73, 17.2, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.78, 17.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.78, 16.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 90 deg);
    20.77, 17.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 87 deg);
    20.74, 17.6, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 84 deg);
    20.73, 17.0, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.55, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.81, 15.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.78, 16.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.77, 17.4, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.77, 17.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.73, 17.1, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.72, 17.4, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.90, 15.7, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    18.89, 17.4, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.80, 16.1, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.4' tail in p.a. 93 deg);
    18.80, 16.7, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.77, 15.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 92 deg);
    18.77, 16.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 97 deg);
    18.76, 16.8, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 100 deg);
    18.74, 17.0, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 89 deg);
    18.73, 17.3, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.47, 16.5, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    17.78, 16.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 89 deg);
    17.77, 17.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 94 deg);
    17.77, 16.6, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 91 deg);
    17.73, 16.2, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 85 deg);
    17.73, 17.2, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.49, 16.1, 0.5' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    16.48, 16.0, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    15.06, 15.3, 0.33' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    14.69, 16.2, 0.48' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    14.42, 16.0, 0.5' (Y. Nagai, 0.05-m Refractor + CCD);
    13.91, 15.7, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    11.91, 16.4, 0.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.02, 16.2, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.55, 15.8, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    08.72, 15.9, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 0.5' tail in p.a. 90 deg);
    07.44, 16.4, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    06.82, 16.5, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.51, 16.3, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 85 deg);
    06.49, 15.7, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    05.72, 15.9, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    05.49, 16.1, 0.47' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    04.77, 16.6, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.77, 16.1, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 97 deg);
    04.76, 16.9, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.76, 15.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 97 deg);
    04.75, 16.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 93 deg);
    01.59, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.74, 15.1, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.54, 14.7, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.3' tail in p.a. 83 deg);
    25.53, 14.8, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    24.53, 14.4, 1.2' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 0.8' tail in p.a. 94 deg);
    23.55, 14.6, 0.9' (Y. Nagai, 0.05-m Refractor + CCD);
    23.55, 14.4, 1.3' (T. Yusa, 0.05-m Refractor + CCD; 1.5' tail in p.a. 91 deg);
    23.53, 14.5, 1.1' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 0.8' tail in p.a. 127 deg);
    23.48, 14.2, 0.7' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 4.7' tail in p.a. 218 deg);
    22.79, 14.2, 0.6' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    21.82, 13.9, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.73, 14.2, 0.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.52, 14.0, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.78, 14.8, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 88 deg);
    20.78, 13.1, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 89 deg);
    20.77, 14.7, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 91 deg);
    20.75, 13.2, 0.8' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    20.74, 15.1, 1.3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 92 deg);
    20.73, 13.6, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    20.73, 14.0, 1' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.55, 14.1, 1.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.55, 13.9, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 86 deg);
    20.45, 14.1, 0.6' (C. Wyatt, 0.4-m Newtonian);
    19.83, 15.3, 0.31' (A. Garcia Sanchez, Rio Cofio, Robledo de Chavela (MPC Z03), 0.25-m Schmidt-Cassegrain + CCD);
    19.81, 13.5, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.78, 13.0, 2.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.77, 14.3, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.77, 14.4, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.73, 15.3, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.72, 14.8, 1.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.55, 14.4, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.90, 13.4, 3.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 205 deg);
    18.89, 13.1, 3' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.82, 15.4, 0.31' (A. Garcia Sanchez, Rio Cofio, Robledo de Chavela (MPC Z03), 0.25-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 95 deg);
    18.81, 13.6, 0.8' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    18.80, 13.2, 2' (E. Bryssinck, 0.4-m Newtonian + CCD; 1.5' tail in p.a. 91 deg);
    18.80, 14.4, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.78, 13.3, 1.2' (W. Kutschera, 0.508-m Newtonian);
    18.77, 14.0, 2.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 93 deg);
    18.77, 12.9, 3.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 91 deg);
    18.77, 13.0, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.76, 13.9, 3.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2' tail in p.a. 96 deg);
    18.75, 13.3, 1.2' (C. Harder, Jeersdorf f, 0.35-m Newtonian);
    18.74, 14.7, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 92 deg);
    18.73, 13.6, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.55, 14.3, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.47, 14.3, 1' (T. Yusa, 0.05-m Refractor + CCD);
    17.90, 13.3, 0.8' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    17.78, 12.9, 2.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 92 deg);
    17.77, 14.2, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 94 deg);
    17.77, 14.4, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 88 deg);
    17.73, 13.8, 1.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.73, 14.5, 1.3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 85 deg);
    17.71, 14.4, 1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    17.52, 14.2, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.4' tail in p.a. 108 deg);
    17.49, 13.8, 1.1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 2.6' tail in p.a. 216 deg);
    16.83, 12.6, 4.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    16.69, 13.5, 2.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.55, 12.4, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    16.48, 13.9, 1.2' (T. Yusa, 0.05-m Refractor + CCD);
    15.86, 13.2, 1.4' (W. Kutschera, 0.508-m Newtonian);
    15.72, 15.6, 0.43' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    15.61, 12.3, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    15.52, 13.8, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.06, 13.2, 2.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 1.4' tail in p.a. 82 deg);
    14.69, 13.0, 2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 2.6' tail in p.a. 80 deg);
    14.52, 13.8, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.42, 14.1, 1.3' (Y. Nagai, 0.05-m Refractor + CCD);
    13.91, 14.5, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.52, 13.8, 1.3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.52, 14.1, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    11.91, 13.4, 2.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.74, 13.5, 1.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    11.02, 14.0, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.53, 14.1, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    09.71, 13.4, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    09.55, 13.9, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    08.72, 13.5, 1.9' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    08.70, 13.5, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    07.84, 12.4, 4.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.24° tail in p.a. 213 deg);
    07.60, 13.3, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.52, 14.0, 1.4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    07.44, 13.8, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    06.82, 13.0, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.82, 13.1, 1.1' (W. Kutschera, 0.508-m Newtonian);
    06.53, 13.4, 1.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    06.51, 13.9, 0.9' (K. Yoshimoto, 0.3-m Newtonian + CCD; 4' tail in p.a. 240 deg);
    06.49, 13.2, 2' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 8.2' tail in p.a. 218 deg);
    05.79, 12.6, 4.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.72, 12.7, 3.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 215 deg);
    05.49, 13.6, 1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 7.2' tail in p.a. 222 deg);
    04.77, 13.1, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.77, 13.2, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 89 deg);
    04.76, 11.6, 3.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 87 deg);
    04.76, 12.7, 3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 83 deg);
    04.75, 13.3, 3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 89 deg);
    04.71, 12.8, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.6' tail in p.a. 63 deg);
    04.55, 13.7, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    04.40, 13.6, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    03.75, 14.2, 0.33' (M. Filipek, Jerzmanowice, 0.25-m Newtonian + CCD);
    03.74, 12.4, 1.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    03.53, 13.8, 1.4' (T. Yusa, 0.05-m Refractor + CCD);
    01.59, 12.6, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.95, 18.1, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


248P/Gibbs
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.92, 18.9, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.64, 18.5, 0.38' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.55, 18.4, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.71, 17.5, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


276P/Vorobjov
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.94, 19.2, 0.11' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.13, 18.6, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);


302P/Lemmon-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 18.82, 18.1, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.71, 17.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


450P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.99, 18.4, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.55, 18.3, 0.25' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    22.13, 17.9, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.13, 18.4, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.88, 18.1, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);


493P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.98, 17.4, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    20.02, 18.1, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.78, 17.2, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    18.07, 17.4, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);


495P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.93, 21.0, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


509P/Catalina
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.94, 19.1, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 28.58, 14.8, 1' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.60, 14.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.58, 15.1, 1' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    26.64, 14.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.65, 15.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.53, 14.8, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.62, 14.7, 0.4' (C. Wyatt, 0.4-m Newtonian);
    20.68, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.44, 14.6, 0.5' (C. Wyatt, 0.4-m Newtonian);
    19.68, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.70, 15.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.66, 15.0, 1.1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.63, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.68, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.62, 14.5, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.59, 14.9, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    06.59, 14.9, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    03.67, 14.6, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.62, 14.5, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    01.56, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.86, 18.3, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.06, 18.2, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.79, 17.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.79, 17.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.10, 18.1, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    16.97, 18.1, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.95, 16.5, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 98 deg);
    10.27, 17.2, 0.32' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 20.55, 15.1, 1.4' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.06° tail in p.a. 231 deg);
    19.23, 15.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 242 deg);
    16.52, 16.0, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.86, 15.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.74, 16.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    27.74, 16.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    27.74, 16.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.72, 17.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.72, 17.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.89, 16.3, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.82, 17.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.79, 15.9, 1' (E. Bryssinck, 0.4-m Newtonian + CCD; 3.1' tail in p.a. 41 deg);
    18.70, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 28 deg);
    17.73, 15.8, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.73, 16.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.73, 17.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.86, 17.2, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    05.80, 16.0, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 34 deg);
    04.83, 16.5, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.71, 16.7, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 28.80, 16.2, 0.75' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain + CCD);
    25.91, 15.8, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.96, 15.2, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    23.76, 15.6, 1' (R. Arnold, 0.2-m Schmidt-Cassegrain);
    23.54, 15.2, 0.5' (Y. Nagai, 0.05-m Refractor + CCD);
    23.47, 14.1, 1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    23.45, 15.3, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    21.94, 14.4, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD; 3.9' tail in p.a. 252 deg);
    21.77, 14.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 252 deg);
    21.76, 15.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.9' tail in p.a. 252 deg);
    21.76, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 252 deg);
    20.78, 14.9, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.1' tail in p.a. 251 deg);
    20.77, 14.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.6' tail in p.a. 249 deg);
    20.76, 15.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.3' tail in p.a. 251 deg);
    20.76, 15.0, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 248 deg);
    20.51, 14.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    20.46, 14.6, 0.2' (C. Wyatt, 0.4-m Newtonian);
    19.77, 14.1, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 250 deg);
    19.76, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 251 deg);
    19.76, 15.2, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.1' tail in p.a. 248 deg);
    19.74, 14.0, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 259 deg);
    18.99, 14.8, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.94, 14.4, 1.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.09° tail in p.a. 253 deg);
    18.87, 14.4, 1.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.86, 14.5, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 255 deg);
    18.83, 13.9, 0.3' (M. Kwinta, Krzesławice, 0.35-m Newtonian);
    18.82, 14.0, 1.1' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.8' tail in p.a. 231 deg);
    18.81, 13.4, 0.9' (W. Kutschera, 0.508-m Newtonian);
    18.76, 14.7, 2.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.4' tail in p.a. 256 deg);
    18.76, 14.5, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2' tail in p.a. 248 deg);
    18.76, 13.9, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 249 deg);
    18.75, 14.7, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.3' tail in p.a. 252 deg);
    18.74, 14.1, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.44, 14.5, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    17.95, 14.2, 1' (P. Dekelver, 0.3-m Newtonian + CCD; 2.3' tail in p.a. 254 deg);
    17.80, 14.1, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 250 deg);
    17.80, 15.0, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 248 deg);
    17.79, 15.0, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 253 deg);
    17.76, 14.3, 0.25' (M. Filipek, JerzmanowiceN2, 0.25-m Newtonian + CCD);
    17.74, 14.8, 2.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.5' tail in p.a. 251 deg);
    16.75, 14.3, 1.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    16.53, 14.9, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    15.70, 15.9, 0.43' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    14.56, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.97, 14.7, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.54, 14.5, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.4' tail in p.a. 258 deg);
    11.94, 14.2, 1.5' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    10.58, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 249 deg);
    09.55, 14.5, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    08.76, 14.4, 1.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    08.76, 14.4, 1.3' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 8.1' tail in p.a. 254 deg);
    08.70, 13.9, 0.8' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    07.59, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3' tail in p.a. 253 deg);
    07.45, 15.0, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    06.85, 14.0, 0.8' (W. Kutschera, 0.508-m Newtonian);
    06.49, 14.3, 1.3' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 3.1' tail in p.a. 253 deg);
    04.98, 14.2, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.75, 14.2, 3.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.53, 14.1, 1' (T. Yusa, 0.05-m Refractor + CCD);
    02.45, 13.8, 0.9' (T. Yusa, 0.05-m Refractor + CCD);


C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.66, 14.4, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.4' tail in p.a. 252 deg);
    28.68, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.7' tail in p.a. 252 deg);
    27.91, 13.8, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    27.77, 14.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 253 deg);
    27.77, 15.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 251 deg);
    27.76, 15.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 253 deg);
    27.65, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.4' tail in p.a. 255 deg);
    27.58, 14.8, 0.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    27.56, 14.6, 0.5' (Y. Nagai, 0.05-m Refractor + CCD);
    26.96, 15.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.2' tail in p.a. 252 deg);
    26.96, 14.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.4' tail in p.a. 251 deg);
    26.96, 15.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 255 deg);
    26.72, 14.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.8' tail in p.a. 255 deg);
    26.10, 15.1, 0.6' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    25.66, 14.8, 0.4' (C. Wyatt, 0.4-m Newtonian);
    25.63, 14.8, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.9' tail in p.a. 271 deg);
    24.70, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.50, 14.8, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 2.5' tail in p.a. 257 deg);
    23.79, 14.7, -- (R. Arnold, 0.2-m Schmidt-Cassegrain + CCD);
    23.60, 14.4, 0.5' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 4.9' tail in p.a. 254 deg);
    23.51, 14.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 1' tail in p.a. 260 deg);
    22.96, 14.7, 1.4' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.67, 14.8, 0.7' (Y. Nagai, 0.05-m Refractor + CCD);
    22.17, 14.7, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 5.2' tail in p.a. 254 deg);
    21.89, 13.9, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    21.79, 15.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.1' tail in p.a. 254 deg);
    21.74, 14.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.64, 14.9, 0.5' (C. Wyatt, 0.4-m Newtonian);
    20.56, 14.7, 0.8' (T. Yusa, 0.05-m Refractor + CCD; 5.1' tail in p.a. 260 deg);
    20.18, 15.8, 0.18' (P. Dekelver, 0.3-m Newtonian + CCD; 5.7' tail in p.a. 250 deg);
    19.81, 15.3, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.5' tail in p.a. 254 deg);
    19.74, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.2' tail in p.a. 257 deg);
    19.14, 14.7, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 253 deg);
    18.99, 14.3, 0.7' (W. Kutschera, 0.508-m Newtonian + CCD);
    18.99, 14.7, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 254 deg);
    18.97, 15.8, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.90, 14.6, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.79, 15.1, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.6' tail in p.a. 255 deg);
    18.22, 14.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 2.8' tail in p.a. 262 deg);
    17.80, 14.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4' tail in p.a. 258 deg);
    16.97, 14.7, 0.54' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    16.56, 15.1, 0.8' (T. Yusa, 0.05-m Refractor + CCD; 1' tail in p.a. 274 deg);
    15.91, 15.4, 0.6' (D. Heggie, Edinburgh, Scotland, 0.05-m Refractor + CCD; 0.8' tail in p.a. 275 deg);
    14.75, 14.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.60, 14.6, 0.6' (Y. Nagai, 0.05-m Refractor + CCD);
    14.58, 14.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.43, 14.8, 1.2' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 0.16° tail in p.a. 255 deg);
    14.20, 15.0, 0.6' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.70, 14.7, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 264 deg);
    12.68, 14.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 255 deg);
    12.00, 14.8, 1.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    11.73, 14.6, 0.6' (Y. Nagai, 0.05-m Refractor + CCD);
    10.73, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.6' tail in p.a. 252 deg);
    09.87, 14.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    09.58, 14.6, 1' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    07.02, 14.4, 2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.91, 14.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 5.2' tail in p.a. 254 deg);
    03.71, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.56, 14.9, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    01.71, 15.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.63, 16.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.98, 16.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.70, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.57, 16.1, 0.42' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    22.15, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.76, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.17, 16.2, 0.45' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.72, 15.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 245 deg);
    18.99, 17.1, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    14.78, 16.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 243 deg);
    12.58, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.5' tail in p.a. 241 deg);
    11.98, 17.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    10.61, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.65, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.69, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.60, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.89, 17.4, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.92, 17.0, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.95, 16.9, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.92, 16.8, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.77, 16.3, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 210 deg);
    04.85, 17.0, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.65, 17.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 105 deg);
    26.79, 17.4, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.03, 17.7, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    23.59, 17.2, 0.25' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.16, 17.7, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.73, 17.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 318 deg);
    19.72, 18.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 325 deg);
    17.19, 17.3, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 319 deg);


C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 05.84, 18.4, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);


C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 24.87, 17.2, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    22.11, 16.8, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD; 4.7' tail in p.a. 184 deg);
    21.25, 17.0, 0.34' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.16, 16.6, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD; 2.8' tail in p.a. 185 deg);
    19.78, 17.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.93, 17.3, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.91, 16.5, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 186 deg);
    18.86, 16.6, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    18.80, 17.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.50, 16.1, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    18.19, 16.8, 0.41' (P. Dekelver, 0.3-m Newtonian + CCD);
    17.81, 16.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.04, 16.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 186 deg);
    16.78, 16.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    14.13, 16.8, 0.45' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    11.85, 16.3, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 193 deg);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 30.97, 6.8, 3' (M. Goiato, 7x50 Binoculars);
    29.43, 6.6, 2.3' (C. Wyatt, 15x70 Binoculars);
    28.51, 6.9, 3.5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 40' tail in p.a. 143 deg);
    28.44, 6.6, 3' (C. Wyatt, 15x70 Binoculars; 9' tail in p.a. 145 deg);
    27.96, 7.0, 3' (A. Amorim, 0.09-m Refractor);
    27.52, 6.1, 4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 41.3' tail in p.a. 146 deg);
    27.48, 6.2, 3' (M. Mattiazzo, Strathalbyn, South Australia, 15x70 Binoculars);
    27.43, 6.1, 2' (C. Wyatt, 15x70 Binoculars);
    26.96, 7.0, 3' (A. Amorim, 0.09-m Refractor);
    26.96, 7.0, -- (A. Amorim, 10x50 Binoculars);
    26.93, 6.4, 2' (J. de Souza Aguiar, 11x80 Binoculars);
    26.52, 7.0, 3.5' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 34.9' tail in p.a. 149 deg);
    26.48, 6.7, 3' (M. Mattiazzo, Strathalbyn, South Australia, 15x70 Binoculars; 1° tail in p.a. 146 deg);
    25.93, 6.3, 3' (J. de Souza Aguiar, 11x80 Binoculars);
    25.43, 6.7, 2.6' (C. Wyatt, 0.1-m Refractor; 9.5' tail in p.a. 144 deg);
    24.93, 6.3, 3' (J. de Souza Aguiar, 11x80 Binoculars);
    24.52, 6.8, 3' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 32.2' tail in p.a. 152 deg);
    24.42, 7.0, 2.2' (C. Wyatt, 0.1-m Refractor);
    23.93, 6.4, 2' (J. de Souza Aguiar, 25x100 Binoculars);
    23.52, 6.8, 3' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD; 14.6' tail in p.a. 152 deg);


C/2024 G2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.19, 18.6, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    21.22, 18.5, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 25.02, 18.2, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.71, 17.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 129 deg);
    20.71, 16.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 123 deg);
    20.71, 16.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 122 deg);
    20.70, 17.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 128 deg);
    19.73, 16.6, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.71, 16.3, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 120 deg);
    19.70, 17.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 123 deg);
    19.70, 17.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 119 deg);
    18.71, 17.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 121 deg);
    17.72, 16.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 107 deg);
    17.72, 16.7, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 111 deg);
    17.71, 16.7, 0.5' (J. Koukal, Valasske, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 112 deg);
    16.72, 16.5, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.2' tail in p.a. 118 deg);
    04.79, 16.5, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2024 T5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 28.53, 15.1, 0.6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.55, 14.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 223 deg);
    27.53, 15.0, 0.6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    26.56, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 215 deg);
    24.82, 15.1, 0.4' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    24.58, 14.9, 0.6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    24.58, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.58, 15.1, 0.6' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    23.49, 14.7, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.58, 15.1, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.61, 15.1, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 0.3' tail in p.a. 246 deg);
    20.58, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 226 deg);
    19.61, 15.0, 0.55' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    19.59, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 228 deg);
    18.61, 15.0, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 0.5' tail in p.a. 223 deg);
    18.14, 14.9, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    17.58, 15.1, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 0.3' tail in p.a. 234 deg);
    15.58, 15.0, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.60, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 227 deg);
    14.58, 15.0, 0.55' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    13.87, 15.1, 0.45' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.64, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 228 deg);
    13.58, 15.2, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.61, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 229 deg);
    12.59, 15.3, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    10.65, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.59, 15.2, 0.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    07.56, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.59, 15.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.50, 15.0, 0.47' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    05.81, 15.1, 0.7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.6' tail in p.a. 229 deg);
    03.65, 15.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 243 deg);
    01.55, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 235 deg);
    01.55, 15.3, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);


C/2024 X2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 26.02, 18.9, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    22.06, 19.1, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.32, 9.2, 6.7' (M. Mattiazzo, 0.25-m Schmidt reflector + CCD; 32.1' tail in p.a. 59 deg);
    28.84, 9.6, 4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.84, 9.5, 4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    27.28, 9.1, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    26.84, 9.1, 4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    26.28, 9.1, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    25.70, 9.0, 2.6' (C. Wyatt, 15x70 Binoculars);
    25.70, 9.0, 3.3' (C. Wyatt, 0.4-m Newtonian);
    24.28, 9.0, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.84, 8.7, 4' (A. Pearce, Geordie Bay, Rottnest Island, W. Australia, 0.05-m Refractor + CCD);
    23.29, 9.0, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.13, 9.2, 3.5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 6' tail);
    21.69, 9.0, 3.3' (C. Wyatt, 15x70 Binoculars);
    21.68, 8.8, 4.4' (C. Wyatt, 0.4-m Newtonian);
    20.84, 9.3, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 5.8' tail in p.a. 235 deg);
    19.84, 9.3, 3.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.83, 9.3, 3.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.83, 9.2, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 8.4' tail in p.a. 241 deg);
    17.75, 8.7, 4' (M. Mattiazzo, Strathalbyn, South Australia, 15x70 Binoculars);
    17.74, 8.6, 4.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 35.8' tail in p.a. 61 deg);
    15.83, 9.1, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 9.6' tail in p.a. 244 deg);
    14.83, 9.0, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 13.5' tail in p.a. 242 deg);
    13.83, 9.0, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 3.4' tail in p.a. 228 deg);
    13.34, 8.6, 7.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    12.83, 9.0, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 5.3' tail in p.a. 237 deg);
    11.35, 8.5, 6.4' (K. Yoshimoto, 0.25-m Newtonian + CCD; 50' tail in p.a. 63 deg);
    10.83, 8.8, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 5' tail in p.a. 234 deg);
    10.32, 8.4, 2.8' (W. Souza, 0.05-m Refractor + CCD);
    10.29, 8.8, 1' (J. de Souza Aguiar, 25x100 Binoculars);
    08.29, 8.5, 2' (J. de Souza Aguiar, 25x100 Binoculars);
    07.83, 8.6, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.2' tail in p.a. 235 deg);
    06.83, 8.4, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 3.2' tail in p.a. 235 deg);
    05.83, 8.3, 4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.6' tail in p.a. 236 deg);
    04.83, 8.3, 3.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.2' tail in p.a. 233 deg);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.76, 15.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 42 deg);
    27.75, 15.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 42 deg);
    27.75, 16.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 37 deg);
    24.84, 17.0, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    22.06, 16.6, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.77, 17.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 28 deg);
    20.09, 16.7, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.79, 17.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 33 deg);
    18.91, 17.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.80, 17.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 35 deg);
    18.12, 16.8, 0.29' (P. Dekelver, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 40 deg);
    17.01, 16.8, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 27 deg);
    16.98, 16.9, 0.34' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    11.82, 16.9, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 29 deg);
    01.83, 16.5, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);


C/2025 K1-C
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.76, 17.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 11.4' tail in p.a. 68 deg);
    19.77, 18.1, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.78, 18.9, 0.3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    17.76, 18.1, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    16.44, 18.0, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 66 deg);
    15.07, 17.9, 0.27' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    11.86, 18.4, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    08.74, 17.1, 0.47' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    08.44, 18.2, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    06.81, 17.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.45, 18.4, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    05.81, 17.9, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    05.44, 18.0, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    05.11, 18.0, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    04.76, 17.7, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.74, 17.1, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14' tail in p.a. 72 deg);
    04.74, 15.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.8' tail in p.a. 72 deg);
    04.73, 17.1, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.70, 17.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.8' tail in p.a. 73 deg);


C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.76, 19.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.79, 17.6, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.2' tail in p.a. 65 deg);
    20.77, 14.6, 0.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    20.75, 16.8, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.4' tail in p.a. 68 deg);
    20.75, 18.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 66 deg);
    20.74, 18.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 9.4' tail in p.a. 67 deg);
    19.89, 16.4, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.21° tail in p.a. 68 deg);
    19.78, 16.7, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.59° tail in p.a. 69 deg);
    19.77, 18.6, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.6' tail in p.a. 66 deg);
    19.73, 18.3, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.2' tail in p.a. 66 deg);
    18.84, 15.8, 1.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4° tail in p.a. 68 deg);
    18.78, 18.4, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 4.5' tail in p.a. 70 deg);
    18.72, 17.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 19.3' tail in p.a. 69 deg);
    17.76, 18.1, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.9' tail in p.a. 71 deg);
    17.74, 18.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.9' tail in p.a. 68 deg);
    16.75, 14.0, 0.4' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    16.44, 18.3, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 66 deg);
    15.74, 14.0, 0.4' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    15.07, 16.8, 0.5' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 7.9' tail in p.a. 70 deg);
    11.92, 13.4, 0.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    11.86, 18.2, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.01, 17.9, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.14, 17.6, 0.3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 8' tail in p.a. 70 deg);
    08.74, 17.5, 0.5' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 14.5' tail in p.a. 70 deg);
    08.44, 17.9, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    07.78, 15.8, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.15° tail in p.a. 72 deg);
    06.81, 17.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.79, 17.5, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD; 22.1' tail in p.a. 72 deg);
    06.45, 18.2, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    05.81, 17.8, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    05.78, 16.0, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.39° tail in p.a. 72 deg);
    05.44, 18.1, 0.17' (K. Yoshimoto, 0.3-m Newtonian + CCD; 25' tail in p.a. 72 deg);
    05.11, 17.4, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    04.76, 17.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.74, 16.5, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.74, 17.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.73, 16.9, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 5.3' tail in p.a. 73 deg);
    04.70, 17.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.1' tail in p.a. 59 deg);


C/2025 L1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 21.55, 16.3, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    20.83, 15.5, 0.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.81, 15.7, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.79, 15.8, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.80, 15.7, 0.55' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.80, 15.6, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    13.80, 15.5, 0.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);


C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 29.62, 13.8, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.56, 13.6, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 98 deg);
    21.00, 12.9, 1.5' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.21, 14.2, 0.8' (N. Barnes, PAT, 0.3-m Newtonian + CCD; 1.1' tail in p.a. 106 deg);
    14.21, 14.5, 0.9' (N. Barnes, Paulton, 0.305-m Newtonian + CCD; 1.2' tail in p.a. 115 deg);
    13.93, 12.6, 1.8' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    11.94, 13.4, 0.9' (M. Lombardo, Zen Observatory, Scandicci (MPC M26), 0.3-m Ritchey-Chretien + CCD; 3.7' tail in p.a. 102 deg);
    10.26, 13.4, 1.5' (N. Barnes, PAT, 0.3-m Newtonian + CCD; 2.3' tail in p.a. 103 deg);
    10.26, 13.6, 1.5' (N. Barnes, Paulton, 0.305-m Newtonian + CCD; 2.2' tail in p.a. 103 deg);
    04.16, 14.2, 0.8' (N. Barnes, Paulton, 0.305-m Newtonian + CCD; 1' tail in p.a. 107 deg);


C/2025 Q3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.54, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.54, 15.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 63 deg);
    25.84, 16.9, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.49, 15.4, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    21.74, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.56, 15.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.89, 16.6, 0.23' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.74, 16.8, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 52 deg);
    19.57, 15.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.74, 16.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 50 deg);
    17.75, 16.5, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 55 deg);
    16.76, 15.7, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    14.87, 16.0, 0.5' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.54, 16.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.56, 15.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 52 deg);
    12.62, 15.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.89, 16.4, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    07.57, 16.3, 0.35' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.48, 16.1, 0.6' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);


C/2025 R2 (SWAN)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 23.43, 17.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    22.71, 15.1, 2.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    21.87, 17.5, 0.35' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.75, 15.6, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 247 deg);
    21.75, 16.2, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.4' tail in p.a. 245 deg);
    21.75, 14.6, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 247 deg);
    20.74, 16.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.9' tail in p.a. 251 deg);
    20.74, 15.4, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 248 deg);
    20.73, 16.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 246 deg);
    19.74, 16.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.74, 14.6, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.73, 16.1, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 248 deg);
    18.87, 16.8, 0.47' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.84, 16.1, 1.2' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.78, 15.0, 2.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 242 deg);
    18.73, 14.2, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.73, 15.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.72, 15.8, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 245 deg);
    17.76, 13.6, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.75, 15.8, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.75, 15.3, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.80, 14.9, 2.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 246 deg);
    15.73, , -- (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    09.54, 14.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    08.48, 15.3, 1.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 7' tail in p.a. 240 deg);
    07.41, 14.8, 1' (T. Yusa, 0.05-m Refractor + CCD);
    05.75, 13.8, 3.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 245 deg);
    05.49, 15.1, 1.1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    05.12, 13.4, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    04.92, 16.2, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.75, 13.3, 2.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 62 deg);
    04.75, 15.5, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.74, 15.4, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.4' tail in p.a. 248 deg);
    04.44, 14.3, 1.2' (T. Yusa, 0.05-m Refractor + CCD);
    02.43, 13.9, 1.3' (T. Yusa, 0.05-m Refractor + CCD);


C/2025 R3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 27.73, 15.2, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    27.72, 15.0, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    27.72, 13.5, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    24.39, 15.2, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    23.78, 15.4, 0.7' (J. Chambó Bris, OAV, Valencia, Spain (MPC XXX), 0.2-m Newtonian + CCD);
    23.39, 15.5, 0.48' (T. Yusa, 0.05-m Refractor + CCD);
    21.72, 14.6, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.72, 13.4, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.71, 14.8, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.72, 15.7, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 49 deg);
    20.72, 15.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 52 deg);
    20.72, 14.2, 2.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 52 deg);
    19.72, 13.4, 3.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.2' tail in p.a. 49 deg);
    19.71, 15.3, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 50 deg);
    18.81, 15.3, 0.9' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.74, 13.7, 3.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.6' tail in p.a. 58 deg);
    18.72, 16.0, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    18.70, 16.1, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.78, 16.4, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    17.71, 16.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.71, 15.1, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.70, 15.7, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.77, 14.2, 1.8' (W. Kutschera, 0.76-m Newtonian);
    15.09, 14.0, 2.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    14.06, 13.9, 3' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    12.79, 15.7, 0.6' (A. Pearce, Skygems Observatory, Fregenal da la Sierra, Spain, 0.3-m Newtonian + CCD);
    11.84, 16.2, 0.9' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    11.73, 13.5, 4.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 46 deg);
    08.55, 16.7, 1' (J. Xiong, Xingyuan Obs (MPC Code:O40), 0.252-m Newtonian + CCD);
    07.52, 16.7, 1' (J. Xiong, Xingyuan Obs (MPC Code:O40), 0.252-m Newtonian + CCD);
    06.50, 16.9, 0.3' (J. Xiong, Xingyuan Obs (MPC Code:O40), 0.252-m Newtonian + CCD);
    06.42, 17.2, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    05.89, 16.2, 0.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);


C/2025 T1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 20.08, 10.8, 1.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    18.08, 10.8, 1.8' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.08, 10.7, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    08.66, 10.7, 3.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.71, 9.9, 0.8' (W. Hasubick, 0.44-m Newtonian);
    06.38, 10.9, 0.9' (Y. Nagai, 0.05-m Refractor + CCD);
    05.75, 10.9, 1.5' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    05.71, 10.3, 5.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 286 deg);
    05.08, 10.1, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    04.72, 9.9, 2.4' (M. Meyer, 0.254-m Newtonian);
    04.35, 10.9, 2.4' (T. Yusa, 0.05-m Refractor + CCD);


C/2025 V2 (Rankin)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 22.12, 18.4, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.14, 19.2, 0.17' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2026 A1 (MAPS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 30.59, 17.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.57, 17.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.57, 17.3, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.57, 17.4, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 61 deg);
    26.58, 17.6, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 57 deg);
    25.13, 17.5, 0.4' (K. Yoshimoto, 0.25-m Newtonian + CCD; 0.3' tail in p.a. 50 deg);
    24.60, 17.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.54, 17.5, 0.47' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    22.43, 17.4, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    20.61, 17.8, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    20.02, 18.0, 4' (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD; 0.2' tail in p.a. 50 deg);
    19.65, 18.0, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 49 deg);
    19.46, 18.0, 0.55' (T. Lovejoy, iTelescope Observatory, Siding Spring, 0.43-m Newtonian + CCD; 0.3' tail in p.a. 44 deg);
    18.58, 18.1, -- (G. van Buitenen, Siding Spring, AU (Q62), 0.51-m Ritchey-Chretien + CCD);
    17.54, 18.1, 0.47' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    15.28, 18.4, 0.3' (K. Yoshimoto, 0.25-m Newtonian + CCD);
    14.62, 18.0, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 51 deg);
    14.52, 18.5, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);


A/2025 Y1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 19.09, 18.3, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    18.20, 18.1, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);


P/2015 TO19 (Lemmon-PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 09.04, 20.6, -- (P. Traverse, Observatoire SADR, Poroto, 0.355-m Newtonian + CCD);


P/2017 B4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
jan 20.30, 20.4, -- (J. Maikner, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);