3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.56, 16.3, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.88, 16.4, 0.25' (J. Ryske, Y71 Makroskooppi, Fregenal de la Sierra, Spain, 0.3-m Ritchey-Chretien + CCD);
    15.86, 16.5, 0.46' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD);
    15.52, 16.4, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.86, 16.5, 0.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    14.81, 15.2, 0.17' (S. Shurpakov, 0.41-m Newtonian + CCD);
    14.39, 16.3, 0.47' (T. Lekatsas, Heaven's Mirror Observatory, Yass (MPC Q56), 0.106-m Refractor + CCD);
    13.84, 16.8, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    13.47, 15.9, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    12.85, 16.4, 0.31' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    12.85, 15.6, 0.31' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    12.54, 16.3, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.40, 16.4, -- (T. Lekatsas, iTelescope Siding Spring, Australia, 0.43-m Cassegrain reflector + CCD);
    11.86, 16.4, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    11.83, 16.5, 0.27' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    11.57, 16.4, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.87, 15.6, 0.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    09.86, 16.3, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    09.18, 16.7, 0.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    08.85, 16.9, 0.1' (G. Pappa, Spain (remote control), 0.5-m Prime focus of a reflector + CCD);
    07.91, 16.5, 0.2' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    06.90, 16.8, 0.1' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    06.48, 16.6, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    05.62, 17.0, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    04.89, 16.7, 0.2' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    04.88, <17.1, 0.25' (A. Tuznik, Ożarów, Polska, 0.061-m Refractor + CCD);
    03.23, 16.5, 0.24' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    03.23, 16.7, 0.24' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    02.90, 16.7, -- (N. Quinn, Steyning, West Sussex, UK, 0.28-m Schmidt-Cassegrain + CCD);
    02.52, 16.5, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);
jul 31.48, 16.9, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.53, 16.8, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.07, 16.7, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    29.75, 17.2, 0.3' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD);
    29.64, 16.9, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.07, 17.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    28.59, 17.1, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.46, 17.1, 0.22' (T. Lekatsas, iTelescope Observatory, Siding Spring (MPC Q62), 0.43-m Cassegrain reflector + CCD);
    27.92, 16.7, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + 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);
    24.81, 17.6, 0.3' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD);
    23.96, 17.1, 0.18' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    23.92, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + 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);
    20.91, 17.0, 0.36' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD);


13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 31.47, 17.3, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    26.27, 17.7, 0.2' (M. Olason, Arizona, 0.091-m Refractor + CCD);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.63, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.72, 15.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 251 deg);
    14.62, 16.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.2' tail in p.a. 251 deg);
    13.99, 16.1, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 272 deg);
    06.62, 16.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.08, 16.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.61, 15.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 249 deg);
jul 31.70, 16.5, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.4' tail in p.a. 245 deg);
    31.61, 16.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.17, 17.0, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    30.62, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 247 deg);
    29.98, 16.8, 0.3' (G. Pappa, Spain (remote control), 0.5-m Prime focus of a reflector + CCD);
    29.70, 16.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 249 deg);
    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);


48P/Johnson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 12.80, 15.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.79, 15.8, 0.6' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    06.81, 16.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.82, 15.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 63 deg);
jul 31.82, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 61 deg);
    30.82, 15.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.83, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);
    26.42, 15.8, 0.5' (M. Olason, Arizona, 0.091-m Refractor + CCD; 2' tail in p.a. 248 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);


65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 01.49, 16.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.49, 16.5, 0.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    30.55, 16.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.67, 16.9, 0.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);


78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.49, 16.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.63, 16.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.88, 16.9, 0.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    12.49, 17.2, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    04.07, 17.1, 0.6' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD; 0.4' tail in p.a. 252 deg);
jul 31.12, 17.1, 0.4' (R. Hill, 0.5-m Newtonian + CCD);
    27.05, 17.1, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.37, 17.3, 0.6' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.7' tail in p.a. 240 deg);
    22.92, 18.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 24.74, 17.7, 0.6' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD);


93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 31.11, 19.9, 0.23' (R. Hill, 0.5-m Newtonian + CCD);


105P/Singer Brewster
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 12.06, 18.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jul 27.03, 19.0, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);


131P/Mueller
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 02.29, 19.9, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


138P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 03.24, 20.3, -- (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
jul 31.16, 19.2, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    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);


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);


210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.61, 18.6, 0.25' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.04, 19.9, 0.2' (R. Hill, 0.5-m Newtonian + CCD);
    02.21, 19.3, -- (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
aug 18.17, 14.5, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 273 deg);
    17.18, 14.7, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 264 deg);
    16.18, 14.6, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 273 deg);
    11.18, 14.4, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 274 deg);
    08.18, 14.4, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 274 deg);
    05.19, 14.1, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 263 deg);
    04.19, 14.2, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 265 deg);
    03.19, 14.0, 0.8' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 263 deg);
    02.19, 13.8, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 265 deg);
    01.19, 14.0, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 262 deg);
jul 31.19, 13.8, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD);
    30.19, 13.8, 0.7' (A. Pearce, Skygems Namibia Remote Observatory, 0.45-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 259 deg);
    26.46, 13.3, 0.7' (M. Olason, Arizona, 0.091-m Refractor + CCD; 3' tail in p.a. 258 deg);
    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);


240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 15.76, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.5' tail in p.a. 242 deg);
    14.77, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.3' tail in p.a. 245 deg);
    14.09, 15.0, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.9' tail in p.a. 248 deg);
    12.84, 14.5, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.7' tail in p.a. 248 deg);
    12.78, 14.6, 0.6' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD; 2.5' tail in p.a. 249 deg);
    12.77, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.9' tail in p.a. 244 deg);
    12.08, 14.7, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 247 deg);
    10.09, 14.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 248 deg);
    07.84, 14.6, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.9' tail in p.a. 241 deg);
    07.08, 14.8, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 245 deg);
    06.84, 14.8, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.9' tail in p.a. 243 deg);
    06.78, 14.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 244 deg);
    05.40, 14.8, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 1.7' tail in p.a. 243 deg);
    05.40, 15.3, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 1.6' tail in p.a. 245 deg);
    05.13, 14.0, 1.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.11° tail in p.a. 246 deg);
    04.70, 14.0, 0.8' (K. Harikae, 0.15-m Newtonian + CCD);
    03.12, 14.9, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.79, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3' tail in p.a. 244 deg);
jul 31.84, 14.5, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.1' tail in p.a. 240 deg);
    31.79, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 242 deg);
    30.84, 14.7, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.7' tail in p.a. 249 deg);
    30.79, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 242 deg);
    30.15, 13.9, 1.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.07° tail in p.a. 247 deg);
    30.13, 14.5, 0.5' (G. Pappa, Spain (remote control), 0.5-m Prime focus of a reflector + CCD; 2.5' tail);
    30.04, 14.7, 0.5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 2' tail);
    29.79, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.6' tail in p.a. 245 deg);
    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);
    27.14, 14.8, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    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);
    25.38, 15.0, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 1.7' tail in p.a. 243 deg);
    25.38, 14.6, 0.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 2.5' tail in p.a. 246 deg);
    25.17, 14.0, 1.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.09° 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);


243P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 02.24, 19.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


261P/Larson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 31.07, 18.4, 0.23' (R. Hill, 0.5-m Newtonian + CCD);


303P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 02.17, 20.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


306P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 09.02, 19.8, -- (G. Pappa, Spain (remote control), 0.5-m Prime focus of a reflector + CCD);
    03.32, 19.7, -- (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
aug 02.28, 20.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jul 21.28, 21.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    21.28, 20.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


333P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 11.15, 19.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


351P/Wiegert-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 29.87, 17.8, 0.5' (G. Pappa, Spain (remote control), 0.5-m Prime focus of a reflector + CCD);


356P/WISE
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 30.22, 20.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


362P/Spacewatch
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 13.97, 18.4, 0.27' (J. Zakrajšek, Crni Vrh Observatory, 0.6-m Prime focus of a reflector + CCD);
jul 31.14, 18.5, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    28.57, 18.2, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 250 deg);
    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);


414P/STEREO
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 04.29, 21.0, -- (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
aug 05.04, 18.2, 0.28' (R. Hill, 0.5-m Newtonian + CCD);
jul 25.16, 18.5, 0.23' (R. Hill, 0.5-m Newtonian + CCD);


502P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 31.09, 19.0, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    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);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 15.74, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.74, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.74, 15.3, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.74, 15.4, 0.6' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    06.76, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.77, 15.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.77, 15.1, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.77, 15.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.17, 14.3, 1.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    29.78, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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 23.96, 18.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.99, 19.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 04.17, 16.7, 1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.06° tail in p.a. 91 deg);


C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 15.70, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.71, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.58, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    04.08, 16.2, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.5' tail in p.a. 69 deg);
    01.53, 16.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.56, 16.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.52, 16.5, 0.6' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    30.58, 16.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.75, 16.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);


C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.53, 14.7, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.48, 14.7, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.49, 14.5, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.47, 14.8, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.53, 14.5, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.57, 14.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.85, 14.5, 1.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 203 deg);
    07.87, 14.7, 0.6' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    06.52, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.51, 14.9, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    31.45, 14.4, 0.9' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    30.78, 14.3, 1.2' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.13° tail in p.a. 232 deg);
    30.50, 14.4, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 215 deg);
    30.48, 13.1, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    30.46, 14.7, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    28.97, 15.3, 0.6' (N. Biver, 0.407-m Newtonian);
    28.56, 14.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.90, 14.6, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + 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);
    25.75, 14.3, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.22° tail in p.a. 233 deg);
    25.60, 14.2, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.89, 14.9, 0.6' (N. Biver, 0.407-m Newtonian);
    24.74, 14.3, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.21° tail in p.a. 233 deg);
    24.46, 14.8, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    24.46, 14.3, 0.9' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    24.46, 14.6, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + 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);
    21.02, 14.4, 1.3' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD; 0.16° tail in p.a. 232 deg);
    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);
    20.01, 14.4, 1.4' (T. Lehmann, Chile (remote), 0.25-m Newtonian + CCD; 0.17° tail in p.a. 230 deg);
    19.98, 14.6, 0.94' (K. Hills, 0.5-m Newtonian + CCD);


C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul 25.13, 18.5, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    24.11, 18.6, 2' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    24.05, 18.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    22.95, 18.7, 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
aug 17.06, 15.3, 1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    17.00, 15.5, -- (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    16.96, 15.7, 0.8' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain);
    10.99, 15.2, 1.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.01, 14.7, 1.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 63 deg);
    07.04, 14.7, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 50 deg);
    05.98, 15.2, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.7' tail in p.a. 63 deg);
    05.41, 14.8, 1.2' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.11° tail in p.a. 63 deg);
    03.06, 15.1, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.03, 15.2, 0.5' (R. Hill, 0.5-m Newtonian + CCD);
jul 27.07, 14.0, 1.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.43, 14.8, 1.2' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.11° tail in p.a. 64 deg);
    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);


C/2022 E3 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 10.23, 15.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 14.83, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.06, 15.0, 1.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    13.03, 14.7, 0.9' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    12.84, 14.4, 0.7' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    12.84, 14.7, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.04, 14.7, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.2' tail in p.a. 248 deg);
    10.05, 14.8, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.1' tail in p.a. 248 deg);
    06.85, 14.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.08, 14.7, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 257 deg);
    05.74, 13.9, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    05.16, 14.6, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.11° tail in p.a. 256 deg);
    05.12, 15.1, 0.5' (R. Hill, 0.5-m Newtonian + CCD);
    04.00, 14.7, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD);
    03.10, 15.0, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.70, 14.6, 1.1' (K. Harikae, 0.15-m Newtonian + CCD);
jul 31.86, 14.7, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.74, 14.4, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 3.5' tail in p.a. 255 deg);
    30.86, 14.6, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.74, 13.9, 1' (O. Miyazaki, 0.32-m Newtonian);
    29.75, 14.3, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    29.70, 14.4, 0.8' (K. Harikae, 0.15-m Newtonian + CCD);
    28.86, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.45, 15.1, 0.8' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.13° tail in p.a. 254 deg);
    27.12, 15.0, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + 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);
    25.70, 14.4, 0.9' (K. Harikae, 0.15-m Newtonian + CCD);
    25.31, 15.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    22.70, 14.7, 0.8' (K. Harikae, 0.15-m Newtonian + 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);


C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.97, 17.9, 0.9' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain);
    15.57, 16.9, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.3' tail in p.a. 100 deg);
    09.93, 16.9, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    07.90, 16.7, 0.6' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    05.90, 17.3, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD);
    05.37, 16.1, 1.2' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.11° tail in p.a. 104 deg);
    03.93, 16.4, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD);
    02.94, 17.0, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
jul 29.97, 17.1, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    27.95, 16.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    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);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 11.96, 15.5, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.9' tail in p.a. 212 deg);
    10.94, 15.4, 0.6' (E. Bryssinck, 0.4-m Newtonian + CCD);
    10.20, 16.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    06.99, 15.6, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 247 deg);
    04.41, 15.3, 1.2' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 1.7' tail in p.a. 202 deg);
    03.01, 16.0, 0.4' (R. Hill, 0.5-m Newtonian + CCD);
jul 28.02, 16.7, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.42, 15.4, 0.9' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 1.3' tail in p.a. 231 deg);
    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);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 06.91, 16.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 201 deg);
    05.94, 17.2, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.6' tail);
    04.89, 16.9, 0.28' (R. Hill, 0.5-m Newtonian + CCD);
    03.98, 17.0, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    03.02, 17.2, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    01.99, 17.0, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.6' tail in p.a. 172 deg);
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);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.95, 15.6, 0.7' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain);
    16.59, 15.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.90, 15.6, 0.7' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    15.65, 15.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.83, 16.0, 0.5' (T. Csorgei, Blahova, 0.28-m Schmidt-Cassegrain + CCD);
    14.61, 15.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.04, 15.6, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 109 deg);
    12.61, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.00, 15.6, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 79 deg);
    10.96, 15.2, 0.7' (E. Bryssinck, 0.4-m Newtonian + CCD);
    10.14, 15.4, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    09.97, 15.6, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.8' tail in p.a. 84 deg);
    06.60, 15.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.04, 15.7, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 85 deg);
    05.97, 15.1, 1.8' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.83, 15.3, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD);
    05.65, 15.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.46, 15.7, 0.7' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 1.1' tail in p.a. 90 deg);
    03.04, 15.6, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.54, 15.4, 0.4' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    01.62, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.65, 15.6, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    31.62, 15.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.61, 15.4, 0.6' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    30.63, 15.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.69, 15.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.64, 16.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.99, 16.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + 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);
    25.57, 15.9, 0.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    25.05, 15.5, 0.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.5' tail in p.a. 94 deg);
    24.07, 16.5, 1.1' (U. Pilz, Leipzig, 0.035-m Refractor + 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, 15.3, 0.6' (M. Mašek, CTA-N La Palma, 0.25-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 92 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);
    22.02, 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);


C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 15.47, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.51, 16.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 30.48, 16.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);


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);
    19.99, 18.5, 0.23' (R. Hill, 0.5-m Newtonian + CCD);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 17.90, 15.2, 0.2' (C. Harder, nahe Westerholz, 0.531-m Newtonian);
    16.94, 15.2, 1' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain);
    16.71, 15.0, 0.3' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 17" tail in p.a. 105 deg);
    15.52, 14.5, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.5' tail in p.a. 65 deg);
    14.89, 14.8, 0.39' (S. Shurpakov, 0.41-m Newtonian + CCD);
    13.94, 14.8, 1.3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.7' tail in p.a. 60 deg);
    13.41, 14.6, 1' (M. Mattiazzo, Swan Hill, Victoria, Australia, 0.07-m Camera lens + CCD);
    12.88, 14.8, 1.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1' tail in p.a. 55 deg);
    11.88, 14.9, 0.5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 19" tail in p.a. 70 deg);
    10.92, 15.5, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    10.89, 15.0, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    10.89, 15.3, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 15" tail in p.a. 106 deg);
    07.89, 15.0, 0.7' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 59 deg);
    07.89, 15.5, 0.24' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.2' tail in p.a. 103 deg);
    06.95, 15.1, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.4' tail in p.a. 99 deg);
    06.89, 14.9, 0.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 21" tail in p.a. 94 deg);
    06.88, 14.7, 2.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.92, 15.1, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD);
    05.89, 15.2, 0.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    04.92, 15.1, 0.34' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 17" tail in p.a. 93 deg);
    03.95, 14.9, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD);
    03.92, 15.2, 0.36' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.5' tail in p.a. 102 deg);
    03.00, 15.4, 0.39' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.4' tail in p.a. 100 deg);
    02.98, 15.3, 0.42' (R. Hill, 0.5-m Newtonian + CCD);
    02.92, 15.5, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    02.92, 15.5, 0.2' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.6' tail in p.a. 72 deg);
    02.56, 14.9, 0.8' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    01.97, 14.8, 0.39' (S. Shurpakov, 0.41-m Newtonian + CCD);
    01.90, 15.4, 0.27' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 25" tail in p.a. 102 deg);
jul 31.91, 16.1, 0.3' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 21" tail in p.a. 105 deg);
    31.89, 15.1, 1' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD);
    30.97, 15.2, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    30.93, 15.6, 0.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 26" tail in p.a. 74 deg);
    30.52, 13.9, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    29.99, 15.4, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD);
    29.95, 14.7, 0.5' (N. Biver, 0.407-m Newtonian);
    29.90, 15.8, 0.32' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 28" tail in p.a. 91 deg);
    28.98, 14.7, 0.5' (N. Biver, 0.407-m Newtonian);
    28.54, 14.9, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.7' tail in p.a. 100 deg);
    27.80, 14.0, 0.4' (D. Sidorko, Korenovsk, Russia, 0.406-m Newtonian);
    26.99, 14.5, 0.5' (N. Biver, 0.407-m Newtonian);
    26.29, 15.2, 1.3' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.4' tail in p.a. 101 deg);
    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);
    24.96, 15.2, 0.6' (N. Biver, 0.407-m Newtonian);
    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, 14.3, 0.9' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD);
    23.92, 14.9, 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);


C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 15.50, 17.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.88, 15.7, 0.6' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
jul 31.46, 17.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    30.52, 17.4, 0.35' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.63, 17.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);


C/2024 J2 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 03.14, 16.4, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.10, 15.8, 1.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
jul 25.32, 15.8, 0.9' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);
    25.32, 15.5, 0.9' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD);


C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 16.92, 15.6, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    16.48, 15.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.57, 15.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.66, 15.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.48, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.94, 15.7, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    05.73, 14.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    03.00, 15.3, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    03.00, 15.1, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.49, 15.0, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
jul 31.52, 15.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    31.48, 15.2, 0.4' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    31.08, 16.2, 0.23' (R. Hill, 0.5-m Newtonian + CCD);
    30.93, 15.5, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    30.56, 15.2, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.73, 15.5, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    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);
    24.91, 15.7, 0.5' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD; 0.7' tail in p.a. 185 deg);
    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);
    21.12, 16.0, 0.23' (R. Hill, 0.5-m Newtonian + 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);


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
aug 10.19, 17.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
jul 31.19, 17.6, 0.37' (R. Hill, 0.5-m Newtonian + CCD);
    28.16, 17.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2024 T3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 04.33, 19.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


C/2024 T5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 04.11, 16.6, 0.5' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD; 0.6' tail in p.a. 241 deg);
jul 25.15, 16.7, 0.4' (T. Lehmann, Hakos (remote), 0.45-m Newtonian + CCD; 0.4' tail in p.a. 233 deg);


C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 12.48, 13.9, 0.5' (M. Mattiazzo, 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);


C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 17.89, 12.0, 1.2' (C. Harder, nahe Westerholz, 0.531-m Newtonian; 2.5' tail in p.a. 100 deg);
    17.86, 12.0, 0.9' (M. Kwinta, 0.3-m Newtonian);
    16.94, 13.3, 1.5' (R. Arnold, Skye, Scotland, 0.2-m Schmidt-Cassegrain);
    16.87, 12.2, 1.88' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    16.87, 11.9, 1.2' (C. Harder, Jeersdorf f, 0.252-m Newtonian);
    16.55, 12.7, 1.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.3' tail in p.a. 103 deg);
    16.53, 12.6, 1.1' (K. Yoshimoto, 0.077-m Refractor + CCD; 6' tail in p.a. 100 deg);
    16.47, 12.5, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.6' tail in p.a. 101 deg);
    15.97, 12.3, 1.3' (W. Kutschera, 0.25-m Newtonian);
    15.88, 12.6, 1.5' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    15.87, 12.8, 2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 13.2' tail in p.a. 102 deg);
    15.85, 11.9, 1.5' (M. Meyer, 0.254-m Newtonian);
    15.84, 12.2, 1' (M. Kwinta, 0.3-m Newtonian);
    15.54, 12.5, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.1' tail in p.a. 104 deg);
    14.92, 12.8, 1' (M. Kalina, Prague-Repy-R120 (MPC 247), 0.12-m Refractor + CCD);
    14.88, 11.7, 2.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    14.86, 12.5, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.5' tail in p.a. 112 deg);
    14.86, 12.2, 1.2' (M. Meyer, 0.254-m Newtonian);
    14.85, 12.0, 3' (U. Pilz, 0.32-m Newtonian);
    13.91, 12.0, 3.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 108 deg);
    13.87, 12.0, 4.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.22° tail in p.a. 102 deg);
    13.86, 12.0, 1' (M. Meyer, 0.254-m Newtonian);
    13.76, 13.0, 0.75' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 5.8' tail in p.a. 108 deg);
    13.69, 13.0, 0.75' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 6' tail in p.a. 101 deg);
    13.49, 11.8, 1.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 5' tail in p.a. 110 deg);
    13.49, 12.6, 1.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 5' tail in p.a. 110 deg);
    13.43, 12.5, 1.2' (M. Mattiazzo, Swan Hill, Victoria, Australia, 0.07-m Camera lens + CCD; 3' tail in p.a. 100 deg);
    12.86, 12.1, 0.8' (M. Meyer, 0.254-m Newtonian);
    12.85, 12.1, 3.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.17° tail in p.a. 108 deg);
    12.47, 12.7, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 105 deg);
    11.99, 12.1, 1.2' (W. Kutschera, 0.25-m Newtonian; 1.6° tail);
    11.95, 13.3, 0.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 1.2' tail in p.a. 110 deg);
    11.92, 11.9, 4.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 110 deg);
    11.87, 12.5, 1.8' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 5.6' tail in p.a. 111 deg);
    11.51, 12.7, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 113 deg);
    11.10, 12.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    10.92, 12.1, 3.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 112 deg);
    10.91, 12.8, 1' (E. Bryssinck, 0.4-m Newtonian + CCD; 5.8' tail in p.a. 116 deg);
    10.91, 12.6, 0.94' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 4' tail in p.a. 117 deg);
    10.88, 12.8, 1.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    09.90, 12.3, 3' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 114 deg);
    07.91, 12.6, 1.5' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 121 deg);
    06.96, 13.0, 0.8' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 3.5' tail in p.a. 128 deg);
    05.99, 12.4, 2.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.13° tail in p.a. 132 deg);
    05.96, 13.1, 0.6' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 71" tail in p.a. 108 deg);
    05.87, 12.8, 0.56' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.3' tail in p.a. 133 deg);
    05.72, 13.6, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    05.72, 12.6, 1.1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 4' tail in p.a. 130 deg);
    05.72, 11.5, 1.1' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    05.71, 12.4, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    05.39, 12.4, 2.7' (T. Lehmann, PieTown (remote), 0.3-m Newtonian + CCD; 0.16° tail in p.a. 131 deg);
    04.95, 11.9, 1.13' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 136 deg);
    04.92, 12.3, 0.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 2.5' tail in p.a. 136 deg);
    04.79, 14.0, 0.75' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 5' tail in p.a. 138 deg);
    04.69, 12.2, 1.7' (K. Harikae, 0.15-m Newtonian + CCD);
    03.90, 12.9, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD; 3.4' tail in p.a. 144 deg);
    03.25, 13.1, 0.8' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 142 deg);
    03.02, 11.8, 1.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.98, 12.9, 0.67' (S. Shurpakov, 0.41-m Newtonian + CCD; 3.5' tail in p.a. 153 deg);
    02.70, 12.4, 1.4' (K. Harikae, 0.15-m Newtonian + CCD);
    02.49, 12.8, 1' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    02.00, 12.7, 0.9' (W. Kutschera, 0.25-m Newtonian; 1.4' tail);
    01.99, 12.8, 1.8' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    01.99, 12.4, 2.8' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.09° tail in p.a. 149 deg);
    01.95, 13.3, 0.9' (M. Uhlar, 0.3-m Newtonian + CCD);
    01.90, 12.4, 0.56' (S. Shurpakov, 0.41-m Newtonian + CCD; 3.3' tail in p.a. 154 deg);
    01.58, 12.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.5' tail in p.a. 150 deg);
jul 31.95, 11.6, 1.69' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 148 deg);
    31.59, 12.7, 0.7' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.4' tail in p.a. 155 deg);
    31.59, 14.2, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    31.59, 13.3, 0.7' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2.4' tail in p.a. 155 deg);
    31.18, 13.4, 0.7' (R. Hill, 0.5-m Newtonian + CCD);
    31.15, 12.6, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    30.95, 13.2, 1.2' (J. Zakrajšek, Crni Vrh Observatory (MPC 106), 0.6-m Prime focus of a reflector + CCD; 2.7' tail in p.a. 155 deg);
    30.85, 13.5, 0.38' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 5' tail in p.a. 154 deg);
    30.60, 13.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.9' tail in p.a. 157 deg);
    30.53, 12.3, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    30.16, 12.6, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    30.00, 12.0, 0.8' (C. Harder, Jeersdorf h, 0.252-m Newtonian);
    29.97, 12.8, 1' (N. Biver, 0.407-m Newtonian; 0.03° tail in p.a. 170 deg);
    29.94, 12.9, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.9' tail in p.a. 163 deg);
    29.92, 12.8, 2.1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.09° tail in p.a. 161 deg);
    29.86, 12.9, 0.6' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    29.73, 12.4, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    29.02, 13.3, 0.8' (N. Biver, 0.407-m Newtonian);
    28.91, 14.6, 0.18' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 1.6' tail in p.a. 169 deg);
    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, 12.7, 2.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.01, 13.8, 0.48' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.3' tail in p.a. 156 deg);
    27.01, 12.8, 1' (N. Biver, 0.407-m Newtonian; 0.02° tail in p.a. 190 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);
    26.14, 12.8, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    25.98, 12.2, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 179 deg);
    25.98, 13.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    25.70, 13.1, 1.8' (K. Harikae, 0.15-m Newtonian + CCD);
    25.50, 13.3, 0.9' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    25.15, 13.0, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    25.01, 13.0, 2.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.09° tail in p.a. 182 deg);
    25.00, 13.3, 0.8' (N. Biver, 0.407-m Newtonian);
    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, 13.3, 0.53' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD; 1.8' tail in p.a. 192 deg);
    23.99, 12.8, 0.53' (M. Paradowski, Dabrowa, Poland, 0.254-m Schmidt-Newtonian + CCD; 1.5' tail in p.a. 192 deg);
    23.63, 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, 13.2, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    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);
    22.00, 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, 14.9, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    20.59, 13.7, 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);
    20.07, 14.4, 1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    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);


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);


C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 14.81, 15.2, 0.17' (S. Shurpakov, 0.41-m Newtonian + CCD);


A/2024 U2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 12.28, 19.8, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


P/2007 C2 (Catalina)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 10.34, 19.3, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);


P/2010 U1 (Boattini)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
aug 04.25, 20.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    04.22, 21.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    03.19, 20.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    03.18, 21.0, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);