12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 24.70, 18.5, 0.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.70, 18.1, 0.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.73, 17.9, 0.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 09.34, 16.7, 0.6' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
mar 26.19, 16.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.83, 13.8, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    12.48, 14.6, 1' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    09.89, 15.0, 1.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    05.49, 13.0, 1.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    04.93, 14.0, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.84, 12.5, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.83, 14.8, 0.77' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    04.58, 13.8, 1.2' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    03.89, 13.1, 2.1' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    03.86, 11.5, 3.9' (E. Bryssinck, 0.4-m Newtonian + CCD);
    03.85, 13.7, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.82, 12.8, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.88, 12.7, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    01.93, 12.7, 2.2' (W. Kutschera, 0.508-m Newtonian);
    01.86, 12.2, 0.7' (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
    01.85, 10.9, 5.7' (E. Bryssinck, 0.4-m Newtonian + CCD);
    01.54, 14.7, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.82, 11.6, 3.9' (E. Bryssinck, 0.4-m Newtonian + CCD);
    31.63, 14.2, 0.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.85, 10.9, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    30.50, 14.1, 0.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    29.92, 12.0, 5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    29.84, 13.5, 1.8' (M. Paradowski, 0.15-m Newtonian + CCD);
    29.83, 11.4, 4.5' (E. Bryssinck, 0.4-m Newtonian + CCD);
    29.82, 14.2, 1.8' (M. Paradowski, 0.15-m Newtonian + CCD);
    29.03, 13.5, 1.88' (K. Hills, 0.5-m Newtonian + CCD);
    28.93, 12.2, 3.7' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    28.76, 15.5, 0.58' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.7' tail in p.a. 38 deg);
    27.88, 12.4, 2.4' (W. Kutschera, 0.25-m Newtonian);
    27.87, 13.3, 1.5' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    27.85, 11.4, 4.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    27.82, 12.7, 5.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.90, 12.3, 2.82' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    26.67, 12.9, 1.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.51, 11.7, 3.8' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    26.05, 11.7, 4.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.85, 14.6, 0.6' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    25.85, 13.9, 1.6' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    25.81, 12.0, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 47 deg);
    25.63, 13.9, 0.8' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.95, 11.8, 4.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    24.91, 12.2, 2.07' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    24.62, 13.8, 1' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.51, 11.8, 3.7' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    23.93, 12.2, 4.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.94, 15.5, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.6' tail in p.a. 50 deg);
    22.85, 13.2, 2.8' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    22.82, 13.8, 1.5' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    22.79, 11.0, 5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    22.50, 13.5, 1.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.50, 11.8, 4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    22.01, 11.6, 4.51' (K. Hills, 0.5-m Newtonian + CCD);
    21.88, 10.9, 12' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    21.87, 13.0, 3.4' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    21.85, 13.6, 1.6' (C. Harder, Reinsehlen, 0.531-m Newtonian);
    21.47, 11.9, 3.5' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    20.93, 15.7, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    20.90, 13.5, 1.5' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    20.90, 11.3, 5.64' (K. Hills, 0.5-m Newtonian + CCD);
    20.87, 13.5, 1.8' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    20.78, 11.2, 8.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.64, 11.3, 3.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.46, 12.4, 2.2' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    19.92, 11.7, 15' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.89, 13.5, 1.8' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    19.87, 13.6, 2.2' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    19.87, 11.3, 6.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    19.87, 12.2, 6.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    19.86, 11.2, 4' (M. Uhlar, Dablice, 0.3-m Newtonian + CCD);
    19.84, 13.7, 1.5' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    19.57, 11.5, 3.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.95, 11.1, 12' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    18.94, 10.8, 14' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    18.89, 13.4, 2' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    18.88, 12.8, 2.4' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    18.87, 12.1, 4.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.84, 13.1, 1.6' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    17.94, 11.2, 11' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    17.90, 12.7, 1.5' (G. Pappa, Piemonte,Italy (remote control), 0.14-m Refractor + CCD);
    17.90, 12.8, 2.9' (T. Sciezor, Cracow, 0.06-m Camera lens + CCD);
    17.89, 13.1, 1.7' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD);
    17.86, 11.6, 3.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    17.82, 13.2, 1.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.82, 10.5, 5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    15.86, 16.5, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.9' tail in p.a. 23 deg);
    14.97, 12.1, 3.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


30P/Reinmuth
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 05.99, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


33P/Daniel
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 21.00, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 28.81, 17.1, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD);
    27.81, 16.1, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    18.80, 16.7, 0.39' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    16.80, 16.2, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


49P/Arend-Rigaux
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 31.44, 14.7, 1.3' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    21.76, 15.6, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.80, 13.6, 3.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    17.79, 13.8, 2.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 81 deg);
    17.79, 13.7, 2.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 31.74, 17.0, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.76, 16.5, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.75, 16.5, 0.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 05.50, 17.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    04.88, 18.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    01.55, 17.5, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.64, 18.4, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    27.07, 18.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    26.60, 17.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.50, 17.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.52, 17.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.51, 17.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.58, 18.2, 0.41' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


195P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 31.91, 17.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


234P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 05.17, 19.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 18.77, 18.1, 0.31' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);


363P/Lemmon
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 27.23, 20.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


472P/NEAT-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 06.50, 16.9, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.53, 17.3, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.55, 17.6, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.87, 16.6, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    19.51, 16.5, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.90, 16.0, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 349 deg);
    18.83, 16.3, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    16.84, 16.9, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 14 deg);


496P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.85, 16.1, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.88, 16.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.90, 16.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
mar 29.88, 14.3, 3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.88, 16.8, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.79, 16.2, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD);
    21.84, 14.3, 3.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    19.81, 15.1, 2' (M. Lošťák, 0.2-m Newtonian + CCD);
    19.81, 14.7, 1.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    18.88, 14.7, 0.8' (W. Kutschera, 0.508-m Newtonian);
    18.87, 14.2, 3.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    17.86, 13.8, 4.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 100 deg);
    15.94, 16.0, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD);
    14.89, 15.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


497P/Spacewatch-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 09.04, 19.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


499P/Catalina
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 19.88, 16.9, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 07.51, 15.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    02.51, 15.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    01.50, 15.8, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 30.56, 16.0, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.55, 15.7, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.52, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);


C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 04.81, 16.8, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.83, 17.0, 0.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
mar 27.85, 15.4, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    25.85, 17.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.83, 16.9, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    20.88, 15.8, 2.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 122 deg);
    20.81, 15.8, 0.43' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    18.83, 16.4, 0.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    17.90, 15.9, 1.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 146 deg);
    17.82, 15.6, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 06.55, 16.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    05.52, 16.7, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    01.48, 16.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.48, 16.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.53, 15.8, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.50, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    23.57, 17.2, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.54, 16.1, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 111 deg);
    19.60, 16.7, 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
apr 06.54, 17.8, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    01.51, 17.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.50, 17.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.59, 17.2, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.56, 17.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.59, 17.0, 0.31' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.55, 17.6, 0.5' (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
apr 13.08, 14.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    10.65, 14.0, 1.1' (A. Pearce, Nedlands, 0.05-m Refractor + CCD);
    07.74, 13.8, 1.3' (K. Harikae, 0.15-m Newtonian + CCD);
    07.15, 11.6, 2' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    06.74, 13.8, 1.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 8.3' tail in p.a. 237 deg);
    06.27, 11.9, 1' (M. Goiato, 0.22-m Newtonian);
    04.98, 14.1, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.5' tail in p.a. 237 deg);
    04.95, 14.0, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.5' tail in p.a. 240 deg);
    04.74, 13.8, 1' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD; 10.1' tail in p.a. 237 deg);
    04.07, 11.5, 2.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    02.94, 14.2, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.1' tail in p.a. 244 deg);
    02.14, 12.9, 1.1' (W. Kutschera, 0.508-m Newtonian);
    01.65, 13.7, 1.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 5.8' tail in p.a. 237 deg);
mar 31.68, 13.7, 1.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 7.7' tail in p.a. 238 deg);
    30.64, 14.0, 0.8' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.03, 13.5, 1.2' (M. Paradowski, 0.15-m Newtonian + CCD);
    30.01, 13.7, 1.2' (M. Paradowski, 0.15-m Newtonian + CCD);
    29.06, 15.7, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD);
    28.06, 13.8, 1.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.2° tail in p.a. 237 deg);
    27.47, 13.5, 1.2' (M. Olason, Arizona, 0.05-m Refractor + CCD; 2.1' tail in p.a. 242 deg);
    26.66, 13.7, 1.2' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 4.1' tail in p.a. 242 deg);
    26.13, 13.8, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.68, 14.1, 0.8' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.68, 13.6, 1.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 4.5' tail in p.a. 240 deg);
    23.69, 13.9, 0.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 4.4' tail in p.a. 244 deg);
    23.03, 15.2, 0.38' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.66, 13.6, 1.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 3.2' tail in p.a. 239 deg);
    22.04, 13.0, 1' (C. Harder, Reinsehlen, 0.531-m Newtonian);
    19.31, 13.6, 0.8' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.80, 15.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.80, 15.1, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 53 deg);
    03.79, 15.2, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 51 deg);
mar 28.89, 16.3, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.6' tail in p.a. 54 deg);
    28.81, 14.2, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 61 deg);
    26.82, 15.1, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    25.83, 14.9, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 50 deg);
    22.82, 14.3, 0.48' (S. Shurpakov, 0.41-m Newtonian + CCD; 5.3' tail in p.a. 63 deg);
    22.82, 14.8, 0.4' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    22.80, 14.4, 0.8' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 2.7' tail in p.a. 64 deg);
    21.82, 15.2, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 53 deg);
    21.81, 14.4, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 61 deg);
    20.85, 15.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.84, 14.2, 1.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.13° tail in p.a. 65 deg);
    19.82, 14.5, 0.4' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    18.81, 14.6, 1' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 7.7' tail in p.a. 63 deg);
    18.79, 14.3, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 63 deg);
    18.00, 14.7, 0.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.86, 14.4, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 62 deg);
    16.82, 14.2, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 1.2' tail in p.a. 55 deg);
    16.78, 14.3, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.14° tail in p.a. 65 deg);


C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.81, 15.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.49, 15.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    04.91, 15.9, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.82, 15.9, 0.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.80, 16.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.10, 16.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    01.82, 15.0, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD);
mar 31.52, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.52, 15.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.86, 16.1, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    28.82, 15.1, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    27.82, 14.9, 0.5' (E. Bryssinck, 0.4-m Newtonian + CCD);
    26.49, 15.4, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.54, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.53, 14.9, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.88, 15.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.89, 15.9, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD);
    21.84, 15.9, 0.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 229 deg);
    20.87, 15.2, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 237 deg);
    20.55, 14.8, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.49, 15.0, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.90, 15.3, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.2' tail in p.a. 231 deg);
    18.83, 15.2, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 232 deg);
    16.84, 15.1, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.1' tail in p.a. 232 deg);
    15.91, 16.2, 0.24' (S. Shurpakov, 0.41-m Newtonian + CCD);
    14.93, 15.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 31.90, 17.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    31.58, 16.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.59, 16.3, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.52, 16.1, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.53, 15.8, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.61, 15.7, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.61, 16.4, 0.3' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.60, 16.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.62, 15.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 13.07, 13.6, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    09.31, 15.8, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    07.73, 13.9, 0.9' (K. Harikae, 0.15-m Newtonian + CCD);
    05.18, 11.5, 4.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.18, 12.3, 3.2' (K. Hills, 0.5-m Newtonian + CCD);
    04.09, 14.7, 0.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    04.08, 12.3, 4.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    04.08, 11.3, 4.6' (M. Lošťák, 0.2-m Newtonian + CCD);
mar 30.45, 13.3, 1.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1.2' tail in p.a. 273 deg);
    29.03, 14.8, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    28.13, 11.2, 6.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.47° tail in p.a. 86 deg);
    26.17, 10.8, 6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.06, 14.7, 0.43' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.7' tail in p.a. 320 deg);
    22.14, 11.0, 7.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.15° tail in p.a. 86 deg);
    20.15, 11.2, 9.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.15, 10.8, 8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.87° tail in p.a. 84 deg);
    18.16, 10.7, 9.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 294 deg);
    16.07, 14.8, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.6' tail in p.a. 289 deg);


C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 01.59, 16.6, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.61, 16.0, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 101 deg);
    30.69, 16.4, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.59, 16.6, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.64, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.64, 16.2, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.24, 15.6, 0.3' (M. Olason, Arizona, 0.091-m Refractor + CCD);
    23.65, 16.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.65, 16.6, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 102 deg);
    20.67, 16.2, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.64, 16.4, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.84, 16.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.5' tail in p.a. 182 deg);
    08.86, 15.8, 0.5' (E. Bryssinck, 0.4-m Newtonian + CCD);
    04.97, 17.7, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 189 deg);
    04.89, 16.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    04.83, 16.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 185 deg);
    03.94, 17.2, 0.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.94, 16.2, 0.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.90, 16.5, 0.39' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 2.6' tail in p.a. 188 deg);
    03.83, 17.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.5' tail in p.a. 184 deg);
    02.91, 16.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 186 deg);
mar 29.99, 16.3, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 190 deg);
    28.98, 17.5, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.5' tail in p.a. 185 deg);
    28.00, 16.4, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 192 deg);
    27.89, 16.2, 0.3' (E. Bryssinck, 0.4-m Newtonian + CCD; 1.6' tail in p.a. 190 deg);
    27.86, 16.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 189 deg);
    26.65, 16.3, 0.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1.2' tail in p.a. 195 deg);
    25.89, 16.3, 0.4' (D. Heggie, Edinburgh, Scotland, 0.114-m Prime focus of a reflector + CCD; 0.8' tail in p.a. 193 deg);
    23.95, 16.6, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.09, 17.4, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD; 2' tail in p.a. 199 deg);
    22.81, 16.1, 0.6' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 1.3' tail in p.a. 194 deg);
    21.07, 16.2, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 194 deg);
    20.94, 16.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    20.00, 16.3, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 195 deg);
    19.91, 17.4, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    19.91, 16.2, 0.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    19.86, 15.9, 0.2' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    19.00, 16.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD; 5" tail in p.a. 190 deg);
    18.86, 15.9, 0.2' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    18.07, 16.2, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 197 deg);
    18.02, 16.2, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 196 deg);
    17.91, 16.0, 0.4' (G. Pappa, Piemonte,Italy (remote control), 0.14-m Refractor + CCD);
    17.83, 15.8, 0.25' (C. Harder, Jeersdorf f, 0.531-m Newtonian; 1' tail in p.a. 180 deg);


C/2023 Q1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 04.85, 17.6, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.92, 17.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    01.01, 17.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
mar 29.94, 16.2, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1' tail in p.a. 297 deg);
    27.94, 16.2, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 293 deg);
    27.88, 16.3, 0.5' (E. Bryssinck, 0.4-m Newtonian + CCD; 0.4' tail in p.a. 263 deg);
    26.06, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.96, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    20.95, 16.0, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    19.95, 15.9, 2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1' tail in p.a. 288 deg);
    18.03, 16.4, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.2' tail in p.a. 287 deg);
    17.86, 15.9, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    15.87, 16.4, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.1' tail in p.a. 291 deg);
    14.95, 17.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 01.61, 15.7, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 277 deg);
mar 31.67, 15.6, 0.9' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.66, 15.7, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.64, 15.6, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.66, 15.8, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.65, 16.0, 0.41' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    24.25, 15.3, 0.3' (M. Olason, Arizona, 0.091-m Refractor + CCD);
    23.66, 16.0, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.64, 15.7, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.69, 16.0, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.70, 15.7, 0.6' (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
mar 22.85, 18.5, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);


C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 06.52, 16.4, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    03.81, 16.5, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
mar 31.55, 16.3, 0.4' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.57, 16.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    28.85, 16.8, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.79, 16.6, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    26.50, 16.2, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.84, 16.7, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    25.57, 16.3, 0.4' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.57, 16.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.57, 15.9, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.80, 16.2, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    19.52, 16.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    18.89, 16.4, 0.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.80, 16.4, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    16.83, 16.3, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    14.91, 16.5, 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
apr 06.09, 17.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
mar 30.10, 16.4, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    29.21, 17.0, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    20.14, 16.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 06.07, 17.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.99, 16.6, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.99, 17.8, 0.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    02.93, 17.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
mar 31.16, 17.1, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 300 deg);
    30.05, 17.2, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 296 deg);
    29.10, 18.0, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    28.10, 17.2, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 300 deg);
    26.11, 17.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.08, 17.3, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 300 deg);
    21.14, 17.4, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 302 deg);
    20.09, 17.4, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 295 deg);
    20.07, 17.4, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 292 deg);
    19.15, 17.2, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 287 deg);
    18.13, 17.2, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 307 deg);
    18.12, 17.2, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    16.01, 17.7, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);


C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 05.12, 15.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    02.64, 15.5, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    01.58, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
mar 31.59, 15.1, 0.8' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 98 deg);
    30.65, 15.2, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    29.13, 15.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    27.49, 15.0, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    26.61, 15.1, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    25.67, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.66, 15.0, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.99, 15.1, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.67, 15.1, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.01, 15.6, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.62, 15.3, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.06, 15.3, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    20.70, 15.1, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.68, 15.3, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);


C/2024 M1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 29.01, 17.7, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.87, 17.5, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    20.84, 18.7, 0.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    18.86, 18.3, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    17.91, 18.3, 0.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    15.81, 19.6, 0.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);


C/2024 N3 (Sarneczky)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 16.10, 18.5, 0.17' (S. Shurpakov, 0.41-m Newtonian + CCD);


C/2024 N4 (Sarneczky)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 29.04, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    20.97, 18.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 27.89, 21.4, -- (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);


C/2025 D1 (Groeller)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 23.90, 20.6, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


C/2025 F2 (SWAN)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 13.12, 8.9, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    13.11, 9.4, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5° tail in p.a. 306 deg);
    13.10, 9.2, 1.4' (T. Csorgei, 0.105-m Refractor; 4.2' tail in p.a. 313 deg);
    13.09, 8.3, 2' (C. Harder, Jeersdorf f, 0.252-m Newtonian);
    13.09, 8.5, 2' (P. Guzik, 25x100 Binoculars);
    13.09, 8.5, 1.5' (M. Kwinta, 15x70 Binoculars);
    12.13, 9.6, 4.4' (P. Dekelver, 0.3-m Newtonian + CCD; 0.5° tail in p.a. 306 deg);
    11.97, 8.0, 3.2' (A. Novichonok, Chalna fields, Karelia, Russia, 0.029-m Camera lens + CCD; 0.8° tail in p.a. 305 deg);
    11.15, 9.5, 2.5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    11.14, 9.7, 2.9' (P. Dekelver, 0.3-m Newtonian + CCD; 29.6' tail in p.a. 307 deg);
    11.14, 9.6, 2.26' (N. James, 0.051-m Refractor + CCD);
    10.10, 8.5, 1.5' (J. Warell, Lindby (K60), 40x100 Binoculars);
    09.17, 9.5, -- (W. Souza, Bern,Switzerland, 0.15-m Newtonian + CCD);
    09.15, 9.0, 2' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    09.15, 8.8, 7.3' (P. Dekelver, 0.3-m Newtonian + CCD; 28.2' tail in p.a. 306 deg);
    09.15, 8.3, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    09.14, 8.6, 3.01' (N. James, 0.051-m Refractor + CCD);
    08.99, 8.2, 2' (A. Novichonok, Chalna fields, Karelia, Russia, 0.08-m Refractor);
    08.79, 7.8, 3.7' (O. Miyazaki, 18x50 Binoculars);
    08.18, 7.8, 4.5' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1.25° tail in p.a. 300 deg);
    08.16, 8.5, 4' (C. Labordena, La Serratella, 11x80 Binoculars);
    08.16, 7.8, 2.9' (D. Swan, Newcastle upon Tyne, UK, 0.05-m Refractor + CCD);
    08.16, 8.7, 4' (C. Labordena, La Serratella, 0.2-m Schmidt-Cassegrain);
    08.15, 8.2, 3.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    08.14, 7.5, 4' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    08.14, 7.5, 5' (A. Scholten, Eerbeek, 15x80 Binoculars);
    07.99, 7.7, 2' (A. Novichonok, Chalna fields, 0.08-m Refractor);
    07.91, 9.5, 3.3' (C. Guo, Daocheng Glacier Observatory, Daocheng county, Garze Tibetan autonomous prefecture, Sichuan Province, China, 0.279-m Cassegrain reflector + CCD; 1.2° tail in p.a. 296 deg);
    07.80, 8.5, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    07.80, 8.8, -- (K. Imamura, Nakagawa, 0.05-m Refractor + CCD);
    07.79, 8.4, 3' (K. Harikae, 0.15-m Newtonian + CCD; 15' tail in p.a. 295 deg);
    07.18, 8.3, 4' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1° tail in p.a. 301 deg);
    07.18, 7.9, 4' (J. Gonzalez Suarez, 15x70 Binoculars);
    07.17, 8.3, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 1.5° tail in p.a. 300 deg);
    07.17, 8.2, 3.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.3° tail in p.a. 290 deg);
    07.15, 8.1, 3.76' (N. James, 0.051-m Refractor + CCD);
    07.15, 7.7, 3' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    07.14, 8.3, 3.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    07.13, 8.1, 6.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    07.11, 7.9, 3.5' (C. Harder, Jeersdorf f, 0.252-m Newtonian; 6' tail in p.a. 300 deg);
    07.00, 7.5, 5' (G. van Buitenen, Dordrecht, NL, 0.304-m Newtonian);
    06.17, 9.6, 4' (C. Labordena, La Serratella, 0.2-m Schmidt-Cassegrain);
    06.15, 8.0, 3.76' (N. James, 0.051-m Refractor + CCD);
    06.13, 8.1, 5.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    06.10, 7.9, 3.5' (C. Harder, Görding/ DK, 0.197-m Newtonian);
    06.02, 8.1, 2.5' (A. Novichonok, Chalna fields, 0.08-m Refractor);
    05.18, 9.0, 2.9' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 14' tail in p.a. 302 deg);
    05.16, 9.6, 2.26' (N. James, 0.051-m Refractor + CCD);
    05.15, 8.9, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    05.13, 9.0, 2.5' (M. Meyer, 0.152-m Refractor);
    05.11, 9.0, 2.7' (C. Harder, Görding/ DK, 0.197-m Newtonian);
    04.81, 10.7, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    04.13, 9.2, 2' (M. Meyer, 0.254-m Newtonian);
    04.12, 9.1, 2.7' (U. Pilz, 0.32-m Newtonian);
    04.11, 9.6, 2.6' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    04.09, 9.4, 2' (P. Guzik, 25x100 Binoculars);
    03.13, 9.5, 2.2' (C. Harder, Jeersdorf h, 0.252-m Newtonian);


P/2010 H2 (Vales)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 02.05, 15.5, 0.6' (W. Kutschera, 0.508-m Newtonian);


P/2019 Y3 (Catalina)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 22.44, 17.3, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    21.80, 18.5, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 80 deg);
    21.78, 17.8, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 82 deg);
    19.85, 15.5, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 100 deg);
    17.92, 17.0, 0.3' (G. Pappa, Piemonte,Italy (remote control), 0.14-m Refractor + CCD);
    17.82, 15.9, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 103 deg);
    14.87, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


P/2023 S1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 12.82, 17.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.48, 15.9, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    04.92, 16.8, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.89, 16.0, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    04.82, 16.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.84, 15.7, 1.1' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.84, 16.4, 0.9' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.84, 16.6, 1.1' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.82, 16.5, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.89, 16.8, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    01.87, 16.2, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    01.02, 16.4, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
mar 31.62, 15.9, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    30.48, 15.8, 0.5' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    29.80, 15.6, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD);
    28.93, 17.0, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    28.90, 16.3, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    27.89, 14.9, 2.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 303 deg);
    27.88, 17.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    26.92, 16.4, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    26.56, 15.7, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    26.49, 15.7, 0.8' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    25.59, 15.7, 0.5' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    24.93, 15.8, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    24.49, 16.0, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    23.97, 16.4, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.62, 15.7, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    22.92, 16.6, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.49, 15.9, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    20.99, 16.2, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    20.91, 16.4, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    20.91, 14.4, 3.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 302 deg);
    20.49, 15.4, 0.6' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.62, 15.0, 0.7' (A. Pearce, Perth Observatory, 0.35-m Schmidt-Cassegrain + CCD);
    19.04, 17.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    18.90, 14.5, 4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 304 deg);
    18.84, 16.3, 1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.56, 15.9, 0.43' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    17.98, 15.3, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    17.88, 16.2, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    16.91, 14.6, 3.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 309 deg);
    16.83, 15.3, 0.8' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);


P/2025 A2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 02.05, 20.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


P/2025 C1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
apr 05.15, 18.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
mar 29.15, 18.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    26.09, 18.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


P/2025 D3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
mar 27.16, 20.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);