3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.59, 17.1, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.59, 17.5, 0.2' (J. Xiong, Daocheng, China(remote,O40), 0.252-m Newtonian + CCD);
    26.93, 17.0, 0.1' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    26.54, 17.0, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    26.48, 16.9, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.20, 17.0, 0.2' (M. Olason, Arizona, 0.091-m Refractor + CCD);
    25.94, 17.7, -- (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);
    25.91, 17.0, -- (N. Quinn, Steyning, West Sussex, UK, 0.28-m Schmidt-Cassegrain + CCD);
    25.91, 16.7, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    25.51, 17.2, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    25.50, 17.2, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.94, 17.9, 0.13' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    23.96, 17.1, 0.18' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    22.51, 17.1, -- (K. Yoshimoto, 0.3-m Newtonian + CCD);
    22.09, 17.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    21.96, 17.3, 0.17' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    18.97, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    18.92, 17.1, 0.27' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    18.08, 17.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    16.90, 18.2, 0.15' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    16.08, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    15.97, 17.5, 0.17' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    15.49, 16.9, -- (K. Yoshimoto, 0.3-m Newtonian + CCD);
    14.97, 16.7, -- (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    14.90, 16.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.69, 17.8, 0.15' (J. Xiong, Daocheng, China(remote,O40), 0.252-m Newtonian + CCD);
    13.94, 18.2, 0.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    10.67, 17.3, 0.2' (J. Xiong, Daocheng, China(remote,O40), 0.252-m Newtonian + CCD);
    09.64, 17.8, 0.2' (J. Xiong, Daocheng, China(remote,O40), 0.252-m Newtonian + CCD);
    06.18, 17.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    06.01, 18.6, -- (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);
    05.16, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    04.15, 17.2, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    04.15, 17.8, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    04.02, 18.2, 0.2' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD);
    03.97, 18.6, -- (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);
    03.91, 17.5, 0.2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    03.58, 17.2, -- (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    03.13, 17.5, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    03.13, 18.1, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    03.11, 17.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    03.06, 17.6, -- (K. Yoshimoto, 0.25-m Newtonian + CCD);
    03.01, 18.2, -- (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);
    03.01, 18.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.01, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.98, 18.3, 0.2' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD);
    02.98, 17.4, 0.2' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD);
    02.28, 17.7, 0.4' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);


13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 18.55, 16.6, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.64, 16.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 250 deg);
    26.66, 16.5, 0.49' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 249 deg);
    25.63, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 249 deg);
    24.64, 16.9, 0.46' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 253 deg);
    22.10, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    18.97, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    18.65, 16.3, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 257 deg);
    05.03, 17.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 250 deg);
    03.11, 17.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


48P/Johnson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.83, 16.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.83, 16.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 245 deg);
    25.83, 16.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.84, 16.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 68 deg);
    06.41, 15.4, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    06.41, 15.9, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);


65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.49, 15.3, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.51, 15.8, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.51, 15.3, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.49, 16.8, 0.25' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    21.97, 15.3, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    19.50, 16.4, 0.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.53, 15.6, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.78, 16.5, 0.1' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    06.15, 14.5, 1.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);


78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.92, 18.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.10, 17.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.13, 18.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 19.12, 20.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    16.29, 19.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


145P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.32, 18.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    21.34, 19.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    19.19, 20.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


188P/LINEAR-Mueller
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.26, 19.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.20, 14.0, 0.6' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 263 deg);
    22.20, 13.5, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 247 deg);
    21.20, 13.7, 0.6' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 255 deg);
    18.20, 13.3, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 263 deg);
    17.20, 12.8, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 263 deg);
    06.44, 13.3, 0.9' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    06.44, 13.3, 0.9' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);


240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.80, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 242 deg);
    26.80, 14.4, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.8' tail in p.a. 244 deg);
    25.80, 14.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 243 deg);
    24.80, 14.4, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.4' tail in p.a. 242 deg);
    22.14, 14.5, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    12.40, 14.7, 0.4' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 0.6' tail in p.a. 245 deg);
    12.40, 15.2, 0.4' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 1.1' tail in p.a. 249 deg);


261P/Larson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 19.07, 18.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    18.18, 18.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


313P/Gibbs
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 21.28, 21.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


362P
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 26.63, 18.3, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 250 deg);
    22.94, 19.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    19.14, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    05.02, 18.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


441P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 16.20, 18.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


486P/Leonard
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 03.30, 18.7, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jun 30.13, 18.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


491P/Spacewatch-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 03.22, 18.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


502P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.93, 19.6, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.62, 19.2, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    19.09, 19.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.20, 18.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jun 29.99, 19.4, 0.27' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.78, 15.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.78, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.78, 15.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.79, 14.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.99, 19.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.61, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.62, 16.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.61, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.58, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.52, 16.4, 0.4' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    18.63, 15.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.56, 14.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.57, 14.5, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.47, 14.7, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    25.91, 14.8, -- (F. Fremont, Niort, France, 0.073-m Refractor + CCD);
    25.60, 14.2, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.46, 14.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.46, 14.6, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    24.46, 14.3, 0.9' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    22.85, 14.7, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.6' tail in p.a. 232 deg);
    21.93, 14.3, 0.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.90, 12.0, 2' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    20.84, 14.7, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.51, 13.1, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    19.98, 14.6, 0.94' (K. Hills, 0.5-m Newtonian + CCD);
    19.46, 14.4, 0.7' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    19.46, 13.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.46, 14.4, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.61, 13.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.91, 14.2, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    16.90, 11.8, 2' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    16.51, 14.4, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    10.53, 14.6, 0.7' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    03.90, 13.6, 1.3' (E. Bryssinck, 0.4-m Newtonian + CCD);
    02.98, 14.5, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.95, 14.1, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.14° tail in p.a. 233 deg);
    01.92, 14.1, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.2° tail in p.a. 234 deg);
jun 30.94, 14.0, 0.3' (F. Fremont, Niort, 0.073-m Refractor + CCD; 2.2' tail in p.a. 225 deg);
    30.92, 14.1, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.22° tail in p.a. 233 deg);
    30.90, 14.0, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.2° tail in p.a. 234 deg);
    30.90, 14.3, 0.5' (M. Kalina, Prague - Řepy (MPC XXX), 0.2-m Ritchey-Chretien + CCD);
    29.92, 14.1, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.19° tail in p.a. 231 deg);
    29.90, 14.1, 1.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.18° tail in p.a. 235 deg);
    29.89, 14.8, 1.8' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.89, 13.5, 2.2' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.87, 14.1, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.23° tail in p.a. 233 deg);
    29.50, 14.0, 1.8' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);


C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 24.11, 18.6, 2' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    22.95, 18.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.02, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.95, 15.8, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.07, 14.3, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.88, 15.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.00, 15.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.13-m Refractor + CCD);
    05.00, 15.7, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.09, 15.1, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 30.02, 14.7, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.09° tail in p.a. 65 deg);
    29.99, 14.6, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 67 deg);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.86, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.87, 14.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.87, 15.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 251 deg);
    25.31, 15.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    22.11, 15.0, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    21.13, 12.3, 2.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    03.76, 13.9, 0.9' (K. Harikae, 0.15-m Newtonian + CCD);
    03.13, 15.6, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.04, 15.0, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
jun 30.76, 14.0, 0.9' (K. Harikae, 0.15-m Newtonian + CCD);


C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.97, 16.3, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    23.13, 17.0, 1' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD; 1.5" tail in p.a. 140 deg);
    23.00, 16.9, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    22.89, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    21.99, 16.0, 0.6' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD);
    21.99, 16.1, 0.6' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD);
    21.98, 17.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.86, 17.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.90, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    14.94, 16.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    13.98, 15.6, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 121 deg);
    12.50, 16.1, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.8' tail in p.a. 135 deg);
    11.97, 16.2, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    06.18, 16.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    04.97, 16.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.88, 16.9, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    03.00, 15.5, 1.13' (K. Hills, 0.5-m Newtonian + CCD);
    02.92, 14.5, 1' (M. Paradowski, 0.15-m Newtonian + CCD);
    02.91, 14.6, 1' (M. Paradowski, 0.15-m Newtonian + CCD);
    02.87, 17.0, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
jun 30.97, 14.0, 3.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 127 deg);
    30.91, 15.1, 2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 143 deg);
    29.56, 16.0, 0.4' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.97, 16.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    22.05, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.87, 16.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    16.10, 15.1, 1.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.30, 15.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.13-m Refractor + CCD; 1.7' tail in p.a. 225 deg);
    04.98, 15.6, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 241 deg);
    03.05, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.03, 15.2, 1.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 231 deg);
    01.00, 15.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 230 deg);
jun 30.10, 15.0, 0.6' (W. Kutschera, 0.508-m Newtonian);
    29.98, 15.5, 0.15' (C. Harder, Jeersdorf f, 0.531-m Newtonian);


C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 09.44, 17.8, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);


C/2023 H1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 06.22, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    03.99, 16.5, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.96, 17.4, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 183 deg);
    21.91, 17.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.89, 17.4, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 182 deg);
    07.92, 17.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    05.00, 17.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 174 deg);
    01.95, 16.6, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 179 deg);
jun 29.93, 16.5, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 177 deg);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.64, 16.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.65, 16.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.00, 15.6, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    25.65, 15.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.03, 15.4, 0.44' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    24.03, 15.4, 0.44' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    22.91, 16.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 106 deg);
    22.06, 15.6, 0.6' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 94 deg);
    22.06, 15.3, 0.6' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 92 deg);
    22.02, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    20.86, 16.6, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.98, 16.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.05, 15.6, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    08.07, 16.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    04.98, 16.3, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.98, 16.6, 0.19' (S. Shurpakov, 0.41-m Newtonian + CCD);
    02.02, 15.9, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 88 deg);
    01.97, 15.8, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 91 deg);
jun 30.95, 15.7, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 91 deg);
    29.97, 15.7, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.97, 16.6, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.60, 15.7, 0.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);


C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 26.55, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.59, 16.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.55, 16.8, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.45, 16.7, 0.3' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    19.53, 16.4, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.45, 16.7, 0.35' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    18.59, 15.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.45, 16.9, 0.25' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    09.44, 16.9, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
jun 29.92, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    29.83, 16.3, 0.8' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.06° tail in p.a. 265 deg);


C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.97, 19.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2024 B1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 23.17, 18.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    19.99, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 27.80, 14.0, 0.4' (D. Sidorko, Korenovsk, Russia, 0.406-m Newtonian);
    25.95, 14.9, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    25.93, 14.9, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.91, 15.7, 0.32' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 34" tail in p.a. 85 deg);
    24.93, 15.7, 0.28' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 23" tail in p.a. 87 deg);
    24.60, 13.8, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    23.92, 14.9, 0.9' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    23.92, 14.3, 0.9' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    23.77, 15.3, 0.5' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD);
    23.61, 13.6, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    22.87, 16.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 118 deg);
    22.61, 13.1, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    21.94, 16.1, 0.28' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 21" tail in p.a. 122 deg);
    21.75, 15.3, 0.5' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD);
    21.00, 14.3, 0.4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    20.87, 16.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 131 deg);
    20.52, 13.0, 1' (O. Miyazaki, 0.32-m Newtonian);
    19.06, 16.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    16.97, 16.0, 0.23' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 22" tail in p.a. 130 deg);
    16.94, 14.2, 0.4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    16.88, 14.6, 0.8' (E. Bryssinck, 0.4-m Newtonian + CCD);
    15.95, 15.9, 0.27' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 24" tail in p.a. 125 deg);
    14.94, 15.7, 0.28' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 20" tail in p.a. 141 deg);
    14.93, 15.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.90, 15.1, 0.3' (G. Pappa, Spain (remote control), 0.13-m Refractor + CCD);
    14.50, 15.2, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 135 deg);
    13.89, 15.4, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 144 deg);
    13.29, 15.1, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.95, 15.1, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    09.95, 15.8, 0.22' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 15" tail in p.a. 134 deg);
    07.90, 16.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    05.93, 14.7, 1' (M. Mašek, Hodkovice n M., 0.08-m Refractor + CCD);
    05.91, 16.4, 0.15' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.3' tail in p.a. 141 deg);
    04.99, 16.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 162 deg);
    03.95, 15.5, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 160 deg);
    03.11, 16.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    01.98, 13.9, 0.2' (W. Hasubick, 0.44-m Newtonian);
    01.98, 15.6, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 168 deg);
    01.94, 15.4, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 163 deg);
    01.91, 16.0, 0.2' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 166 deg);
jun 29.97, 15.1, 0.3' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    29.96, 15.6, 0.8' (U. Pilz, Leipzig, 0.03-m Refractor + CCD);
    29.96, 15.6, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 173 deg);
    29.96, 15.6, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 177 deg);
    29.93, 15.6, 0.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.93, 16.5, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.91, 15.8, 0.35' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 166 deg);
    29.54, 15.5, 0.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);


C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.58, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.47, 17.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.48, 17.3, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.46, 17.7, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.09, 17.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    19.47, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.90, 17.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);


C/2024 J2 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 01.17, 15.6, 1.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);


C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.55, 15.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.52, 15.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.57, 15.6, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.53, 15.6, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    24.53, 15.2, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.51, 15.5, 0.45' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    21.95, 15.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    18.56, 15.1, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    18.45, 15.6, 0.3' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    14.97, 14.9, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    14.47, 15.5, 0.3' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    04.99, 15.7, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    03.15, 16.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    03.03, 15.8, 11' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 30.02, 15.3, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 228 deg);
    29.99, 15.7, 0.6' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);


C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 24.44, 16.4, 0.4' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    19.44, 17.2, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    14.44, 16.2, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);


C/2024 N1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.13, 19.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2024 N3 (Sarneczky)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.08, 18.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.16, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    19.20, 17.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 22.98, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
jun 29.93, 19.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 28.63, 13.0, 1' (O. Miyazaki, 0.32-m Newtonian);
    27.79, 13.3, 0.6' (D. Sidorko, Korenovsk, Russia, 0.406-m Newtonian);
    27.01, 13.8, 0.48' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.3' tail in p.a. 156 deg);
    26.58, 13.5, 0.7' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.8' tail in p.a. 175 deg);
    26.55, 12.7, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    25.98, 12.2, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.98, 13.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    24.96, 14.3, 0.32' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.6' tail in p.a. 184 deg);
    24.57, 12.7, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    23.99, 12.8, 0.53' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD; 1.5' tail in p.a. 192 deg);
    23.99, 13.3, 0.53' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD; 1.8' tail in p.a. 192 deg);
    23.63, 12.8, 1' (O. Miyazaki, 0.32-m Newtonian);
    23.19, 14.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD; 6' tail in p.a. 195 deg);
    22.98, 13.8, 0.38' (S. Shurpakov, 0.41-m Newtonian + CCD; 4' tail in p.a. 189 deg);
    22.91, 14.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.3' tail in p.a. 192 deg);
    22.63, 12.7, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    22.56, 13.9, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 3.2' tail in p.a. 193 deg);
    22.56, 14.6, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    22.56, 13.2, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    22.00, 13.6, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    21.98, 14.6, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 3.6' tail in p.a. 195 deg);
    21.02, 13.9, 1' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 3.5' tail in p.a. 199 deg);
    20.92, 13.3, 1.1' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    20.85, 14.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 201 deg);
    20.59, 13.7, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    20.59, 14.9, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    20.59, 14.2, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 4.5' tail in p.a. 200 deg);
    20.01, 13.9, 0.8' (M. Mašek, Hodkovice n M., 0.2-m Newtonian + CCD; 0.7' tail in p.a. 206 deg);
    20.00, 13.9, 0.8' (M. Mašek, Hodkovice n M., 0.2-m Newtonian + CCD; 2.3' tail in p.a. 199 deg);
    19.17, 14.2, 0.94' (K. Hills, 0.5-m Newtonian + CCD);
    17.94, 14.2, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    16.99, 14.8, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.5' tail in p.a. 211 deg);
    16.95, 13.9, 0.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    15.12, 15.8, 0.18' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.5' tail in p.a. 215 deg);
    14.03, 14.5, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.2' tail in p.a. 212 deg);
    11.66, 14.3, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 1.8' tail in p.a. 220 deg);
    10.12, 15.5, 0.15' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.1' tail in p.a. 221 deg);
    07.40, 15.4, 0.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 0.8' tail in p.a. 224 deg);
    07.40, 15.0, 0.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 0.7' tail in p.a. 226 deg);
    06.09, 15.0, 1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 2' tail in p.a. 224 deg);
    05.22, 15.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD; 0.7' tail in p.a. 235 deg);
    05.09, 15.3, 0.5' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1' tail in p.a. 227 deg);
    04.97, 15.7, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 228 deg);
    04.03, 15.3, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 226 deg);
    03.63, 15.4, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 0.7' tail in p.a. 230 deg);
    03.10, 15.7, 2.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.1' tail in p.a. 230 deg);
    03.07, 15.7, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.02, 15.4, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 232 deg);
    01.09, 15.8, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD);
    01.03, 15.5, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 233 deg);
jun 30.99, 15.4, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.5' tail in p.a. 230 deg);
    30.05, 15.5, 1.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 234 deg);
    30.02, 15.4, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    30.02, 16.4, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.99, 15.6, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.7' tail in p.a. 232 deg);


C/2025 K3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.10, 20.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2025 M2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 23.23, 20.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);