3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 18.08, 17.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    16.08, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + 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);
    14.69, 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);
    05.16, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    04.15, 17.8, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    04.15, 17.2, 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);
    03.91, 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, 18.1, 0.2' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    03.13, 17.5, 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, 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);


29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 27.44, 13.6, 2.4' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    26.90, 10.5, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.43, 13.1, 2.1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    25.44, 13.3, 2.1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    24.43, 13.1, 1.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.88, 13.8, 1.5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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);
jun 28.20, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    26.12, 17.4, 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 06.41, 15.9, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    06.41, 15.4, 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 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 03.13, 18.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
jun 25.20, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 20.89, 18.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 16.29, 19.6, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jun 28.11, 20.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


105P/Singer Brewster
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 24.18, 19.3, -- (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
jun 28.18, 20.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 18.20, 14.1, 0.4' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 252 deg);
    17.20, 14.3, 0.25' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 261 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);
jun 26.42, 12.9, 1.2' (M. Mašek, Malargue, 0.107-m Camera lens + CCD; 1.1' tail in p.a. 254 deg);
    22.43, 13.1, 1' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 4.1' tail in p.a. 251 deg);
    22.43, 12.8, 1' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 3.7' tail in p.a. 256 deg);
    19.85, 12.8, 1' (M. Mattiazzo, Strathalbyn, South Australia, 0.07-m Camera lens + CCD);


240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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 18.18, 18.4, -- (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 05.02, 18.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
jun 29.04, 18.6, 0.31' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + 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 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
jun 29.17, 14.2, 2.7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    25.41, 14.8, 0.9' (K. Yoshimoto, 0.25-m Newtonian + CCD);


C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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 18.61, 13.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + 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);
    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, 13.5, 2.2' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.89, 14.8, 1.8' (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);
    28.83, 14.1, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.21° tail in p.a. 234 deg);
    27.92, 14.1, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.2° tail in p.a. 234 deg);
    27.51, 14.2, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    26.92, 14.1, 1.5' (K. Hills, 0.5-m Newtonian + CCD);
    26.92, 11.8, 2.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.50, 14.4, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    25.95, 14.0, 0.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.92, 13.9, 1.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 233 deg);
    25.89, 14.0, 1.4' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 3.4' tail in p.a. 229 deg);
    25.51, 14.4, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    23.93, 14.0, -- (F. Fremont, Niort, France, 0.073-m Refractor + CCD);
    23.17, 13.9, 2' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.3° tail in p.a. 234 deg);
    21.94, 14.0, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 234 deg);
    21.92, 13.9, 1.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.24° tail in p.a. 235 deg);
    21.88, 14.4, 1.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 3.2' tail in p.a. 234 deg);
    21.52, 13.6, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    20.88, 13.6, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.4' tail in p.a. 229 deg);
    20.88, [16.6, 13.5' (L. Sannino, Osservatorio Monte Viseggi 126, 0.4-m Cassegrain reflector + CCD; 8" tail in p.a. 330 deg);
    20.87, 14.5, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.8' tail in p.a. 232 deg);
    20.87, 14.1, 1.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.2' tail in p.a. 232 deg);
    20.86, 14.7, 0.9' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.92, 13.9, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.25° tail in p.a. 234 deg);


C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 05.02, 19.3, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
jun 21.99, 18.1, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    20.94, 18.7, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 05.00, 15.7, 1.5' (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);
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);
    29.10, 14.0, 1.1' (W. Kutschera, 0.76-m Newtonian);
    26.10, 14.9, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.03, 14.7, 1.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 68 deg);
    22.02, 15.6, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    20.99, 14.4, 1.1' (M. Kalina, 0.08-m Refractor + CCD);
    20.97, 15.4, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 320 deg);
    20.93, 15.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 325 deg);
    20.93, 14.6, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 313 deg);
    20.01, 14.7, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 66 deg);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 03.04, 15.0, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
jun 28.17, 15.0, 1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.07° tail in p.a. 252 deg);


C/2022 U1 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 24.09, 17.7, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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);
    27.57, 15.6, 0.6' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    25.97, 16.7, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    24.91, 16.3, 0.75' (K. Hills, 0.5-m Newtonian + CCD);
    23.37, 13.7, 3.4' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD);
    21.94, 17.1, 0.3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    20.91, 15.7, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.90, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.87, 16.7, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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);
    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);
    28.78, 15.7, 0.5' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1' tail in p.a. 240 deg);
    26.07, 15.4, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.04, 15.3, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    24.09, 14.9, 0.7' (W. Kutschera, 0.508-m Newtonian + CCD);
    22.10, 14.5, 0.8' (W. Kutschera, 0.76-m Newtonian);
    22.02, 14.7, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 230 deg);
    22.01, 15.6, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    22.00, 15.6, 1.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.09, 14.7, 0.8' (W. Kutschera, 0.508-m Newtonian + CCD);
    20.96, 14.9, 0.8' (M. Kalina, 0.08-m Refractor + CCD);
    20.94, 15.8, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.94, 14.9, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    20.93, 16.0, 0.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 214 deg);
    19.97, 14.1, 0.3' (W. Hasubick, 0.44-m Newtonian);
    19.01, 15.7, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 231 deg);


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 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);
    28.88, 16.9, 0.39' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 1.3' tail in p.a. 177 deg);
    25.94, 17.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    23.19, 16.6, 0.6' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 1.7' tail in p.a. 173 deg);
    21.91, 16.2, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    21.91, 16.3, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.91, 17.5, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.90, 16.7, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.9' tail in p.a. 175 deg);
    20.92, 16.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 170 deg);
    20.92, 17.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 166 deg);
    20.91, 17.3, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 172 deg);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 14.05, 15.6, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + 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);
    26.03, 16.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.03, 16.2, 0.6' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    26.02, 16.0, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 99 deg);
    22.01, 15.8, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD);
    22.00, 16.1, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 80 deg);
    22.00, 15.3, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.96, 16.6, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    21.96, 15.8, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    21.96, 16.7, 0.7' (M. Lošťák, 0.2-m Newtonian + CCD);
    20.95, 16.5, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.3' tail in p.a. 102 deg);
    20.91, 16.7, 0.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.98, 15.9, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 86 deg);
    19.40, 16.1, 0.7' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.8' tail in p.a. 94 deg);


C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 18.59, 15.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + 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/2024 B1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 24.93, 18.3, 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 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);
    14.90, 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);
    12.95, 15.1, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    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, 15.6, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 168 deg);
    01.98, 13.9, 0.2' (W. Hasubick, 0.44-m Newtonian);
    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, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 177 deg);
    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, 0.8' (U. Pilz, Leipzig, 0.03-m Refractor + CCD);
    29.93, 16.5, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    29.93, 15.6, 0.5' (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);
    28.94, 15.8, 0.35' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 167 deg);
    28.92, 16.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    28.91, 15.9, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    27.92, 15.8, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 174 deg);
    26.96, 14.7, 0.4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    26.92, 15.9, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4' tail in p.a. 180 deg);
    26.90, 15.6, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 177 deg);
    25.99, 16.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.96, 15.7, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 181 deg);
    25.02, 16.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    22.04, 15.7, 0.8' (S. Fritsche, Koeditz, 0.05-m Refractor + CCD; 0.5' tail in p.a. 221 deg);
    21.96, 15.7, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 197 deg);
    21.92, 16.6, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 190 deg);
    21.02, 16.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    21.00, 15.6, 1.1' (M. Kalina, 0.08-m Refractor + CCD);
    20.89, 16.2, 0.7' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 181 deg);
    19.96, 15.8, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 196 deg);
    18.98, 15.8, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 184 deg);


C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 01.90, 17.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
jun 19.93, 18.2, 0.6' (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 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);
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);
    29.04, 15.4, 0.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.2' tail in p.a. 188 deg);
    26.01, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    23.41, 15.5, 0.9' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 1.3' tail in p.a. 198 deg);


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


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 28.09, 18.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jun 29.93, 19.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    25.93, 19.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 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);
    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);
    07.40, 15.0, 0.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 0.7' tail in p.a. 226 deg);
    07.40, 15.4, 0.5' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 0.8' tail in p.a. 224 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);
    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);
    29.01, 14.9, 0.4' (R. Haver, Frasso Sabino, Rieti, Italy, 0.368-m Cassegrain reflector + CCD; 2.5' tail in p.a. 231 deg);
    28.76, 15.7, 0.5' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1' tail in p.a. 235 deg);
    28.02, 16.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    26.05, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.99, 15.4, 0.33' (R. Haver, Frasso Sabino, 0.368-m Cassegrain reflector + CCD; 2' tail in p.a. 232 deg);
    25.99, 16.1, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 244 deg);
    21.99, 16.3, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 239 deg);
    20.96, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 240 deg);
    20.96, 16.9, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 237 deg);
    20.02, 16.4, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 237 deg);
    19.43, 16.6, 0.5' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.9' tail in p.a. 243 deg);


C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 16.90, 18.2, 0.15' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    15.97, 17.5, 0.17' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);