Recent Comet Brightness Estimates

12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 10.34, 15.0, 1.4' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD);

29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.72, 11.6, 2.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.12, 12.4, 1.9' (A. Pearce, Namibia, 0.36-m Schmidt-Cassegrain + CCD);
    18.87, 11.5, 1.5' (C. Harder, Jeersdorf h, 0.252-m Newtonian);
    18.84, 11.4, 3.3' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    17.89, 10.8, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    14.21, 11.5, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    13.23, 11.4, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.34, 11.1, 5' (N. Paul, iTelescope Deep Sky Chile, Rio Hurtado, 0.51-m Schmidt-Cassegrain + CCD);
    11.11, 11.0, 4.4' (A. Pearce, Namibia, 0.36-m Schmidt-Cassegrain + CCD);
    10.81, 13.1, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    10.74, 12.3, 1.8' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    10.36, 11.3, 5.3' (N. Paul, iTelescope Deep Sky Chile, Rio Hurtado, 0.95-m Newtonian + CCD);
    10.27, 10.5, 5.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.69, 11.1, 3.7' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    08.10, 11.0, 5.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.09, 11.7, 5.26' (K. Hills, 0.5-m Newtonian + CCD);
    08.02, 12.1, 1.6' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    07.90, 12.8, 1.5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    07.10, 11.1, 4.8' (A. Pearce, Namibia, 0.36-m Schmidt-Cassegrain + CCD);
    07.01, 12.3, 3.2' (K. Hills, 0.5-m Newtonian + CCD);
    06.01, 11.9, 4.51' (K. Hills, 0.5-m Newtonian + CCD);
    05.67, 11.5, 6' (C. Wyatt, 0.4-m Newtonian);
    05.10, 11.7, 5.45' (K. Hills, 0.5-m Newtonian + CCD);
    05.02, 11.7, 2.5' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    04.64, 13.5, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    04.08, 12.5, 1.69' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    04.04, 11.1, 5' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    03.03, 11.8, 4.89' (K. Hills, 0.5-m Newtonian + CCD);
    03.00, 11.0, 5.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.02, 11.9, 1.7' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    01.03, 11.3, 3' (T. Sciezor, 0.06-m Camera lens + CCD);
2024
dec 31.99, 11.5, 4.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    31.72, 11.4, 5.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    31.63, 13.3, 1.7' (O. Miyazaki, 0.32-m Newtonian);
    31.16, 11.7, 5.26' (K. Hills, 0.5-m Newtonian + CCD);
    31.15, 11.6, 4.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    31.01, 12.4, 2' (T. Sciezor, 0.06-m Camera lens + CCD);
    30.09, 11.8, 4.89' (K. Hills, 0.5-m Newtonian + CCD);
    29.99, 11.6, 3' (T. Sciezor, 0.06-m Camera lens + CCD);
    29.10, 11.8, 4.51' (K. Hills, 0.5-m Newtonian + CCD);
    29.05, 12.0, 6.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.01, 11.2, 8.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    28.71, 10.9, 5.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.42, 11.2, 4.3' (N. Paul, iTelescope Utah Desert Remote Observatory USA, 0.28-m Schmidt-Cassegrain + CCD);
    28.19, 11.5, 4.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.13, 12.0, 4' (A. Pearce, Namibia, 0.36-m Ritchey-Chretien + CCD);
    28.04, 11.5, 5.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    27.99, 11.6, 6.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    27.21, 11.7, 4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    27.13, 11.1, 4.8' (A. Pearce, Namibia, 0.36-m Ritchey-Chretien + CCD);
    27.05, 11.9, 4.14' (K. Hills, 0.5-m Newtonian + CCD);
    27.01, 11.5, 6.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    27.00, 11.1, 4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.22, 11.6, 4.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    26.16, 11.4, 8.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    25.05, 11.9, 3.76' (K. Hills, 0.5-m Newtonian + CCD);
    24.65, 11.5, 4.1' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    24.00, 11.3, 3.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    23.65, 12.6, 2.6' (O. Miyazaki, 0.32-m Newtonian);

30P/Reinmuth
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 31.13, 18.0, 0.4' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    29.25, 18.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

32P/Comas Sola
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 10.20, 19.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 29.23, 19.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

33P/Daniel
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 03.22, 18.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 26.09, 18.2, 0.3' (G. Pappa, Piemonte,Italy (remote control), 0.3-m Ritchey-Chretien + CCD);
    25.09, 17.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    24.83, 16.7, 0.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);

43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.82, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    13.78, 16.1, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.56, 16.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    02.93, 16.3, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.89, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 28.89, 15.5, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.82, 16.2, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.2' tail in p.a. 50 deg);
    28.81, 15.9, 1.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 42 deg);
    28.80, 16.6, 1.1' (M. Lošťák, 0.2-m Newtonian + CCD);
    27.85, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.58, 16.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.59, 17.1, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.90, 16.5, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    24.81, 16.8, 0.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    22.82, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

49P/Arend-Rigaux
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.73, 15.8, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    16.55, 16.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    15.86, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    12.56, 16.6, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.77, 15.3, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.57, 16.9, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    02.86, 16.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    02.81, 16.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
2024
dec 31.82, 16.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.58, 17.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    27.55, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.83, 17.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    23.08, 17.2, 8' (N. Paul, iTelescope Deep Sky Chile, Rio Hurtado, 0.43-m Schmidt-Cassegrain + CCD);
    22.58, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

50P/Arend
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 27.96, 19.6, 0.2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    26.09, 18.7, 0.2' (G. Pappa, Piemonte,Italy (remote control), 0.3-m Ritchey-Chretien + CCD);

74P/Smirnova-Chernykh
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.87, 18.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

94P/Russell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 24.84, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

130P/McNaught-Hughes
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 05.58, 17.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    02.88, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 30.86, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    30.80, 15.7, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 244 deg);
    29.93, 18.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    26.60, 17.0, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.61, 17.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

154P/Brewington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 04.28, 19.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 29.16, 16.3, 2.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 290 deg);
    25.27, 19.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.90, 18.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    16.66, 18.1, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    10.67, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.61, 18.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 27.03, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

253P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 04.58, 19.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 29.85, 19.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    22.60, 18.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

276P/Vorobjov
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 19.57, 18.0, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    16.58, 17.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    13.58, 17.8, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    11.58, 17.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.60, 17.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 28.88, 17.5, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 277 deg);
    26.63, 17.8, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

305P/Skiff
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 19.54, 17.4, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    16.56, 17.9, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    11.56, 16.8, 0.46' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    04.57, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 27.57, 17.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

333P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 18.68, 15.5, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    17.78, 14.5, 2.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 38 deg);
    12.75, 14.2, 2.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 38 deg);
    10.77, 15.4, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD; 0.7' tail in p.a. 48 deg);
    08.25, 15.2, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.70, 14.9, 0.8' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 1.1' tail in p.a. 42 deg);
    04.84, 16.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    02.87, 15.5, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.79, 13.6, 2.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.04° tail in p.a. 34 deg);
    02.79, 11.6, 3' (C. Labordena, La Serra d Engarcera, 0.2-m Schmidt-Cassegrain);
2024
dec 31.82, 13.9, 1.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 36 deg);
    31.81, 15.1, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.79, 13.1, 3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 30 deg);
    28.79, 14.9, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD; 0.6' tail in p.a. 50 deg);
    28.79, 12.6, 4.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 35 deg);
    28.77, 13.6, 2.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    27.80, 13.7, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.77, 15.5, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 8.6" tail in p.a. 132 deg);
    26.85, 11.0, 4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.85, 12.5, 4.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.09° tail in p.a. 32 deg);
    26.80, 13.1, 1.2' (N. Biver, 0.407-m Newtonian);
    26.79, 13.0, 1.5' (N. Biver, 0.407-m Newtonian);
    26.78, 13.0, 1.5' (N. Biver, 0.407-m Newtonian);
    26.38, 12.7, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    25.72, 14.3, 0.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    25.71, 12.8, 0.5' (W. Hasubick, 0.44-m Newtonian);
    25.12, 12.6, 1.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    24.82, 14.4, 1.13' (K. Hills, 0.5-m Newtonian + CCD);
    24.79, 12.5, -- (C. Violette, 7 Allée Murio, 0.203-m Schmidt-Cassegrain + CCD; 3.75' tail);
    24.39, 12.1, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    23.86, 11.7, 1.8' (E. van Dijk, 0.305-m Schmidt-Cassegrain);
    23.85, 11.2, 4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    23.42, 13.4, 1' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1.2' tail in p.a. 40 deg);
    23.42, 13.4, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1.2' tail in p.a. 40 deg);
    23.42, 14.3, 1' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    22.80, 13.0, 1.5' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1.5' tail in p.a. 33 deg);
    22.80, 12.7, 3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.39, 12.4, 0.5' (O. Miyazaki, 0.32-m Newtonian);

450P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 24.96, 18.2, 0.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);

472P/NEAT-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.61, 16.0, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    17.65, 16.1, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    13.91, 16.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.62, 16.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    08.57, 16.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    07.57, 15.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.66, 16.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 15 deg);
    03.13, 16.0, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 28.80, 16.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    27.75, 15.3, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.73, 15.8, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.16, 16.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

487P/SidingSpring
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.85, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    08.21, 16.1, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD; 0.3' tail in p.a. 138 deg);
    03.91, 16.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 31.89, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.98, 15.7, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 154 deg);
    28.94, 15.6, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 155 deg);
    28.93, 15.8, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 162 deg);
    26.10, 15.9, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 171 deg);
    24.78, 14.5, 0.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    22.86, 15.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

496P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.84, 17.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    13.81, 16.3, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.55, 17.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 28.86, 17.0, 0.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    28.85, 16.4, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 86 deg);
    28.84, 15.3, 2.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 99 deg);
    27.60, 17.1, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.62, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.1' tail in p.a. 67 deg);

C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 18.68, 15.6, 0.8' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    17.70, 16.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    16.72, 16.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    15.62, 16.4, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.58, 16.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.28, 15.1, 2.5' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD; 0.6' tail in p.a. 25 deg);
    05.74, 16.3, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 28.64, 16.2, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.67, 15.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.64, 16.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.59, 16.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.60, 16.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.95, 16.3, 0.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    18.54, 16.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.01, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    16.67, 15.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    15.57, 16.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.94, 15.6, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.56, 15.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    07.56, 15.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    06.55, 15.9, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 91 deg);
    05.68, 15.4, 0.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.64, 16.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    03.16, 17.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    02.88, 14.8, 1.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 97 deg);
    02.00, 16.3, 1' (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
2024
dec 31.91, 14.5, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.09, 14.7, 2.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 143 deg);
    29.01, 14.6, 2.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.55, 15.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.08, 15.4, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.72, 16.1, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.70, 16.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.06, 13.9, 3.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    25.04, 16.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    24.58, 15.5, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 0.6' tail in p.a. 115 deg);
    23.59, 15.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.65, 15.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.70, 17.1, 0.46' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    10.60, 16.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.60, 16.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    06.61, 16.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.71, 17.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 22.56, 16.8, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.25, 15.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    13.07, 14.0, 0.8' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    09.33, 14.3, 1.4' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD; 0.07° tail in p.a. 243 deg);
    05.70, 13.6, 0.7' (C. Wyatt, 0.4-m Newtonian);
    02.87, 14.5, 1' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 4' tail in p.a. 245 deg);
2024
dec 28.25, 14.3, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 10.75, 16.3, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.79, 17.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.82, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    05.70, 16.3, 0.3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
2024
dec 30.82, 17.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    28.76, 15.3, 2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 302 deg);
    28.73, 15.7, 0.9' (M. Lošťák, 0.2-m Newtonian + CCD);

C/2021 S4 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 25.05, 18.8, 0.2' (C. Violette, 7 Allée Murio, 0.203-m Schmidt-Cassegrain + CCD; 0.57' tail);

C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 19.73, 14.1, 0.75' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    18.83, 14.0, 1' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 6.8' tail in p.a. 66 deg);
    17.81, 13.8, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.14° tail in p.a. 66 deg);
    17.41, 12.8, 0.5' (O. Miyazaki, 0.32-m Newtonian);
    16.94, 14.0, 1' (G. Pappa, Piemonte,Italy (remote control), 0.3-m Ritchey-Chretien + CCD);
    12.79, 13.7, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.13° tail in p.a. 69 deg);
    07.86, 14.3, 0.4' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    05.68, 13.4, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 4.6' tail in p.a. 74 deg);
    04.39, 12.7, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    03.88, 13.1, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 3' tail in p.a. 74 deg);
    03.87, 14.6, 0.5' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD; 3.3' tail in p.a. 79 deg);
    02.92, 14.0, 1.32' (K. Hills, 0.5-m Newtonian + CCD);
    02.83, 13.0, 0.7' (C. Harder, Jeersdorf h, 0.252-m Newtonian);
    02.82, 13.4, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.14° tail in p.a. 75 deg);
    02.00, 14.4, 1.9' (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
2024
dec 31.87, 13.3, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    31.40, 12.9, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    28.93, 12.9, 2.2' (P. Dekelver, 0.3-m Newtonian + CCD; 7.4' tail in p.a. 77 deg);
    28.91, 13.5, 1.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 78 deg);
    28.91, 13.4, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.18° tail in p.a. 80 deg);
    28.06, 13.0, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.86, 12.8, 1' (W. Kutschera, 0.508-m Newtonian);
    27.81, 13.9, 0.6' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 2.3" tail in p.a. 226 deg);
    26.90, 13.4, 2.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 80 deg);
    26.87, 12.1, 1.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    25.99, 13.3, 2.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 81 deg);
    24.97, 12.5, 0.81' (C. Violette, 7 Allée Murio, 0.203-m Schmidt-Cassegrain + CCD; 8.63' tail);
    24.77, 13.0, 1.3' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    24.40, 12.9, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    23.95, 12.7, 0.7' (E. van Dijk, 0.305-m Schmidt-Cassegrain);
    23.87, 12.2, 1.3' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    23.63, 13.2, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    22.93, 12.8, 0.8' (C. Harder, Jeersdorf h, 0.252-m Newtonian);
    22.88, 12.9, -- (F. Fremont, Niort, 0.073-m Refractor + CCD);
    22.85, 13.2, 1.1' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 11' tail in p.a. 87 deg);
    22.84, 12.9, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.42, 13.2, 0.6' (O. Miyazaki, 0.32-m Newtonian);

C/2022 L2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.69, 17.1, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    10.32, 16.9, 0.6' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD);
    09.67, 16.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.78, 16.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 28.68, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.83, 16.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    13.75, 15.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 1' tail in p.a. 230 deg);
2024
dec 31.85, 16.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    30.75, 15.1, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.5' tail in p.a. 244 deg);
    29.82, 15.9, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    28.85, 14.9, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.76, 15.4, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 246 deg);
    27.83, 16.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.62, 15.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.64, 15.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.56, 15.3, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 242 deg);
    17.66, 15.0, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 260 deg);
    16.94, 15.5, 0.5' (G. Pappa, Piemonte,Italy (remote control), 0.3-m Ritchey-Chretien + CCD);
    16.60, 15.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    15.58, 15.2, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.98, 14.4, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.63, 15.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    06.56, 15.1, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 251 deg);
    05.68, 14.9, 0.4' (C. Wyatt, 0.4-m Newtonian);
    05.67, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 247 deg);
2024
dec 31.68, 15.3, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 0.4' tail in p.a. 255 deg);
    29.04, 14.9, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1' tail in p.a. 256 deg);
    28.55, 15.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    27.78, 15.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.03, 15.0, 0.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    25.91, 15.1, 0.6' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    25.11, 16.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    23.59, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 252 deg);
    23.26, 15.0, 0.46' (N. Paul, iTelescope Deep Sky Chile, Rio Hurtado, 0.43-m Schmidt-Cassegrain + CCD);
    22.90, 15.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.56, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 243 deg);

C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 19.69, 16.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 144 deg);
    18.59, 16.1, 0.2' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    17.68, 16.4, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    06.59, 16.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.69, 16.8, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    03.05, 17.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 31.97, 17.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2022 U1 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 29.72, 18.3, 0.2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);

C/2022 U3 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 03.14, 19.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 27.06, 19.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    25.93, 18.5, 0.6' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 1' tail in p.a. 309 deg);

C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 18.68, [11.1, -- (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    10.72, 10.3, 2.8' (P. Dekelver, 0.3-m Newtonian + CCD; 7.1' tail in p.a. 49 deg);
    04.69, 10.8, 1.5' (T. Karhula, Virsbo, Sweden, 0.12-m Refractor);
    04.67, 10.9, 1.2' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    02.77, 10.4, 3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.76, 10.1, 1.5' (C. Labordena, La Serra d Engarcera, 0.2-m Schmidt-Cassegrain; 10' tail);
2024
dec 31.76, 9.7, 3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    31.70, 10.6, 1.5' (E. Banach, 0.25-m Newtonian);
    31.68, 11.2, 1.1' (T. Sciezor, 0.06-m Camera lens; 3' tail in p.a. 59 deg);
    31.37, 10.4, 2' (O. Miyazaki, 0.32-m Newtonian);
    30.71, 9.5, 4.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.63° tail in p.a. 67 deg);
    30.69, 11.1, 1' (T. Sciezor, 0.06-m Camera lens; 3' tail in p.a. 61 deg);
    30.37, 10.1, 2.2' (O. Miyazaki, 0.32-m Newtonian);
    29.71, 10.3, 2.5' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    29.68, 10.5, 1.5' (T. Sciezor, 0.06-m Camera lens);
    28.77, 9.6, 1.7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.3° tail in p.a. 60 deg);
    28.73, 9.8, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD; 6.5' tail in p.a. 54 deg);
    28.73, 9.4, 1.7' (A. Kammerer, Oberes Gaistal, Black Forest (Germany), 0.397-m Newtonian; 3' tail in p.a. 45 deg);
    28.71, 9.6, 1.5' (U. Pilz, 0.12-m Refractor);
    28.71, 9.3, 6.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.05° tail in p.a. 69 deg);
    28.70, 10.8, 5.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    28.70, 9.4, 6.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.27° tail in p.a. 57 deg);
    27.78, 9.7, 4.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.77, 9.5, 1.7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.3° tail in p.a. 60 deg);
    27.76, 10.1, 3.2' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 7' tail in p.a. 53 deg);
    26.77, 9.4, 1.7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.3° tail in p.a. 60 deg);
    26.76, 9.7, 2.5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 6' tail in p.a. 50 deg);
    26.75, 9.7, 2.5' (N. Biver, 0.407-m Newtonian; 0.1° tail in p.a. 70 deg);
    26.71, 10.5, 1.2' (E. Banach, 0.25-m Newtonian);
    26.69, 10.8, 1' (T. Sciezor, 0.06-m Camera lens; 5' tail in p.a. 63 deg);
    26.37, 10.1, 2' (O. Miyazaki, 0.32-m Newtonian);
    26.07, 9.5, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    25.76, 10.0, 2.7' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 9' tail in p.a. 53 deg);
    25.71, 10.2, 1.3' (W. Hasubick, 0.44-m Newtonian);
    25.71, 10.2, 3.2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 4.5' tail in p.a. 54 deg);
    24.38, 10.0, 0.9' (Y. Nagai, 0.054-m Camera lens + CCD);
    24.37, 10.2, 1.6' (O. Miyazaki, 0.32-m Newtonian);
    23.78, 9.5, 4.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.78, 9.4, 1.7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.15° tail in p.a. 60 deg);
    23.73, 9.6, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    23.37, 10.4, 1.6' (O. Miyazaki, 0.32-m Newtonian);
    22.97, 9.8, 1.9' (W. Morrison, 0.15-m Refractor);
    22.78, 9.3, 4.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.76, 9.5, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    22.38, 9.8, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    22.37, 9.8, 2' (R. Aikawa, 0.203-m Schmidt-Cassegrain);

C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 09.11, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 29.19, 16.4, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 218 deg);
    29.14, 16.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 220 deg);
    29.14, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    29.00, 17.2, 0.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    28.21, 16.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.15, 16.7, 0.6' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 1.2' tail in p.a. 222 deg);
    23.12, 16.3, 0.19' (C. Violette, 7 Allée Murio, 0.203-m Schmidt-Cassegrain + CCD; 0.3' tail);

C/2023 Q1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.35, 15.7, 0.33' (N. Paul, iTelescope Observatory, Beryl Junction (MPC U94), 0.25-m Newtonian + CCD);
    10.79, 15.6, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    09.88, 15.9, 0.5' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    09.74, 15.4, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 0.7' tail in p.a. 283 deg);
    07.94, 15.5, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.90, 16.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    06.31, 13.9, 5.8' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 1.3' tail in p.a. 267 deg);
    05.69, 15.5, 0.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    03.14, 15.4, 0.6' (A. Pearce, Sierra de Segura, Spain, 0.43-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 276 deg);
    02.78, 15.4, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    02.75, 14.4, 2.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 285 deg);
    02.55, 14.7, 1' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 2.5' tail in p.a. 290 deg);
    01.89, 16.0, 0.4' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
2024
dec 31.93, 15.4, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    31.79, 14.9, 1.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 292 deg);
    30.35, 13.8, 5.7' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 1.9' tail in p.a. 283 deg);
    29.12, 16.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    29.08, 13.8, 5.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.5' tail in p.a. 286 deg);
    28.88, 13.4, 4.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.9' tail in p.a. 295 deg);
    28.82, 11.7, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    28.75, 15.4, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.14, 15.6, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.94, 15.6, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 1.8' tail in p.a. 292 deg);
    27.90, 14.4, 3.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.6' tail in p.a. 286 deg);
    27.81, 11.6, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    27.52, 15.4, 0.7' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    26.94, 14.4, 3.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    25.96, 14.1, 4.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 288 deg);
    25.23, 16.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    25.07, 15.7, 0.6' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    23.46, 14.1, 5.4' (T. Lehmann, Utah (remote), 0.28-m Newtonian + CCD; 2.3' tail in p.a. 286 deg);
    22.88, 15.6, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 09.81, 17.2, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
2024
dec 30.76, 17.6, 0.4' (T. Lehmann, Weimar, 0.3-m Newtonian + CCD);
    28.83, 17.1, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 17.74, 16.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.77, 16.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
2024
dec 28.74, 17.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.23, 17.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.28, 17.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    22.75, 16.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);

C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.91, 19.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    06.86, 19.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 27.83, 18.3, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 3.4" tail in p.a. 253 deg);
    25.23, 19.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 18.58, 16.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    16.62, 16.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    15.59, 16.1, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    11.85, 16.0, 0.5' (G. Pappa, Namibia (remote control), 0.36-m Ritchey-Chretien + CCD);
    10.58, 16.1, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.65, 17.1, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.31, 16.1, 0.6' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD);
    06.98, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    06.58, 15.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.75, 16.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    03.09, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 31.95, 16.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.16, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    29.05, 16.8, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 218 deg);
    28.66, 16.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.10, 16.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2024 B1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.27, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 29.23, 13.7, 4.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    29.22, 15.6, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    26.23, 15.8, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 353 deg);

C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 16.26, 18.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2024 G3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.96, 2.4, 4' (M. Goiato, 7x50 Binoculars; 6° tail in p.a. 105 deg);
    19.40, 1.0, -- (D. Edwards, Peak Crossing, Queensland, Australia, 10x50 Binoculars; 5° tail in p.a. 110 deg);
    18.96, -0.6, 2' (M. Goiato, 20x100 Binoculars; 3° tail in p.a. 100 deg);
    18.96, -0.9, -- (M. Goiato, 0.007-m Naked eye; 4° tail in p.a. 100 deg);
    18.96, -0.8, 2' (M. Goiato, 7x50 Binoculars; 4° tail in p.a. 100 deg);
    18.94, 0.0, 2' (W. Souza, Sao Paulo - SP, Brazil, 10x50 Binoculars; 0.5° tail);
    17.75, -1.0, -- (A. Russo, Gibraltar, 15x50 Binoculars; 0.5° tail);
    17.43, -0.8, -- (J. Pile, San Rafael, Bulacan, Philippines, Naked eye; 2.5° tail in p.a. 90 deg);
    17.43, -1.0, 2' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 2° tail in p.a. 90 deg);
    17.34, -0.5, 1' (Y. Nagai, 20x100 Binoculars; 0.3° tail in p.a. 85 deg);
    16.99, -1.0, -- (B. Young, Tulsa OK USA, 8x40 Binoculars);
    16.75, -1.5, -- (A. Russo, Gibraltar, 15x50 Binoculars; 0.5° tail);
    16.58, -0.5, -- (A. Ansari, tehran, 0.03-m Camera lens + CCD);
    16.42, -0.8, 2' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 1° tail in p.a. 85 deg);
    16.39, -1.5, 1.9' (T. Lovejoy, 0.075-m Camera lens + CCD);
    16.36, -1.5, -- (S. Yoshida, 0.066-m Refractor; 0.3° tail in p.a. 75 deg);
    16.23, -1.4, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    16.12, -1.3, 1.5' (C. Hergenrother, 10x50 Binoculars; 0.5° tail);
    16.10, -1.5, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    16.02, -1.8, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    15.93, -1.2, 1.5' (M. Goiato, 20x100 Binoculars; 0.2° tail in p.a. 70 deg);
    15.93, -1.4, 1.5' (M. Goiato, 7x50 Binoculars; 0.3° tail in p.a. 70 deg);
    15.74, -1.5, 1.2' (J. Gonzalez Suarez, 10x50 Binoculars; 0.25° tail in p.a. 80 deg);
    15.38, -1.5, -- (B. Ai, OUCFivekidsMountain(FKMountain), 20x80 Binoculars; 0.2° tail);
    15.25, -2.6, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    15.15, -2.7, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    15.12, -2.5, -- (C. Hergenrother, Naked eye);
    15.10, -2.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    15.08, -2.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    15.06, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    15.04, -2.9, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    15.04, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    15.02, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    15.00, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.98, -2.8, 1.3' (T. Lovejoy, 0.05-m Camera lens + CCD);
    14.98, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.95, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.94, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.91, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.90, -2.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.85, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.83, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.81, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.79, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.77, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.75, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.73, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.72, [-2.0, 1' (C. Labordena, La Vall de Alba, 10x50 Binoculars; 10' tail);
    14.70, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.69, -2.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.67, -1.5, -- (A. Kammerer, Karlsruhe, Germany, 9x63.0 Binoculars; 0.15° tail in p.a. 50 deg);
    14.66, -2.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.65, -2.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.64, -2.5, 0.5' (B. Granslo, Skogen, Oslo, Norway, 10x42.0 Binoculars; 0.1° tail in p.a. 50 deg);
    14.62, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.60, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.58, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.56, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.54, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.52, -2.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.50, -2.9, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.48, -2.9, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.45, -3.0, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.45, -3.0, 0.2' (P. Guzik, 25x100 Binoculars; 2' tail in p.a. 40 deg);
    14.44, -3.1, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.41, -3.1, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.40, -3.1, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.37, -3.2, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.35, -3.2, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.33, -3.3, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.31, -3.3, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.29, -3.3, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.27, -3.3, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.25, -3.3, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.23, -3.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.20, -3.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.19, -3.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.16, -3.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.15, -3.4, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.12, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.10, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.08, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.06, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.04, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.02, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    14.00, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.98, -3.5, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.96, -1.8, 1' (T. Lovejoy, 0.05-m Camera lens + CCD);
    13.95, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.94, -3.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.91, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.90, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.85, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.83, -3.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.81, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.79, -3.6, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.77, -3.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.75, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.73, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.70, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.69, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.66, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.65, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.62, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.60, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.58, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.56, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.54, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.52, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.50, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.48, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.45, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.44, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.41, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.40, -3.8, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.35, -3.7, 38' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.33, -3.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.31, -3.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.29, -3.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.27, -3.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.25, -3.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.23, -3.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.20, -3.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.19, -3.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.16, -3.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.15, -3.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.12, -3.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.10, -3.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.08, -3.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.06, -3.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.04, -3.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.02, -3.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    13.00, -3.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.98, -3.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.95, -3.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.94, -3.1, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.91, -3.1, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.90, -3.1, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.85, -3.0, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.83, -3.0, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.81, -2.9, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.79, -2.8, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.77, -2.8, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.75, -2.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.73, -2.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.70, -2.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.69, -2.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.66, -2.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.65, -2.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.62, -2.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.60, -2.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.58, -2.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.56, -2.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.54, -2.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.52, -2.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.51, -2.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.50, -2.3, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.48, -2.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.45, -2.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.44, -2.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.40, -2.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.37, -2.2, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.35, -2.1, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.33, -2.0, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.31, -1.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    12.29, -1.0, -- (C. Harder, Bullerberg, Westerholz, 10x50 Binoculars; 5' tail in p.a. 280 deg);
    12.00, -1.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.98, -1.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.95, -1.9, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.94, -1.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.91, -1.7, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.90, -1.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.85, -1.6, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.83, -1.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.81, -1.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.79, -1.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.77, -1.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.75, -1.5, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.73, -1.4, 37.3' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.65, -1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.60, -1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.58, -1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.56, -1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.54, -1.1, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.52, -1.0, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.50, -0.9, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.48, -1.0, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.45, -0.9, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.44, -0.8, 28' (M. Paradowski, SOHO, 0.008-m Coronagraph + CCD);
    11.28, -1.0, 1' (V. Gonano, Udine, Italy, 20x80 Binoculars; 10' tail in p.a. 280 deg);
    11.13, [-2.5, -- (J. Xiong, Ocean University of China, Nonex80 Binoculars);
    10.89, -1.0, 1' (R. Aikawa, 7x50 Binoculars; 10' tail in p.a. 290 deg);
    10.89, -1.2, 1' (O. Miyazaki, 18x50 Binoculars; 5' tail in p.a. 280 deg);
    10.88, -1.0, 1' (Y. Nagai, 0.02-m Camera lens + CCD; 0.1° tail in p.a. 275 deg);
    09.91, -0.2, 1.6' (K. Yoshimoto, 0.077-m Camera lens + CCD; 7' tail in p.a. 275 deg);
    09.23, <0.5, 1' (G. Pappa, Trecastagni,Sicily, 0.3-m Camera lens + CCD; 10' tail);
    08.34, 0.2, 2.5' (M. Goiato, 7x50 Binoculars; 0.2° tail in p.a. 265 deg);
    07.76, 0.1, 1.5' (R. Kaufman, 0.057-m Camera lens + CCD; 24' tail in p.a. 263 deg);
    07.34, 0.7, 3' (M. Goiato, 7x50 Binoculars; 0.3° tail in p.a. 260 deg);
    06.76, 1.6, 2.8' (T. Lovejoy, 0.055-m Camera lens + CCD; 40' tail in p.a. 254 deg);
    06.37, 1.3, 2.2' (T. Lovejoy, 0.038-m Camera lens + CCD; 23' tail in p.a. 256 deg);
    06.33, 1.0, 3.5' (M. Goiato, 7x50 Binoculars; 0.5° tail in p.a. 255 deg);
    06.33, 0.9, -- (M. Goiato, 0.007-m Naked eye);
    05.92, 1.5, 2' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 0.5° tail in p.a. 250 deg);
    05.77, 1.6, 2.2' (T. Lovejoy, 0.075-m Camera lens + CCD; 4' tail in p.a. 252 deg);
    05.75, 1.5, 1.8' (C. Wyatt, 15x70 Binoculars; 14.5' tail in p.a. 252 deg);
    05.37, 1.4, 2.6' (T. Lovejoy, 0.25-m Newtonian + CCD; 27' tail in p.a. 251 deg);
    05.34, 1.8, 2.5' (M. Goiato, 20x100 Binoculars; 0.3° tail in p.a. 250 deg);
    05.34, 1.6, 3.5' (M. Goiato, 7x50 Binoculars; 0.5° tail in p.a. 250 deg);
    04.76, 1.9, 3.5' (T. Lovejoy, 0.075-m Camera lens + CCD; 21' tail in p.a. 252 deg);
    04.38, 1.9, 2.2' (K. Yoshimoto, 0.065-m Camera lens + CCD; 8' tail in p.a. 252 deg);
    04.37, 1.9, 2' (T. Lovejoy, 0.25-m Newtonian + CCD; 18' tail in p.a. 251 deg);
    04.37, 2.3, 1.69' (N. James, 0.038-m Refractor + CCD);
    04.33, 2.1, 3' (M. Goiato, 7x50 Binoculars; 0.5° tail in p.a. 250 deg);
    04.33, 2.2, 2' (M. Goiato, 20x100 Binoculars; 0.3° tail in p.a. 250 deg);
    04.32, 1.9, -- (L. Camargo da Silva, Lages, Santa Catarina, Brazil, 0.005-m Naked eye; 0.5° tail in p.a. 255 deg);
    03.76, 2.2, 2.5' (T. Lovejoy, 0.075-m Camera lens + CCD; 18' tail in p.a. 247 deg);
    03.76, 2.0, 3' (M. Mattiazzo, Swan Hill, Victoria, 8x40 Binoculars; 15' tail in p.a. 250 deg);
    03.74, 2.4, 2' (R. Kaufman, 0.057-m Camera lens + CCD; 6' tail in p.a. 247 deg);
    03.37, 2.7, 2' (T. Lovejoy, 0.25-m Newtonian + CCD; 6' tail in p.a. 248 deg);
    03.37, 2.8, 2' (K. Yoshimoto, 0.065-m Camera lens + CCD; 10' tail in p.a. 248 deg);
    03.36, 2.9, 1.69' (N. James, 0.038-m Refractor + CCD);
    03.35, 2.3, 1.8' (M. Mašek, Malargue, Argentina, 0.3-m Cassegrain reflector + CCD; 15.7' tail in p.a. 249 deg);
    03.35, 2.7, 1.8' (M. Mašek, Malargue, Argentina, 0.3-m Cassegrain reflector + CCD; 17.6' tail in p.a. 245 deg);
    03.32, 2.0, 3' (A. Amorim, Florianopolis (Brazil), 10x5.0 Binoculars; 0.3° tail in p.a. 270 deg);
    02.76, 3.7, 2.2' (T. Lovejoy, 0.075-m Camera lens + CCD; 16' tail in p.a. 242 deg);
    02.36, 4.6, 1.69' (N. James, 0.038-m Refractor + CCD; 23' tail in p.a. 247 deg);
    01.73, 4.7, 1.3' (R. Kaufman, 0.057-m Camera lens + CCD; 9' tail in p.a. 246 deg);
    01.34, 4.6, 1.8' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 15.7' tail in p.a. 242 deg);
    01.34, 5.2, 1.8' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 14.3' tail in p.a. 245 deg);
2024
dec 31.76, 4.9, 2' (T. Lovejoy, 0.075-m Camera lens + CCD; 6' tail in p.a. 237 deg);
    31.36, 5.1, 1.69' (N. James, 0.038-m Refractor + CCD; 23' tail in p.a. 245 deg);
    31.32, 4.9, 2' (M. Goiato, 20x100 Binoculars; 0.2° tail in p.a. 240 deg);
    31.32, 4.8, 1' (W. Souza, Atibaia SP, 7x50 Binoculars);
    30.37, 5.5, 1.9' (K. Yoshimoto, 0.065-m Camera lens + CCD; 7' tail in p.a. 240 deg);
    30.36, 5.4, 2.26' (N. James, 0.038-m Refractor + CCD; 18' tail in p.a. 240 deg);
    30.32, 5.1, 2' (M. Goiato, 20x100 Binoculars; 0.2° tail in p.a. 235 deg);
    29.71, 5.6, 2' (R. Kaufman, 0.057-m Camera lens + CCD; 6' tail in p.a. 235 deg);
    29.35, 5.5, 2' (M. Mattiazzo, 0.038-m Camera lens + CCD; 7' tail in p.a. 231 deg);
    29.32, 5.5, 1' (W. Souza, Atibaia SP, 7x50 Binoculars);
    29.32, 5.3, 2' (M. Goiato, 20x100 Binoculars; 0.2° tail in p.a. 240 deg);
    29.31, 6.1, -- (W. Souza, Atibaia SP, 0.73-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    28.36, 5.8, 1.6' (M. Mattiazzo, 0.25-m Newtonian + CCD; 11' tail in p.a. 229 deg);
    28.35, 6.0, 1.69' (N. James, 0.038-m Refractor + CCD);
    27.72, 5.9, 2' (R. Kaufman, 0.057-m Camera lens + CCD; 10.5' tail in p.a. 228 deg);
    27.36, 5.9, 1.5' (M. Mattiazzo, 0.25-m Newtonian + CCD; 7.5' tail in p.a. 227 deg);
    26.72, 6.0, 2.3' (C. Wyatt, 15x50 Binoculars; 10' tail in p.a. 234 deg);
    26.36, 6.2, 1.3' (M. Mattiazzo, 0.25-m Newtonian + CCD; 10.7' tail in p.a. 221 deg);
    26.33, 6.1, 1.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 6.3' tail in p.a. 225 deg);
    26.33, 6.5, 1.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 8.6' tail in p.a. 224 deg);
    25.74, 6.1, 2.6' (T. Lovejoy, 0.075-m Camera lens + CCD; 12' tail in p.a. 216 deg);
    25.37, 6.5, 1.6' (K. Yoshimoto, 0.25-m Newtonian + CCD; 8' tail in p.a. 220 deg);
    25.35, 6.3, 1.69' (N. James, 0.038-m Refractor + CCD; 13' tail in p.a. 216 deg);
    25.35, 6.2, 1.3' (M. Mattiazzo, 0.25-m Newtonian + CCD; 10' tail in p.a. 221 deg);
    24.74, 6.3, 2' (T. Lovejoy, 0.075-m Camera lens + CCD; 12.5' tail in p.a. 217 deg);
    24.35, 6.5, 2.26' (N. James, 0.038-m Refractor + CCD; 14' tail in p.a. 216 deg);
    24.35, 6.5, 1.5' (T. Lovejoy, 0.25-m Newtonian + CCD; 8' tail in p.a. 217 deg);
    24.33, 6.7, 1.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 8.3' tail in p.a. 220 deg);
    24.33, 7.1, 1.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 8.3' tail in p.a. 220 deg);
    24.30, 6.2, 2' (J. de Souza Aguiar, 25x100 Binoculars; 0.1° tail);
    23.74, 6.5, 2' (T. Lovejoy, 0.075-m Camera lens + CCD; 7.5' tail in p.a. 216 deg);
    23.72, 6.5, 2.2' (C. Wyatt, 15x50 Binoculars; 15' tail in p.a. 232 deg);
    23.36, 6.9, 1.2' (T. Lovejoy, 0.25-m Newtonian + CCD; 7' tail in p.a. 213 deg);
    22.35, 6.9, 1.5' (T. Lovejoy, 0.25-m Newtonian + CCD; 13' tail in p.a. 210 deg);
    22.33, 7.0, 1.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 7.6' tail in p.a. 215 deg);
    22.33, 7.3, 1.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 6.8' tail in p.a. 212 deg);

C/2024 J2 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 10.74, 15.6, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.71, 16.8, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
2024
dec 28.78, 16.4, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.73, 15.2, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 354 deg);
    28.73, 15.4, 1.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 7 deg);
    27.77, 17.4, 0.21' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    25.75, 16.1, 0.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);

C/2024 M1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 19.74, 16.2, -- (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.86, 16.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    12.81, 16.4, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    10.75, 16.3, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    09.90, 16.1, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    03.92, 16.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    02.85, 16.3, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    02.83, 15.4, 0.4' (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
2024
dec 31.84, 16.0, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    30.87, 15.9, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.97, 15.8, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.96, 15.4, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.95, 16.1, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    28.05, 15.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.94, 15.9, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    26.97, 15.9, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    26.83, 14.4, -- (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.13, 15.6, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    23.89, 14.9, -- (E. van Dijk, 0.305-m Schmidt-Cassegrain);
    23.47, 15.3, 0.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    22.90, 15.4, -- (C. Harder, Jeersdorf h, 0.252-m Newtonian);

C/2024 N4 (Sarneczky)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 03.24, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
2024
dec 25.24, 18.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2024 X1 (Fazekas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 23.95, 20.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2024 Y1 (Masek)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 18.06, 15.6, 1.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    15.61, 16.9, 1.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    11.85, 15.0, 1.3' (G. Pappa, Namibia (remote control), 0.36-m Ritchey-Chretien + CCD);
    09.56, 14.9, 1.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.55, 15.1, 1.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.10, 15.6, 1.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    05.09, 15.2, 1.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    02.12, 14.9, 2.1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
    02.12, 16.5, 1' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
2024
dec 29.08, 14.1, 2.3' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    28.43, 15.5, 1' (K. Yoshimoto, 0.51-m Newtonian + CCD);
    28.14, 14.6, 1.6' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);
    28.07, 14.6, 2' (M. Mattiazzo, Chile, 0.43-m Schmidt-Cassegrain + CCD);
    27.08, 14.4, 2.8' (M. Mašek, Paranal, 0.067-m Camera lens + CCD);
    26.12, 14.7, 1.4' (M. Mašek, Malargue, 0.107-m Camera lens + CCD);

P/2015 CD60 (LINEAR)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 15.81, 18.0, 0.4' (G. Pappa, Piemonte,Italy (remote control), 0.3-m Ritchey-Chretien + CCD);
2024
dec 24.56, 17.8, 0.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    23.54, 18.1, 0.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    22.51, 18.0, 0.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);

P/2023 S1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jan 20.64, 15.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    17.72, 15.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.68, 16.1, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 305 deg);
    09.30, 14.4, 3' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD; 0.12° tail in p.a. 293 deg);
    08.23, 15.3, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 1.4' tail in p.a. 292 deg);
    05.80, 15.8, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 283 deg);
    04.24, 16.1, 0.75' (K. Hills, 0.5-m Newtonian + CCD);
    01.03, 15.8, 0.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 2.3' tail in p.a. 293 deg);
2024
dec 29.93, 15.9, 1' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 2.9' tail in p.a. 293 deg);
    29.18, 14.8, 2.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 293 deg);
    29.12, 15.1, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 298 deg);
    28.70, 16.1, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.16, 15.9, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.20, 15.1, 2.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 292 deg);
    25.20, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    25.11, 16.7, 0.44' (C. Violette, 7 Allée Murio, 0.203-m Schmidt-Cassegrain + CCD; 1.31' tail);
    25.02, 16.2, 0.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    22.71, 16.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 295 deg);

P/2024 T2 (Rankin)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
dec 28.12, 18.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);