3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 10.20, 12.4, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    10.20, 12.1, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    10.19, 11.9, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    09.53, 10.9, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.06, 10.4, 0.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2.8' tail in p.a. 274 deg);
    08.65, &13.6, 0.3' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD; 1.2' tail in p.a. 215 deg);
    08.19, 10.7, 2.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    07.79, 11.0, 2.5' (T. Yusa, 0.05-m Refractor + CCD);
    07.58, , 2.3' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD; 1.2' tail in p.a. 293 deg);
    06.83, 11.0, 2.9' (T. Yusa, 0.05-m Refractor + CCD);
    06.63, , 0.8' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD; 0.5' tail in p.a. 70 deg);
    06.17, 10.9, 3.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.85, 10.7, 3.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 8' tail in p.a. 297 deg);
    05.85, 12.1, 2.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    05.85, 10.2, 3.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 3' tail in p.a. 114 deg);
    05.62, , 0.2' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD; 0.5" tail);
    05.25, 12.0, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    05.24, 12.1, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    05.23, 11.9, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    04.64, &, 0.2' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD);
    03.74, +, 0.4' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD);
    03.14, 10.0, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    02.64, , 0.4' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD);
    02.46, 10.3, 3.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Schmidt-Cassegrain + CCD);
    02.31, 10.5, 3.6' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 3.5' tail in p.a. 109 deg);
    02.31, 10.2, 5.4' (M. Mašek, Malargue, 0.3-m Cassegrain reflector + CCD; 3.2' tail in p.a. 106 deg);
    02.25, 11.0, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    02.24, 11.0, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    02.23, 10.1, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    01.26, 10.2, 4.3' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 3' tail in p.a. 103 deg);
    01.20, 10.2, 2' (J. Warell, Lindby Observstory (K60), Skurup, Sweden, 40x100 Binoculars);
    01.18, 10.0, 3' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    01.15, 10.0, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    01.14, 10.9, 2' (C. Harder, Jeersdorf f, 0.349-m Newtonian);
    01.12, 11.4, 6.3' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD; 1.5' tail in p.a. 106 deg);
    01.11, 10.1, 3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD);
nov 30.61, , 3.1' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD);
    30.19, 10.4, 0.9' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    30.11, 9.8, 12' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.18° tail in p.a. 107 deg);
    29.84, 10.7, 4.3' (T. Yusa, 0.05-m Refractor + CCD);
    29.66, , 0.1' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD);
    29.54, 9.9, 2.5' (C. Hergenrother, Tanque Verde, Tucson, Arizona, 30x125.0 Binoculars);
    29.47, 10.1, 1.59' (S. Aguirre, 0.05-m Refractor + CCD);
    29.10, 9.7, 13' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.17° tail in p.a. 106 deg);
    28.84, 10.4, 1.8' (Y. Nagai, 0.044-m Camera lens + CCD);
    28.84, 9.5, 4.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 295 deg);
    28.83, 9.7, 6.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 295 deg);
    28.83, 10.4, 2' (R. Aikawa, 0.203-m Schmidt-Cassegrain);
    28.83, 9.9, 4' (K. Yoshimoto, 20x100 Binoculars);
    28.83, 10.8, 3.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 8' tail in p.a. 295 deg);
    28.81, 11.1, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    28.61, , 0.3' (I. Vazquez, Kalopa, Hawaii, USA, 0.05-m Refractor + CCD; 1.2' tail in p.a. 20 deg);
    28.54, 9.6, 12' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD; 0.09° tail in p.a. 108 deg);
    28.45, 10.5, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 7' tail in p.a. 298 deg);
    28.27, 10.6, 1.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 8" tail in p.a. 295 deg);
    28.25, 11.4, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    28.25, 11.3, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    28.24, 11.3, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    28.24, 11.5, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    28.17, 9.8, 11' (T. Lehmann, Martinsberg, 0.045-m Camera lens + CCD; 0.07° tail in p.a. 111 deg);
    28.17, 10.0, 1.5' (E. Banach, 0.25-m Newtonian);
    28.16, 10.0, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 105 deg);
    28.16, 10.3, 5.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.9' tail in p.a. 300 deg);
    28.16, 10.9, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.2' tail in p.a. 300 deg);
    28.14, 10.3, 3.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    27.26, 12.6, 1.1' (S. Aguirre, Tenerife, España )J.Vannini, 0.4-m Multiple-Mirror Telescope + CCD);
    27.16, 10.2, 4.4' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 8.9' tail in p.a. 108 deg);
    27.15, 10.0, 5' (G. Pappa, Piemonte,Italy (remote control), 0.14-m Newtonian + CCD);
    26.35, 10.0, 2' (B. Young, Tulsa, OK USA, 0.125-m Maksutov);
    26.25, 11.3, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    26.25, 10.2, 2.2' (S. Getliffe, 0.15-m Newtonian);
    26.24, 11.7, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    26.23, 11.7, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    26.22, 11.6, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    26.22, 10.0, 5.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    26.18, 9.7, 2.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    25.46, 9.8, 7.2' (T. Lehmann, ChopinObs (remote), 0.08-m Refractor + CCD; 0.09° tail in p.a. 112 deg);
    25.43, 10.4, 3.2' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 0.4' tail in p.a. 116 deg);
    25.25, 10.2, 4.6' (D. Heggie, Duisdale Mor, Sleat, Isle of Skye, Scotland, 0.05-m Refractor + CCD; 6' tail in p.a. 106 deg);
    24.27, 10.6, 3.7' (D. Heggie, Duisdale Mor, Sleat, Isle of Skye, Scotland, 0.05-m Refractor + CCD; 1.9' tail in p.a. 298 deg);
    24.11, 10.2, 1.5' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.83, 10.2, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    23.78, 10.5, 3' (T. Yusa, 0.05-m Refractor + CCD);
    23.31, 10.2, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    23.21, 9.7, 7.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.12° tail in p.a. 298 deg);
    23.17, 10.8, 2.5' (U. Pilz, 0.32-m Newtonian);
    23.17, 10.2, 1.1' (M. Mašek, 0.4-m Newtonian);
    23.17, 10.1, 3' (J. Warell, Lindby Observatory (K60), Skurup, Sweden, 40x100 Binoculars);
    23.16, 10.1, 4.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    23.11, 9.7, 8.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.15° tail in p.a. 107 deg);
    23.09, 10.2, 2.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.02, 11.1, -- (S. Purabiya, Ahmedabad, India, 0.153-m Ritchey-Chretien + CCD);
    22.49, 9.8, 3' (C. Hergenrother, Tanque Verde, Tucson, Arizona, 30x125.0 Binoculars);
    22.30, 9.7, 3' (M. Goiato, 20x100 Binoculars);
    22.29, 9.8, 3' (W. Souza, 20x80 Binoculars);
    22.22, 10.0, 2' (C. Labordena, Benlloch, 0.2-m Schmidt-Cassegrain);
    22.22, 9.8, 5.8' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    22.21, 9.9, 1.8' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian);
    22.20, 9.5, 4' (M. Meyer, 0.152-m Refractor);
    22.20, 10.1, 3.9' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 1.4' tail in p.a. 113 deg);
    22.19, 10.0, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    22.19, 9.8, 8.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.2° tail in p.a. 106 deg);
    22.10, 9.7, 8.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.11° tail in p.a. 108 deg);
    22.10, 10.4, 1.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.89, 10.3, 2.1' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    21.86, 10.9, 2.8' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    21.86, 9.5, 3.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 15' tail in p.a. 298 deg);
    21.86, 10.0, 4.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 15' tail in p.a. 298 deg);
    21.84, 9.9, 2.5' (R. Aikawa, 0.203-m Schmidt-Cassegrain);
    21.83, 10.1, 1.6' (O. Miyazaki, 0.32-m Newtonian);
    21.31, 10.2, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    21.29, 9.7, 3' (W. Souza, 20x80 Binoculars);
    21.25, 10.8, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    21.24, 10.5, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    21.23, 10.6, -- (A. Pratt, Almalex Observatory, Leeds, 0.279-m Schmidt-Cassegrain + CCD);
    21.20, 10.3, 2' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    21.17, 10.3, 3.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    21.08, 10.4, 1.6' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    20.83, 10.5, 1.2' (Y. Nagai, 0.044-m Camera lens + CCD);
    20.82, 10.4, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    20.81, 9.3, 3.5' (S. Yoshida, 0.4-m Newtonian);
    20.31, 9.8, 2' (M. Goiato, 0.22-m Newtonian);
    20.31, 10.1, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    20.20, 10.1, 2.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    20.19, 9.6, 4' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    20.16, 9.6, 2.5' (P. Guzik, 25x100 Binoculars);
    20.08, 10.1, 2.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    19.82, 10.5, 2' (O. Miyazaki, 0.32-m Newtonian);
    19.31, 9.7, 2' (M. Goiato, 0.22-m Newtonian);
    19.31, 9.9, 2' (J. de Souza Aguiar, 0.3-m Newtonian);
    19.24, 9.8, 6.9' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD; 10' tail in p.a. 300 deg);
    19.24, 9.9, 6.4' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD; 9' tail in p.a. 300 deg);
    19.20, 9.8, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    19.19, 9.7, 1.8' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian);
    19.19, 10.0, 2.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 19' tail in p.a. 304 deg);
    19.17, 9.8, 2' (P. Guzik, 25x100 Binoculars);
    19.10, 10.7, 2.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    18.83, 9.8, 2' (R. Aikawa, 0.203-m Schmidt-Cassegrain);
    18.52, 10.4, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 16' tail in p.a. 291 deg);
    18.24, 9.3, 4' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    18.21, 10.7, 1.5' (G. Zini, 0.15-m Newtonian + CCD);
    18.19, 10.2, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.9° tail in p.a. 296 deg);
    18.19, 10.0, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3' tail in p.a. 106 deg);
    18.18, 10.8, 5.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8° tail in p.a. 294 deg);
    18.12, 9.2, 1.7' (C. Harder, Capricorn Restcamp / Namibia, 0.221-m Newtonian);
    17.85, 9.8, 4.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 27' tail in p.a. 292 deg);
    17.85, 9.5, 3.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    17.84, 10.7, 2.5' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    17.52, 10.1, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 11' tail in p.a. 293 deg);
    17.48, 9.7, 3' (G. Pappa, Texas,USA (remote control), 0.08-m Refractor + CCD);
    17.41, 10.0, 2.8' (B. Gilmore, Cismont Ridge (MPC 247), 0.13-m Newtonian + CCD; 61.8' tail in p.a. 291 deg);
    17.18, 9.7, 3.5' (M. Meyer, 0.152-m Refractor);
    17.11, 10.5, 1.7' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    16.83, 10.0, 3.6' (T. Yusa, 0.05-m Refractor + CCD);
    16.18, 9.8, 3' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD; 8' tail);
    16.11, 11.1, 0.67' (S. Shurpakov, 0.41-m Newtonian + CCD; 7.5' tail in p.a. 304 deg);
    15.90, 10.0, 1.7' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    15.52, 10.2, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    15.25, 9.4, 5.1' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    15.24, 9.7, 4.1' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    14.83, 10.0, 3.1' (T. Yusa, 0.05-m Refractor + CCD);
    14.52, 9.8, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.19, 9.6, 2.5' (T. Karhula, Virsbo, Sweden, 0.12-m Refractor);
    13.85, 10.5, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 20' tail in p.a. 295 deg);
    13.85, 9.7, 3.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 20' tail in p.a. 295 deg);
    13.85, 9.4, 3.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 20' tail in p.a. 295 deg);
    13.84, 9.7, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    13.54, 9.9, 1.9' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    13.20, 9.5, 3.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    12.31, 10.1, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    12.20, 9.5, 1.8' (A. Kammerer, Voelkersbach, Germany, 0.397-m Newtonian);
    12.16, 10.2, 0.8' (W. Hasubick, 0.44-m Newtonian);
    11.83, 9.9, 2.5' (O. Miyazaki, 0.32-m Newtonian);
    11.31, 10.0, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    11.23, 9.9, 1.5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    10.85, 9.4, 3.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 6' tail in p.a. 270 deg);
    10.85, 9.7, 3.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 18' tail in p.a. 296 deg);
    10.85, 10.4, 3.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 18' tail in p.a. 296 deg);
    10.83, 9.8, 1.5' (R. Aikawa, 0.203-m Schmidt-Cassegrain);


24P/Schaumasse
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 07.80, 12.1, 3.4' (T. Yusa, 0.05-m Refractor + CCD);
    06.81, 10.8, 5.6' (T. Yusa, 0.05-m Refractor + CCD);
    06.17, 12.0, 3.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    05.80, 11.6, 4.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 6' tail in p.a. 295 deg);
    01.11, 10.5, 3.5' (C. Harder, Jeersdorf f, 0.349-m Newtonian);
    01.08, 10.6, 11' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
nov 30.06, 10.6, 12' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    29.77, 11.7, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    29.49, 10.4, 13' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD);
    29.46, 13.0, 1.6' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    29.30, 11.5, 2' (M. Goiato, 0.22-m Newtonian);
    29.07, 10.7, 13' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    28.77, 11.9, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    28.71, 13.0, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    28.47, 10.4, 12' (T. Lehmann, Utah (remote), 0.106-m Refractor + CCD);
    28.18, 11.7, 5.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    28.15, 11.5, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    28.15, 12.0, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7' tail in p.a. 287 deg);
    28.14, 12.4, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 287 deg);
    27.99, 11.9, 3.3' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    26.99, 12.0, 3.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    26.01, 12.1, 3.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    25.40, 11.3, 6.8' (T. Lehmann, ChopinObs (remote), 0.08-m Refractor + CCD);
    24.05, 11.5, 3' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.80, 12.3, 2.7' (O. Miyazaki, 0.32-m Newtonian);
    23.76, 12.5, 3.2' (T. Yusa, 0.05-m Refractor + CCD);
    23.07, 11.6, 3.5' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.03, 12.1, 2.7' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    22.18, 13.2, 1.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    22.10, 11.3, 9.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.5' tail in p.a. 281 deg);
    22.08, 11.8, 4.9' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 1.5' tail in p.a. 139 deg);
    22.07, 11.2, 9.1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.9' tail in p.a. 289 deg);
    22.06, 11.6, 3.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.88, 14.6, 1' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    21.82, 11.9, 3.9' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    21.28, 13.0, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    21.10, 13.0, 1.5' (W. Kutschera, 0.508-m Newtonian);
    21.05, 11.3, 4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.02, 11.7, 3.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    20.81, 12.8, 2.8' (O. Miyazaki, 0.32-m Newtonian);
    20.80, 12.0, 1.7' (S. Yoshida, 0.4-m Newtonian);
    20.28, 13.0, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    20.05, , 4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    19.78, 12.8, 1.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    19.77, 13.0, 2.4' (O. Miyazaki, 0.32-m Newtonian);
    19.28, 13.2, 1' (J. de Souza Aguiar, 0.3-m Newtonian);
    19.15, 11.2, 9.2' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    19.15, 13.0, 3.7' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    19.13, 13.0, 2.2' (T. Sciezor, Cracow, 0.03-m Camera lens + CCD);
    19.06, 11.4, 3.5' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    18.53, 12.8, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    18.39, 14.0, 1.2' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    18.21, 11.7, 2' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    18.17, 13.4, 1.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    17.46, 13.7, 1.4' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    17.19, 13.2, 0.8' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian);
    17.09, 11.3, 3.5' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    16.77, 13.5, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    16.71, 13.1, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    16.39, 13.7, 1' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    16.18, 13.6, 1' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    15.81, 13.5, 1.6' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    15.79, 14.2, 1.2' (A. Pearce, Mardella Observatory, 1-m Newtonian + CCD);
    15.77, 13.3, 1.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.16, 12.4, 4.1' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    15.16, 13.8, 2.3' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    14.78, 13.6, 1.7' (T. Yusa, 0.05-m Refractor + CCD);
    14.77, 13.8, 1.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.50, 13.7, 1.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.33, 14.0, 1.2' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    13.98, 13.8, 0.9' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.34, 14.4, 1.1' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);


29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 10.13, 13.1, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    07.79, 14.2, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    06.77, 13.9, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    05.82, 13.9, -- (K. Yoshimoto, 0.3-m Newtonian + CCD);
    02.23, 16.5, 0.45' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    01.24, 16.6, 0.3' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
nov 29.71, 16.0, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    28.86, 16.5, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);
    28.20, 15.4, 1.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    26.21, 16.4, 0.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    21.13, 16.6, 0.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    18.18, 16.5, 0.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.18, 16.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.54, 14.6, 1' (M. Olason, Arizona, 0.05-m Refractor + CCD);


43P/Wolf-Harrington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 01.80, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 293 deg);
nov 30.85, 17.2, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 1.6' tail in p.a. 285 deg);
    30.80, 16.9, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 289 deg);
    29.80, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 291 deg);
    28.80, 17.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 285 deg);
    27.80, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 289 deg);
    26.79, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.80, 17.0, 0.33' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    22.14, 16.7, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 293 deg);
    21.10, 16.6, 0.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.14° tail in p.a. 289 deg);
    19.81, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 294 deg);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 06.54, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    05.93, 17.6, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    03.53, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
nov 30.57, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.53, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.56, 16.4, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.53, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 61 deg);
    20.85, 16.2, 1.1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.5' tail in p.a. 75 deg);
    20.55, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 63 deg);
    19.54, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 72 deg);
    18.78, 17.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5' tail in p.a. 36 deg);
    18.71, 16.9, 0.43' (M. Lombardo, Zen Observatory, Scandicci (MPC M26), 0.3-m Ritchey-Chretien + CCD);
    15.59, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


48P/Johnson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 07.56, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 65 deg);
    06.56, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 69 deg);
    01.53, 16.0, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 57 deg);
nov 30.53, 16.0, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.59, 16.1, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 64 deg);
    29.02, 16.8, 0.45' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    28.61, 16.3, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 66 deg);
    27.64, 16.1, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 250 deg);
    26.68, 16.1, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.4' tail in p.a. 254 deg);
    23.88, 16.0, 0.8' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 0.8' tail in p.a. 58 deg);
    21.99, 15.9, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 255 deg);
    20.67, 16.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 65 deg);
    19.62, 16.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 65 deg);
    17.54, 16.1, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 65 deg);
    16.53, 16.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 64 deg);
    15.70, 16.1, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 64 deg);
    14.65, 16.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 67 deg);
    13.67, 16.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.60, 16.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 20.78, 16.9, 1.1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);


78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 28.53, 15.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.78, 17.1, 0.49' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD);
    20.83, 16.2, 1.3' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    20.54, 16.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.83, 17.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    15.55, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.55, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.04, 16.8, 0.24' (M. Mašek, Pierre Auger Observatory, Malargue (MPC I47), 0.3-m Schmidt-Cassegrain + CCD);
    14.04, 16.7, 0.24' (M. Mašek, Pierre Auger Observatory, Malargue (MPC I47), 0.3-m Schmidt-Cassegrain + CCD);
    12.55, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.81, 18.1, 0.7' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD);
    14.08, 18.5, 0.31' (M. Mašek, Pierre Auger Observatory, Malargue (MPC I47), 0.3-m Schmidt-Cassegrain + CCD);


95P/Chiron
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 18.79, 18.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


145P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 07.58, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    05.91, 17.5, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 30.55, 16.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.55, 16.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.58, 16.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    25.57, 16.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.57, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.56, 17.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.58, 16.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.57, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 9.9" tail in p.a. 80 deg);
    15.11, 16.6, 0.3' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    12.57, 17.3, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


210P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.53, 11.1, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 5' tail in p.a. 301 deg);
    02.53, 10.8, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 8' tail in p.a. 293 deg);
nov 30.87, 11.1, 2.1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 295 deg);
    30.19, 10.5, 2.7' (T. Lehmann, Martinsberg, 0.045-m Camera lens + CCD; 0.24° tail in p.a. 289 deg);
    28.87, 10.3, 2.1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 290 deg);
    26.54, 9.5, 2.4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 13' tail in p.a. 282 deg);


217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 03.17, 18.2, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.55, 14.0, 0.7' (M. Olason, Arizona, 0.05-m Refractor + CCD; 2' tail in p.a. 283 deg);
    02.55, 13.9, 0.7' (M. Olason, Arizona, 0.05-m Refractor + CCD; 4' tail in p.a. 289 deg);
nov 20.84, [13.5, 0.6' (S. Yoshida, 0.4-m Newtonian);
    19.25, 13.6, 1.8' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    19.25, 13.3, 1.8' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    15.53, 14.0, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 310 deg);


240P-B/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 08.90, 13.6, 0.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    07.55, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.88, 13.4, 1.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.58, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.56, 15.0, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    05.56, 14.4, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.95, 14.6, 0.7' (A. Haji, Al-Fulaij Observatory, Oman (MPC C97), 0.61-m "for observations with the largest telescopes" + CCD; 0.5' tail in p.a. 312 deg);
    01.92, 13.4, 1.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    01.54, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
nov 30.84, 14.7, 0.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD);
    30.83, 14.9, 0.1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    30.61, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.96, 14.1, 0.94' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    29.69, 14.3, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    29.62, 14.3, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.59, 14.8, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    29.03, 14.4, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    28.69, 14.4, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    28.63, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.86, 14.5, 0.25' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    27.83, 14.4, 0.8' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    27.80, 14.1, 1' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);
    27.68, 14.5, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    27.66, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.93, 14.5, 0.8' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    26.80, 14.4, 0.8' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);
    26.71, 14.5, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.69, 14.4, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    26.06, 14.3, 0.8' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    25.95, 14.5, 0.94' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.86, 14.2, 0.8' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD);
    25.78, 14.7, 0.7' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    25.09, 14.6, 0.7' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    23.89, 14.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.89, 13.7, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.89, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.82, 14.8, 0.7' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 0.4' tail in p.a. 301 deg);
    23.14, 14.8, 0.7' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    23.13, 14.4, 0.8' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    21.93, 14.0, 1.2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    20.68, 15.0, 0.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.68, 14.9, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.49, 15.7, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.3' tail in p.a. 310 deg);
    20.12, 15.4, 0.6' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    19.67, 15.2, 0.7' (A. Pearce, Nedlands, Perth (MPC P14), 0.05-m Refractor + CCD);
    19.65, 15.0, 0.7' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    18.85, 14.8, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.85, 15.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.84, 15.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.15, 14.8, 0.8' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    17.55, 15.0, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.68, 15.0, 0.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    16.55, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.05, 15.6, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    15.71, 15.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.68, 14.9, 0.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.68, 15.2, 0.6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.67, 15.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.48, 15.8, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    13.68, 15.8, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.62, 15.8, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.93, 15.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.93, 16.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.93, 16.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    11.68, 16.0, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.93, 14.9, 1.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 1.7' tail in p.a. 268 deg);


240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.42, 12.7, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    09.08, 14.3, 1.2' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    08.90, 12.4, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 2' tail in p.a. 243 deg);
    07.55, 12.3, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 242 deg);
    06.88, 12.4, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    06.58, 12.3, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.3' tail in p.a. 234 deg);
    06.56, 13.0, 1' (T. Yusa, 0.05-m Refractor + CCD; 1.4' tail in p.a. 241 deg);
    05.56, 12.1, 1.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.3' tail in p.a. 237 deg);
    04.91, 12.3, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD);
    01.95, 14.8, 0.39' (A. Haji, Al-Fulaij Observatory, Oman (MPC C97), 0.61-m "for observations with the largest telescopes" + CCD);
    01.92, 12.5, 2' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    01.84, 12.3, 3.4' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.1° tail in p.a. 239 deg);
    01.54, 12.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 240 deg);
nov 30.84, 12.4, 1.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 10.2' tail in p.a. 240 deg);
    30.83, 12.5, 0.7' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 0.5' tail in p.a. 238 deg);
    30.61, 12.1, 2.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.7' tail in p.a. 236 deg);
    29.96, 12.1, 1.5' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    29.69, 12.1, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 5.5' tail in p.a. 234 deg);
    29.62, 12.0, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.4' tail in p.a. 239 deg);
    29.59, 12.7, 1.4' (T. Yusa, 0.05-m Refractor + CCD; 2.5' tail in p.a. 247 deg);
    29.17, 11.9, 2' (M. Goiato, 0.22-m Newtonian);
    29.03, 11.9, 3' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    28.99, 11.6, 4.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.49° tail in p.a. 242 deg);
    28.69, 12.1, 2.1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.5' tail in p.a. 241 deg);
    28.66, 12.4, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    28.63, 12.0, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 9.5' tail in p.a. 241 deg);
    27.86, 12.5, 0.8' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 1.5' tail in p.a. 255 deg);
    27.83, 12.1, 2' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 3.9' tail in p.a. 245 deg);
    27.80, 12.1, 2' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);
    27.68, 11.9, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    27.66, 11.7, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.6' tail in p.a. 248 deg);
    26.93, 12.2, 2.2' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 9.7' tail in p.a. 240 deg);
    26.80, 12.3, 1.7' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);
    26.71, 12.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.7' tail in p.a. 248 deg);
    26.69, 12.2, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.4' tail in p.a. 246 deg);
    26.06, 11.9, 2.2' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 4.5' tail in p.a. 240 deg);
    25.95, 12.3, 1.5' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.86, 12.4, 1.3' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD; 6' tail in p.a. 240 deg);
    25.78, 11.9, 2.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 9' tail in p.a. 243 deg);
    25.22, [11.9, -- (S. Aguirre, Real del Molinito, Hermosillo, Sonora, Mexico, 0.15-m Schmidt-Cassegrain);
    25.21, 12.8, 0.9' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    25.09, 11.8, 2.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 10.7' tail in p.a. 239 deg);
    23.97, 12.6, 1' (E. Banach, 0.25-m Newtonian);
    23.89, 11.1, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 17.8' tail in p.a. 240 deg);
    23.89, 11.9, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.7' tail in p.a. 241 deg);
    23.89, 12.0, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 18.4' tail in p.a. 244 deg);
    23.83, 12.1, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 1.5' tail in p.a. 270 deg);
    23.82, 12.2, 2' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 5.7' tail in p.a. 249 deg);
    23.14, 11.5, 3.8' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 10.1' tail in p.a. 241 deg);
    23.13, 11.6, 3.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 2' tail in p.a. 234 deg);
    22.86, 11.4, 5.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.45° tail in p.a. 249 deg);
    22.86, 12.6, 1.3' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 2.5' tail in p.a. 260 deg);
    22.57, 13.0, 1.3' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    22.15, 11.8, 4.3' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    21.93, 12.3, 2.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    21.91, 12.2, 2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 6' tail in p.a. 239 deg);
    21.84, 12.2, 1.4' (M. Meyer, 0.254-m Newtonian);
    21.83, 12.6, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 1.5' tail in p.a. 270 deg);
    21.56, 12.7, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    21.52, 12.3, 1.7' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    21.04, 12.1, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    20.96, 11.7, 4.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.45° tail in p.a. 245 deg);
    20.95, 11.2, 1.4' (W. Kutschera, 0.25-m Newtonian; 0.04° tail);
    20.94, 12.8, 1.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 5.7' tail in p.a. 244 deg);
    20.89, 12.4, 1.3' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 5' tail in p.a. 260 deg);
    20.68, 12.0, 2.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 13.7' tail in p.a. 243 deg);
    20.68, 11.7, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 10.4' tail in p.a. 244 deg);
    20.49, 12.2, 1.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 13' tail in p.a. 247 deg);
    20.47, 12.0, 2.6' (M. Mattiazzo, 0.07-m Camera lens + CCD);
    20.12, 12.3, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 7' tail in p.a. 257 deg);
    19.86, 12.0, 1.3' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 3' tail in p.a. 270 deg);
    19.74, 11.9, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    19.67, 11.9, 2.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 13' tail in p.a. 246 deg);
    19.65, 11.5, 4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 13.1' tail in p.a. 247 deg);
    19.06, 12.8, 0.5' (E. Banach, 0.25-m Newtonian);
    19.04, 12.4, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    18.96, 12.6, 0.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 1.5' tail in p.a. 250 deg);
    18.85, 11.1, 5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.2' tail in p.a. 248 deg);
    18.85, 11.8, 4.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.1' tail in p.a. 247 deg);
    18.84, 12.5, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.8' tail in p.a. 247 deg);
    18.15, 11.8, 3.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD);
    17.93, 12.5, 0.6' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian);
    17.55, 11.3, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 10.2' tail in p.a. 247 deg);
    17.07, 11.7, 0.7' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 2' tail in p.a. 290 deg);
    16.98, 12.2, 1.69' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    16.68, 12.3, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.2' tail in p.a. 253 deg);
    16.55, 11.9, 3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 10' tail in p.a. 247 deg);
    16.05, 13.4, 0.39' (S. Shurpakov, 0.41-m Newtonian + CCD; 6' tail in p.a. 249 deg);
    15.88, 12.2, 1.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 3' tail in p.a. 270 deg);
    15.71, 12.1, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.3' tail in p.a. 249 deg);
    15.68, 12.3, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 6.2' tail in p.a. 246 deg);
    14.68, 12.1, 2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 2.2' tail in p.a. 258 deg);
    14.67, 12.3, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8' tail in p.a. 245 deg);
    14.48, 12.3, 1.5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 6' tail in p.a. 256 deg);
    13.95, 11.9, 0.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 1.3' tail in p.a. 268 deg);
    13.68, 12.4, 1.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 7.5' tail in p.a. 246 deg);
    13.67, 12.3, 1.7' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 1.6' tail in p.a. 253 deg);
    12.97, 13.0, 1.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3.6' tail in p.a. 257 deg);
    12.95, 12.6, 1.1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 2.6' tail in p.a. 270 deg);
    12.62, 12.6, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.2' tail in p.a. 250 deg);
    11.94, 11.9, 3.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.45° tail in p.a. 251 deg);
    11.93, 11.7, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.2' tail in p.a. 258 deg);
    11.93, 12.8, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 258 deg);
    11.93, 12.3, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8' tail in p.a. 255 deg);
    11.90, 12.6, 1.1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 3' tail in p.a. 240 deg);
    11.86, 12.9, 1.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 253 deg);
    11.68, 12.5, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.9' tail in p.a. 248 deg);
    10.93, 12.2, 4.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 1.7' tail in p.a. 268 deg);
    10.71, 12.4, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.5' tail in p.a. 263 deg);


302P/Lemmon-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 03.57, 17.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
nov 27.58, 16.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.62, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    23.84, 16.8, 0.7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 2.2' tail in p.a. 258 deg);
    20.60, 16.5, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.57, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.63, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.52, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 249 deg);
    15.52, 17.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.12, 16.4, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.53, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    13.69, 16.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.53, 16.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.92, 16.4, 0.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.2' tail in p.a. 272 deg);


407P/PANSTARRS-Fuls
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 24.24, 20.1, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);
    14.26, 20.6, -- (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
dec 06.88, 19.5, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 27.57, 17.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.59, 17.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.52, 17.9, 0.45' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.52, 18.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.52, 17.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 07.65, 15.0, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
nov 30.65, 15.0, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.65, 15.0, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.68, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.73, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.75, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    22.04, 14.3, 2.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.3' tail in p.a. 348 deg);
    20.72, 15.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.69, 14.9, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.54, 14.8, 1' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.52, 14.7, 0.8' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.68, 14.9, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.60, 14.9, 0.9' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.75, 14.9, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.71, 15.0, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.71, 14.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.77, 14.8, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 22.92, 16.4, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);


C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 30.63, 17.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.63, 17.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.64, 17.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.69, 17.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.73, 17.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.70, 17.4, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.66, 17.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.66, 17.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.61, 17.5, 0.48' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.73, 17.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.69, 17.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 23.91, 16.6, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.73, 15.7, 0.7' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    21.86, 15.5, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 36 deg);
    18.75, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.74, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    18.72, 16.4, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.76, 16.7, 0.28' (S. Shurpakov, 0.41-m Newtonian + CCD);
    15.21, 16.8, 0.6' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.60, 13.5, 1' (A. Pearce, Nedlands, Perth, 0.35-m Schmidt-Cassegrain + CCD);
    09.43, 13.6, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    07.54, 13.8, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    06.48, 13.9, 1.1' (T. Yusa, 0.05-m Refractor + CCD);
    05.55, 13.8, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.79, 13.9, 2.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.04° tail in p.a. 259 deg);
    01.55, 13.7, 1.1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
nov 30.60, 13.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.2' tail in p.a. 248 deg);
    29.99, 14.2, 0.56' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    29.80, 14.4, 0.5' (M. Lombardo, Zen Observatory, Scandicci (MPC M26), 0.3-m Ritchey-Chretien + CCD);
    29.61, 13.8, 1.3' (T. Yusa, 0.05-m Refractor + CCD);
    29.60, 13.9, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.3' tail in p.a. 251 deg);
    28.67, 12.8, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    28.62, 13.3, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.90, 13.7, 1.5' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Refractor + CCD);
    27.65, 13.5, 1.1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.69, 13.7, 1.1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.3' tail in p.a. 244 deg);
    26.15, 13.8, 1.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    25.93, 14.3, 0.56' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    25.87, 13.5, 2.1' (C. Ratinaud, Landehen (MPC Z43), 0.25-m Newtonian + CCD; 3.9' tail in p.a. 255 deg);
    25.21, 14.3, 0.9' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    25.21, [11.8, -- (S. Aguirre, Real del Molinito, Hermosillo, Sonora, Mexico, 0.15-m Schmidt-Cassegrain);
    23.88, 14.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 246 deg);
    23.88, 13.3, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.3' tail in p.a. 245 deg);
    23.87, 14.5, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.9' tail in p.a. 250 deg);
    23.82, 14.0, 0.9' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.77, 14.0, 0.9' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 6.8' tail in p.a. 257 deg);
    22.85, 13.9, 0.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    22.51, 13.6, 1.2' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);
    21.94, 13.8, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.18° tail in p.a. 256 deg);
    21.90, 14.1, 0.56' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    21.86, 13.9, 1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 1.6' tail in p.a. 248 deg);
    21.82, 13.6, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.58, 13.1, 1' (O. Miyazaki, 0.32-m Newtonian);
    20.86, 13.6, 0.9' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    20.65, 13.6, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.85, 13.7, 0.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    19.75, 13.8, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    19.63, 13.6, 1.2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.1' tail in p.a. 252 deg);
    18.95, 13.8, 0.9' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    18.79, 14.2, 2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.3' tail in p.a. 252 deg);
    17.90, 13.6, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    17.87, 13.6, 1.7' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);
    17.65, 13.6, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    17.03, 13.2, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    17.00, 13.6, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    16.97, 14.1, 0.8' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 1' tail in p.a. 249 deg);
    16.60, 13.9, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.4' tail in p.a. 249 deg);
    16.02, 14.1, 0.62' (S. Shurpakov, 0.41-m Newtonian + CCD; 5' tail in p.a. 251 deg);
    16.00, 14.1, 0.4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    15.68, 13.7, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.61, 13.6, 2.6' (T. Yusa, 0.05-m Refractor + CCD; 3.1' tail in p.a. 249 deg);
    15.23, 13.6, 1.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.94, 13.6, 0.5' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian);
    14.61, 14.0, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.4' tail in p.a. 252 deg);
    13.94, 12.8, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 1.9' tail in p.a. 260 deg);
    13.65, 13.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    12.92, 14.1, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    12.61, 13.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.95, 13.2, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.6' tail in p.a. 256 deg);
    11.94, 14.0, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 9.1' tail in p.a. 255 deg);
    11.94, 14.4, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 255 deg);
    11.88, 13.0, 0.9' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    11.65, 13.7, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.97, 14.8, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    10.58, 13.6, 1.1' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD);


C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 30.78, 15.3, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.3' tail in p.a. 256 deg);
    29.78, 15.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 2.5' tail in p.a. 259 deg);
    28.78, 15.3, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 263 deg);
    27.79, 15.2, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 260 deg);
    24.04, 16.3, -- (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.17, 15.3, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 263 deg);
    19.15, 14.6, 1.8' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);
    19.15, 15.0, 1.8' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD);


C/2022 R6 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 02.14, 17.3, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 30.68, 16.7, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.68, 16.5, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.70, 16.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.75, 16.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.77, 16.5, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 242 deg);
    20.73, 16.7, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.71, 16.6, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    15.75, 16.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    14.73, 16.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 18.72, 18.0, 0.31' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 23.92, 15.5, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.83, 16.0, 0.33' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    18.77, 15.7, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 22.73, 16.8, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 276 deg);
    18.75, 17.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.71, 16.1, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    17.85, 15.8, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    15.68, 15.8, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    15.10, 15.1, 0.3' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 02.16, 17.0, 0.34' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 22.04, 16.5, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 208 deg);


C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 03.06, 10.7, 1.6' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    02.06, 10.7, 1.6' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 48 deg);
nov 21.70, 12.0, 1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 1.3' tail in p.a. 25 deg);
    21.66, 11.4, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    21.08, 11.8, 1.6' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    20.68, 11.7, 1.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 1' tail in p.a. 24 deg);
    17.68, 12.3, 1.1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 1.7' tail in p.a. 7 deg);
    15.08, 11.7, 1.6' (M. Olason, Arizona, 0.05-m Refractor + CCD; 2' tail in p.a. 14 deg);
    13.06, 13.8, 2' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);


C/2024 J2 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 28.58, 18.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    27.60, 18.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    26.64, 18.1, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.62, 17.7, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    19.59, 17.9, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.58, 17.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 15.13, 15.4, 0.4' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 05.26, 18.3, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 22.20, 18.1, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    17.54, 16.7, 0.24' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.78, 17.0, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 108 deg);
    18.77, 16.0, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 128 deg);


C/2024 T5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.66, 15.2, 0.5' (A. Pearce, Nedlands, Perth, 0.35-m Schmidt-Cassegrain + CCD);
    07.62, 15.0, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    05.58, 15.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 262 deg);
    02.94, 15.1, 1.2' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD);
    01.57, 15.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 260 deg);
nov 30.58, 15.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 258 deg);
    29.57, 15.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 254 deg);
    28.60, 15.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 260 deg);
    27.62, 15.1, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 255 deg);
    26.65, 15.2, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 263 deg);
    25.24, 14.6, 0.6' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    23.80, 15.4, 0.25' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    22.83, 15.3, 0.25' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    22.67, 15.2, 0.38' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    21.81, 15.3, 0.25' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.02, 15.3, 0.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.5' tail in p.a. 269 deg);
    20.84, 15.3, 0.2' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    20.64, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 255 deg);
    19.84, 15.3, 0.25' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    19.60, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 272 deg);
    17.94, 15.4, 0.3' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    17.57, 15.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 258 deg);
    16.56, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 251 deg);
    15.80, 15.5, 0.15' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    15.66, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 275 deg);
    15.27, 15.1, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.63, 15.3, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 254 deg);
    13.71, 15.4, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 275 deg);
    12.94, 15.3, 0.35' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    12.64, 15.2, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.90, 15.9, 0.35' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    10.67, 15.3, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2024 X2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 16.08, 18.5, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);


C/2025 A6 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.95, 5.2, 3' (M. Goiato, 20x100 Binoculars; 30' tail in p.a. 90 deg);
    21.77, 6.6, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 30' tail in p.a. 90 deg);
    21.06, 5.3, 5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 23' tail in p.a. 80 deg);
    20.95, 5.0, 3' (M. Goiato, 20x100 Binoculars; 40' tail in p.a. 90 deg);
    20.94, 5.0, 5' (W. Souza, 20x80 Binoculars; 0.5° tail);
    20.77, 6.4, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 1° tail in p.a. 80 deg);
    19.78, 6.2, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 30' tail in p.a. 70 deg);
    18.95, 4.9, 4' (M. Goiato, 7x50 Binoculars; 1° tail in p.a. 80 deg);
    18.91, 5.1, 5' (J. de Souza Aguiar, 20x50 Binoculars);
    18.06, 5.2, 5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1° tail in p.a. 77 deg);
    17.06, 5.1, 5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1° tail in p.a. 76 deg);
    16.44, 5.5, 3' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars);
    15.79, 5.7, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 1.2° tail in p.a. 80 deg);
    15.36, 5.2, 4' (Y. Nagai, 20x100 Binoculars; 1° tail in p.a. 80 deg);
    15.36, 6.2, 4.1' (T. Yusa, 0.05-m Refractor + CCD; 0.5° tail in p.a. 73 deg);
    15.07, 4.9, 5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1° tail in p.a. 75 deg);
    14.03, 4.8, 8' (J. Navarro Pina, Sierra de Carrascoy ( Murcia , Spain ), 20x80 Binoculars);
    13.07, 4.8, 5' (M. Olason, Arizona, 0.05-m Refractor + CCD; 1° tail in p.a. 72 deg);
    12.93, 5.3, 4' (L. Camargo da Silva, São José dos Campos, São Paulo, Brazil, 7x50 Binoculars; 0.1° tail in p.a. 70 deg);
    12.93, 5.2, 5' (W. Souza, Santa Rita do Sapucai -MG, Brazil, 10x50 Binoculars; 0.5° tail in p.a. 70 deg);
    12.77, 5.8, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 1.5° tail in p.a. 70 deg);
    12.75, 5.5, 5' (G. Pappa, Pedara,Sicily,Italy, 12x50 Binoculars; 30' tail);
    12.74, 5.5, 3' (G. Pappa, Pedara,Sicily,Italy, 0.07-m Camera lens + CCD; 30' tail);
    12.67, 5.7, 1.15' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 28' tail in p.a. 74 deg);
    12.67, 5.2, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    12.43, 5.0, 4' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars; 45' tail in p.a. 73 deg);
    11.93, 5.2, 4' (L. Camargo da Silva, São José dos Campos, São Paulo, Brazil, 7x50 Binoculars; 0.1° tail in p.a. 65 deg);
    11.91, 5.0, 6' (J. de Souza Aguiar, 20x50 Binoculars);
    11.77, 5.4, -- (C. Harder, Capricorn Restcamp / Namibia, 12x60 Binoculars; 1.8° tail in p.a. 65 deg);
    11.44, 4.7, 5' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 1° tail in p.a. 70 deg);
    11.43, 4.8, 4' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars; 45' tail in p.a. 73 deg);
    11.37, 4.9, 5' (Y. Nagai, 7x35.0 Binoculars; 0.5° tail in p.a. 70 deg);
    10.99, 4.6, -- (V. Italo, Anniston, AL, 0.008-m Naked eye; 1° tail in p.a. 75 deg);
    10.95, 4.6, -- (M. Goiato, 0.007-m Naked eye);
    10.95, 4.7, 10' (M. Goiato, 7x50 Binoculars; 3° tail in p.a. 75 deg);
    10.94, 5.0, 3' (A. Amorim, 20x50 Binoculars; 0.3° tail in p.a. 80 deg);
    10.91, 4.9, 6' (J. de Souza Aguiar, 20x50 Binoculars);
    10.78, 4.7, 10' (J. Navarro Pina, Puerto de la Cadena ( Murcia , Spain ), 20x80 Binoculars; 1° tail);
    10.76, 4.8, 9.7' (T. Csorgei, Skygems Namibia Remote Observatory (MPC L81), 0.106-m Refractor + CCD; 59.8' tail in p.a. 70 deg);
    10.75, 5.1, 6.5' (S. Getliffe, 7x50 Binoculars; 1.25° tail in p.a. 92 deg);
    10.71, 4.6, -- (W. Hasubick, 10x50 Binoculars; 1.5° tail in p.a. 75 deg);
    10.70, 4.6, 6' (V. Gonano, Udine, Italy, 20x80 Binoculars);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 02.06, 17.6, 0.23' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
nov 23.12, 17.4, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 36 deg);


C/2025 K1-B
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 24.39, 15.6, 0.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 09.94, 13.4, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    09.92, 11.5, 1.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    09.91, 12.2, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.2° tail in p.a. 102 deg);
    09.81, 12.0, 0.5' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian; 3' tail in p.a. 105 deg);
    09.45, 13.8, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 1.6' tail in p.a. 103 deg);
    09.40, 12.3, 1.8' (O. Miyazaki, 0.32-m Newtonian; 5' tail in p.a. 100 deg);
    09.07, 13.9, 1.6' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    07.39, 11.6, 1' (O. Miyazaki, 0.32-m Newtonian; 5' tail in p.a. 115 deg);
    06.50, 13.8, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 6' tail in p.a. 121 deg);
    06.35, 13.1, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 3' tail in p.a. 121 deg);
    05.50, 13.6, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 5' tail in p.a. 124 deg);
    05.50, 13.0, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 7' tail in p.a. 124 deg);
    05.50, 12.2, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 10' tail in p.a. 124 deg);
    04.95, 12.5, 1' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 7.8' tail in p.a. 126 deg);
    04.67, 11.4, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    03.73, 11.5, 2.1' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.23° tail in p.a. 134 deg);
    03.24, 10.9, 3.2' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 25.7' tail in p.a. 138 deg);
    02.77, 12.2, 0.6' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD; 10' tail in p.a. 148 deg);
    02.06, 10.4, 3.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Schmidt-Cassegrain + CCD; 7.6' tail in p.a. 154 deg);
    01.80, 10.7, 3.4' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.41° tail in p.a. 156 deg);
    01.75, 10.4, 5.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.35° tail in p.a. 157 deg);
    01.23, 11.4, 1.1' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 11' tail in p.a. 168 deg);
    01.20, 10.8, 1' (A. Scholten, Eerbeek, 0.2-m Newtonian; 2' tail in p.a. 180 deg);
    01.13, 11.5, 0.6' (C. Harder, Jeersdorf f, 0.349-m Newtonian; 6' tail in p.a. 160 deg);
nov 30.94, 12.4, 0.47' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 8.8' tail in p.a. 174 deg);
    30.90, 12.0, 0.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    30.86, 10.3, 2.1' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    30.54, 12.7, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 10' tail in p.a. 180 deg);
    30.54, 11.7, 0.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 22' tail in p.a. 180 deg);
    30.54, 11.0, 0.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 22' tail in p.a. 180 deg);
    30.16, 10.5, 1' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 7.4' tail in p.a. 191 deg);
    30.02, 12.1, 0.5' (M. Lombardo, Zen Observatory, Scandicci (MPC M26), 0.3-m Ritchey-Chretien + CCD; 4.3' tail in p.a. 191 deg);
    29.62, 12.2, 1.4' (T. Yusa, 0.05-m Refractor + CCD; 9.6' tail in p.a. 197 deg);
    29.56, 12.5, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 195 deg);
    29.56, 11.6, 0.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 22' tail in p.a. 195 deg);
    29.56, 10.7, 0.8' (K. Yoshimoto, 0.3-m Newtonian + CCD; 22' tail in p.a. 195 deg);
    29.39, 11.8, 1.8' (T. Yusa, 0.05-m Refractor + CCD; 7.4' tail in p.a. 199 deg);
    29.10, 11.6, 1.6' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD; 1.1' tail in p.a. 210 deg);
    28.81, 10.0, 2' (R. Aikawa, 0.203-m Schmidt-Cassegrain; 6' tail in p.a. 210 deg);
    28.76, 10.5, 2.4' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Refractor + CCD; 12.3' tail in p.a. 214 deg);
    28.69, 10.6, 1.8' (O. Miyazaki, 0.32-m Newtonian; 8' tail in p.a. 205 deg);
    28.55, 11.0, 1.4' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD; 7.4' tail in p.a. 216 deg);
    28.52, 10.2, 1.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 17' tail in p.a. 217 deg);
    28.52, 10.9, 1.5' (Y. Yamaguchi, 0.13-m Hyperboloid astro-camera + CCD; 10.2' tail in p.a. 215 deg);
    28.52, 12.0, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 17' tail in p.a. 217 deg);
    28.52, 11.0, 1.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 17' tail in p.a. 217 deg);
    28.24, 10.7, 1.6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 20' tail in p.a. 219 deg);
    28.15, 10.9, 5.1' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    28.15, 10.8, 1' (E. Banach, 0.25-m Newtonian; 6' tail in p.a. 230 deg);
    28.14, 11.7, 3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5° tail in p.a. 223 deg);
    28.14, 10.4, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 19.4' tail in p.a. 220 deg);
    28.13, 11.9, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5° tail in p.a. 223 deg);
    27.83, 10.0, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 18.5' tail in p.a. 220 deg);
    27.73, 10.9, 0.8' (W. Hasubick, 0.44-m Newtonian; 0.05° tail in p.a. 240 deg);
    26.91, 10.0, 2' (G. Pappa, Piemonte,Italy (remote control), 0.23-m Newtonian + CCD; 25' tail);
    26.89, 10.0, 1' (J. Warell, Lindby Observstory (K60), Skurup, Sweden, 40x100 Binoculars; 10' tail in p.a. 240 deg);
    26.17, 10.3, 7' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    26.14, 9.5, 3.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 30.6' tail in p.a. 247 deg);
    26.02, 10.2, 2.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 21.5' tail in p.a. 249 deg);
    25.99, 10.0, 1.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 5.6' tail in p.a. 264 deg);
    25.98, 9.7, 2' (G. Pappa, Piemonte,Italy (remote control), 0.23-m Newtonian + CCD; 15' tail);
    25.93, 10.6, 1.7' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD; 8.7' tail in p.a. 253 deg);
    25.79, 10.5, 1.8' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Refractor + CCD; 24.5' tail in p.a. 255 deg);
    25.74, 10.6, 2' (O. Miyazaki, 0.32-m Newtonian; 10' tail in p.a. 260 deg);
    25.73, 10.1, 2.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 16.4' tail in p.a. 255 deg);
    25.22, 9.8, 3.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 26.1' tail in p.a. 261 deg);
    25.21, 10.2, 2.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 18.4' tail in p.a. 263 deg);
    24.39, 12.5, 0.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    23.99, 10.1, 2.1' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 9.6' tail in p.a. 270 deg);
    23.99, 10.2, 1' (E. Banach, 0.25-m Newtonian; 5' tail in p.a. 270 deg);
    23.91, 9.7, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6° tail in p.a. 272 deg);
    23.91, 9.9, 3.9' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 27.1' tail in p.a. 270 deg);
    23.90, 11.0, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 15.9' tail in p.a. 273 deg);
    23.90, 10.7, 4.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7° tail in p.a. 272 deg);
    23.81, 9.6, 3.5' (O. Miyazaki, 0.32-m Newtonian; 16' tail in p.a. 280 deg);
    23.75, 10.9, 1.7' (T. Yusa, 0.05-m Refractor + CCD; 17.2' tail in p.a. 273 deg);
    23.69, 10.4, 2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 30' tail in p.a. 274 deg);
    23.69, 9.7, 2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 30' tail in p.a. 274 deg);
    23.69, 12.0, 0.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 7' tail in p.a. 274 deg);
    23.13, 10.2, 1' (U. Pilz, 0.32-m Newtonian; 0.07° tail in p.a. 290 deg);
    23.08, 9.4, 7.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.01° tail in p.a. 275 deg);
    23.02, 9.6, 2.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD; 23.8' tail in p.a. 277 deg);
    22.95, 9.9, -- (S. Purabiya, Ahmedabad, India, 0.153-m Ritchey-Chretien + CCD);
    22.95, 10.0, 3.4' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Refractor + CCD; 23.6' tail in p.a. 279 deg);
    22.83, 11.0, 1' (A. Scholten, Eerbeek, 0.2-m Newtonian; 0.07° tail in p.a. 280 deg);
    22.58, 11.5, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 18.2' tail in p.a. 278 deg);
    22.21, 9.8, 2.5' (C. Labordena, Benlloch, 0.2-m Schmidt-Cassegrain; 20' tail);
    22.20, 10.3, 1' (A. Scholten, Eerbeek, 0.2-m Newtonian; 0.1° tail in p.a. 275 deg);
    22.20, 10.3, 0.9' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian; 11' tail in p.a. 280 deg);
    22.19, 10.8, 1' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    22.18, 10.1, 2' (M. Meyer, 0.152-m Refractor; 0.2° tail in p.a. 295 deg);
    22.18, 10.1, 8.3' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    22.16, 10.4, 5.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 30.8' tail in p.a. 279 deg);
    22.07, 9.4, 9.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.49° tail in p.a. 280 deg);
    21.85, 9.6, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 20' tail in p.a. 283 deg);
    21.84, 11.6, 0.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 10' tail in p.a. 283 deg);
    21.84, 10.2, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 20' tail in p.a. 283 deg);
    21.81, 10.3, 3' (O. Miyazaki, 0.32-m Newtonian; 14' tail in p.a. 285 deg);
    21.18, 10.0, 2.5' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian; 12' tail in p.a. 290 deg);
    21.16, 10.1, 2.2' (W. Kutschera, 0.25-m Newtonian; 0.21° tail);
    21.10, 10.8, -- (C. Harder, Capricorn Restcamp / Namibia, 0.221-m Newtonian; 9.5' tail in p.a. 290 deg);
    21.07, 11.8, 1.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 16.1' tail in p.a. 286 deg);
    20.79, 9.8, 2' (O. Miyazaki, 0.32-m Newtonian; 12' tail in p.a. 300 deg);
    20.79, 9.8, 2.5' (S. Yoshida, 0.4-m Newtonian; 9' tail in p.a. 295 deg);
    20.21, 10.5, 2.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 6.2' tail in p.a. 287 deg);
    20.21, 10.8, 4.9' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    20.20, 9.8, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian; 0.1° tail in p.a. 295 deg);
    20.10, 10.5, 1' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 7' tail in p.a. 295 deg);
    19.79, 10.1, 3' (O. Miyazaki, 0.32-m Newtonian; 16' tail in p.a. 295 deg);
    19.20, 10.0, 1.2' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian; 10' tail in p.a. 295 deg);
    19.20, 9.7, 10.6' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD; 1.2° tail in p.a. 290 deg);
    19.20, 9.3, 10.6' (M. Mašek, CTA-N La Palma, 0.067-m Camera lens + CCD; 0.9° tail in p.a. 289 deg);
    19.15, 9.4, 3' (P. Guzik, 25x100 Binoculars; 0.4° tail in p.a. 300 deg);
    19.15, 9.7, 0.9' (W. Hasubick, 0.44-m Newtonian; 0.26° tail in p.a. 285 deg);
    19.13, 9.8, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars; 0.3° tail in p.a. 300 deg);
    19.13, 9.2, 1.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 28' tail in p.a. 285 deg);
    19.11, 11.1, 0.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 6.5' tail in p.a. 290 deg);
    19.08, 10.0, 1' (E. Banach, 0.25-m Newtonian; 8' tail in p.a. 300 deg);
    18.97, 9.8, 4.2' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 39.2' tail in p.a. 289 deg);
    18.82, 9.4, 2' (R. Aikawa, 0.203-m Schmidt-Cassegrain; 8' tail in p.a. 290 deg);
    18.51, 9.8, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 30' tail in p.a. 291 deg);
    18.38, 9.9, 3.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 40.8' tail in p.a. 290 deg);
    18.37, 10.1, 3.7' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 22.3' tail in p.a. 291 deg);
    18.21, 10.9, 1.5' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    18.17, 9.5, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6° tail in p.a. 292 deg);
    18.17, 10.4, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8° tail in p.a. 292 deg);
    18.16, 10.4, 4.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.5° tail in p.a. 292 deg);
    18.13, 10.2, 2.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD; 0.46° tail in p.a. 292 deg);
    18.06, 9.6, 2.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.4° tail in p.a. 290 deg);
    18.04, 9.8, 2' (G. Pappa, Piemonte,Italy (remote control), 0.23-m Newtonian + CCD; 20' tail);
    17.83, 9.3, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 294 deg);
    17.83, 10.1, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 294 deg);
    17.83, 11.8, 1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 294 deg);
    17.50, 10.1, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 34' tail in p.a. 293 deg);
    17.46, 9.9, 3.2' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 19.8' tail in p.a. 292 deg);
    17.45, 9.5, 3.9' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 44.3' tail in p.a. 291 deg);
    17.24, 10.1, 2.63' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    17.17, 9.5, 1.5' (M. Meyer, 0.152-m Refractor; 0.25° tail in p.a. 290 deg);
    17.12, 9.6, 4' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars; 15' tail in p.a. 300 deg);
    17.11, 11.0, 0.6' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 6' tail in p.a. 300 deg);
    16.70, 11.1, 1.7' (T. Yusa, 0.05-m Refractor + CCD; 9.7' tail in p.a. 295 deg);
    16.54, , -- (R. Saikali, Denver, 0.3-m Newtonian + CCD);
    16.40, 9.8, 3.2' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 12.9' tail in p.a. 293 deg);
    16.17, 9.7, 3' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD; 20' tail);
    16.10, 10.7, 0.8' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 9' tail in p.a. 280 deg);
    16.05, 10.9, 0.7' (A. Haji, Al-Fulaij Observatory, Oman (MPC C97), 0.61-m "for observations with the largest telescopes" + CCD);
    15.84, 8.4, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 296 deg);
    15.84, 9.3, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 296 deg);
    15.84, 11.1, 1.2' (K. Yoshimoto, 0.3-m Newtonian + CCD; 12' tail in p.a. 296 deg);
    15.51, 9.7, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 22' tail in p.a. 296 deg);
    15.45, 9.6, 4' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 39.8' tail in p.a. 296 deg);
    14.48, 9.3, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 27' tail in p.a. 295 deg);
    14.38, 9.6, 3.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 35.1' tail in p.a. 295 deg);
    14.37, 9.5, 3.2' (T. Csorgei, Chopin Observatory (MPC 247), 0.08-m Refractor + CCD; 11.6' tail in p.a. 296 deg);
    14.10, 10.0, 0.7' (B. Granslo, Bjerke, Oslo, Norway, 0.15-m Newtonian);
    14.02, 9.2, 0.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 23' tail in p.a. 290 deg);
    13.83, 9.3, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 297 deg);
    13.83, 8.6, 3.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 35' tail in p.a. 297 deg);
    13.82, 10.6, 1.5' (K. Yoshimoto, 0.3-m Newtonian + CCD; 15' tail in p.a. 297 deg);
    13.81, 9.5, 0.6' (O. Miyazaki, 0.32-m Newtonian; 17' tail in p.a. 300 deg);
    13.53, 9.5, 3' (M. Olason, Arizona, 0.05-m Refractor + CCD; 10' tail in p.a. 294 deg);
    13.38, 9.9, 2.2' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 23.6' tail in p.a. 295 deg);
    13.20, 10.4, 1.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    13.11, 11.0, 0.6' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian; 5.5' tail in p.a. 290 deg);
    13.11, 10.6, 2.6' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD; 22' tail in p.a. 295 deg);
    12.38, 10.2, 2.5' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 22.1' tail in p.a. 294 deg);
    12.31, 10.6, -- (L. Bracero, Ponce, 0.3-m "small telescopes and finders" with aperture not exceeding 4 inches + CCD);
    12.30, 10.0, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    12.18, 10.3, 1' (A. Kammerer, Voelkersbach, Germany, 0.397-m Newtonian; 6' tail in p.a. 305 deg);
    11.79, 10.5, 1.4' (O. Miyazaki, 0.32-m Newtonian; 15' tail in p.a. 310 deg);
    11.39, 10.1, 2.8' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD; 34.1' tail in p.a. 297 deg);
    11.30, 10.0, 2.5' (J. de Souza Aguiar, 0.27-m Newtonian);
    11.12, 10.5, 1.5' (T. Csorgei, Tecnosky Astropark, Felizzano (MPC D38), 0.23-m Newtonian + CCD; 25.4' tail in p.a. 297 deg);
    10.83, 11.0, 1.1' (K. Yoshimoto, 0.3-m Newtonian + CCD; 15' tail in p.a. 296 deg);
    10.83, 9.2, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 38' tail in p.a. 296 deg);
    10.83, 10.0, 2.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 38' tail in p.a. 296 deg);
    10.80, 10.6, 1.1' (O. Miyazaki, 0.32-m Newtonian; 4.5' tail in p.a. 290 deg);


C/2025 K1-C
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 24.39, 12.9, 0.2' (M. Olason, Arizona, 0.05-m Refractor + CCD);


C/2025 N1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 06.18, 11.6, 0.8' (M. Lombardo, Zen Observatory, Scandicci (MPC M26), 0.3-m Ritchey-Chretien + CCD);
    02.07, 12.2, 0.31' (A. Haji, Al-Fulaij Observatory, Oman (MPC C97), 0.61-m "for observations with the largest telescopes" + CCD);


C/2025 Q3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 23.94, 16.2, 0.7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    23.78, 16.0, 0.47' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD; 11.8" tail in p.a. 224 deg);
    17.89, 16.2, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    14.53, 16.8, 0.4' (K. Yoshimoto, 0.3-m Newtonian + CCD);


C/2025 R2 (SWAN)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 10.07, 12.6, 3.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.51, 12.3, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    09.42, 12.5, 2.6' (T. Yusa, 0.05-m Refractor + CCD);
    09.41, 13.7, 1.3' (O. Miyazaki, 0.32-m Newtonian);
    09.05, 13.7, 1.6' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    08.51, 11.9, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    07.51, 12.3, 3.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    07.41, 12.3, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    06.90, 13.1, 1.7' (R. Hill, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.51, 11.9, 3.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD; 4.4' tail in p.a. 233 deg);
    06.45, 12.0, 3.5' (T. Yusa, 0.05-m Refractor + CCD);
    05.51, 11.8, 3.2' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    04.86, 12.5, 2.2' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 0.7' tail in p.a. 69 deg);
    04.51, 11.7, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    02.71, 11.4, 5.6' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
nov 30.80, 15.3, 0.4' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD);
    29.51, 11.3, 3.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    28.51, 11.0, 3' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    28.40, 11.3, 2.8' (O. Miyazaki, 0.32-m Newtonian);
    27.85, 11.5, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    27.79, 11.1, 4' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 0.6' tail in p.a. 68 deg);
    27.51, 11.2, 3.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    25.14, 12.4, 2' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    25.13, 11.6, 4' (S. Aguirre, Real del Molinito , Hermosillo, Sonora, Mexico, 0.15-m Schmidt-Cassegrain);
    24.40, 12.5, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    23.87, 10.7, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2' tail in p.a. 70 deg);
    23.86, 10.6, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 68 deg);
    23.86, 11.6, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 72 deg);
    23.79, 10.5, 4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    23.72, 10.8, 4.5' (M. Šrejber, Hvezdarna a planetarium Hradec Kralove (MPC 048), 0.25-m Newtonian + CCD);
    23.71, [10.1, 5' (M. Biely, 20x80 Binoculars);
    23.71, 11.0, 3.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    23.51, 10.7, 5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    22.93, 9.8, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    22.83, 9.9, 14' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.47° tail in p.a. 235 deg);
    22.82, 10.4, 4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    22.78, 11.1, 4.6' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.52, 13.0, 2.2' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    22.41, 10.8, 3.4' (T. Yusa, 0.05-m Refractor + CCD);
    21.92, 9.8, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    21.90, 9.8, 13' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.56° tail in p.a. 236 deg);
    21.86, 10.7, 3' (V. Díaz, La Romana, Alicante, Spain, 0.2-m Newtonian);
    21.84, 10.6, 4.32' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    21.81, 10.2, 5.8' (H. Meyerdierks, Osterholz-Scharmbeck; anti-tail 5.3 arcmin to 235 deg, 0.08-m Refractor + CCD; 2.5' tail in p.a. 72 deg);
    21.80, 10.4, 4' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    21.79, 10.5, 2.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    21.76, 10.4, 3' (C. Labordena, Benlloch, 0.2-m Schmidt-Cassegrain);
    21.76, 10.8, 3.5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    21.75, 10.5, 3' (J. Shanklin, 0.3-m Refractor);
    21.75, 11.9, 2.1' (C. Ratinaud, Landehen, 0.25-m Newtonian + CCD; 1.1' tail in p.a. 73 deg);
    21.73, 10.2, 4.5' (M. Meyer, 0.152-m Refractor);
    21.39, 11.1, 2.4' (O. Miyazaki, 0.32-m Newtonian);
    20.93, 9.7, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    20.86, 10.7, 4.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 76 deg);
    20.83, 10.3, 4.5' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    20.83, 10.3, 7.1' (W. Kutschera, 0.25-m Newtonian);
    20.81, 10.5, 5.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    20.79, 10.8, 4.4' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD; 0.6' tail in p.a. 73 deg);
    20.50, 10.5, 5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    20.46, 9.9, 5' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars);
    20.41, 11.4, 1.5' (Y. Nagai, 0.044-m Camera lens + CCD);
    20.39, 11.5, 2.2' (O. Miyazaki, 0.32-m Newtonian);
    20.11, 10.5, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD; 6' tail in p.a. 68 deg);
    19.93, 9.7, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    19.88, 10.8, 2.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    19.83, 9.8, 6' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    19.82, 9.4, 8' (C. Harder, Capricorn Restcamp / Namibia, 0.128-m Newtonian);
    19.79, 10.5, 4' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD; 1.3' tail in p.a. 76 deg);
    19.71, 10.5, 4' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    19.50, 10.3, 5.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    18.92, 9.6, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    18.88, 10.2, 3.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    18.88, 9.3, 8' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    18.85, 9.3, 9.5' (M. Biely, 20x80 Binoculars);
    18.78, 9.3, 6' (A. Kammerer, Voelkersbach, Germany, 0.397-m Newtonian);
    18.73, 10.6, 1.7' (W. Hasubick, 0.44-m Newtonian);
    18.73, 9.4, 8' (M. Meyer, 0.152-m Refractor);
    18.71, 10.8, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.3' tail in p.a. 234 deg);
    18.71, 10.0, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.9' tail in p.a. 236 deg);
    18.70, 10.6, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.5' tail in p.a. 72 deg);
    18.69, 11.3, 2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    18.56, 10.4, 3' (R. Aikawa, 0.203-m Schmidt-Cassegrain);
    18.50, 10.2, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    17.98, 10.3, 4.3' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Newtonian + CCD; 0.9' tail in p.a. 70 deg);
    17.97, 12.5, 0.8' (R. Arnold, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.5° tail in p.a. 78 deg);
    17.96, 9.8, 6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 7' tail in p.a. 74 deg);
    17.91, 9.5, 7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    17.89, 10.4, 6' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    17.87, 10.1, 7.3' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    17.84, 9.7, 9.8' (H. Meyerdierks, Osterholz-Scharmbeck; anti-tail 4.4m to 240, 0.08-m Refractor + CCD; 4.8' tail in p.a. 78 deg);
    17.80, 9.9, 5.83' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    17.77, 10.4, 3.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    17.74, 9.3, 10' (M. Meyer, 0.152-m Refractor);
    16.89, 9.9, 6' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    16.49, 10.0, 5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.89, 9.4, 10' (M. Meyer, 0.152-m Refractor);
    15.83, 9.6, 6.5' (C. Harder, Capricorn Restcamp / Namibia, 0.128-m Newtonian);
    15.82, 9.5, 6' (C. Harder, Capricorn Restcamp / Namibia, 0.508-m Newtonian);
    15.72, 12.6, 1' (S. Shurpakov, 0.41-m Newtonian + CCD; 1' tail in p.a. 74 deg);
    15.69, 10.0, 4' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    15.57, 12.9, 0.6' (T. Thaluang, Akin Observatory, Rayong (MPC O51), 0.26-m Cassegrain reflector + CCD);
    15.54, 10.4, 4.1' (T. Yusa, 0.05-m Refractor + CCD);
    15.49, 9.9, 5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    15.40, 10.2, 3.8' (Y. Nagai, 0.044-m Camera lens + CCD);
    15.40, 10.7, 4.4' (O. Miyazaki, 0.32-m Newtonian);
    15.22, 10.2, 6' (M. Olason, Arizona, 0.05-m Refractor + CCD; 4' tail in p.a. 73 deg);
    14.49, 9.9, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    14.38, 10.1, 4.9' (T. Yusa, 0.05-m Refractor + CCD);
    13.83, 9.0, 5' (M. Filipek, Jerzmanowice, 0.25-m Newtonian);
    13.76, 9.0, 6' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    13.70, 11.3, 2.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.52, 9.5, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    13.10, 9.7, 1.6' (S. Aguirre, Real del Molinito, Hillo, Son, Mex., 0.15-m Schmidt-Cassegrain);
    13.09, 10.9, 0.9' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    13.06, 9.8, 6' (M. Olason, Arizona, 0.05-m Refractor + CCD; 6' tail in p.a. 74 deg);
    12.82, 8.6, 5' (C. Harder, Capricorn Restcamp / Namibia, 0.128-m Newtonian);
    12.76, 9.1, 1.1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    12.75, 9.1, 6' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    12.75, 8.6, 7' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    12.49, 9.6, 6' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    12.45, 8.9, 6' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars);
    12.41, 9.1, 6' (O. Miyazaki, 18x50 Binoculars);
    12.40, 10.4, 3.4' (T. Yusa, 0.05-m Refractor + CCD);
    11.92, 8.9, 2' (J. de Souza Aguiar, 11x80 Binoculars);
    11.90, 9.7, 10' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.7' tail in p.a. 73 deg);
    11.90, 9.4, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.3' tail in p.a. 71 deg);
    11.89, 10.1, 8.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.2' tail in p.a. 74 deg);
    11.82, 8.3, 5.5' (C. Harder, Capricorn Restcamp / Namibia, 0.221-m Newtonian);
    11.82, 8.2, 8' (G. Scheerle, 9x63.0 Binoculars);
    11.81, 8.9, 6.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 75 deg);
    11.79, 8.9, 13' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.18° tail in p.a. 77 deg);
    11.78, 9.0, 7' (A. Kammerer, Voelkersbach, Germany, 9x63.0 Binoculars);
    11.75, 8.6, 5' (G. Scheerle, 9x63.0 Binoculars);
    11.74, 9.0, 6' (M. Meyer, 0.152-m Refractor);
    11.49, 9.4, 6.5' (A. Pearce, Nedlands, Perth, 0.05-m Refractor + CCD);
    11.45, 8.7, 7' (M. Mattiazzo, Lake Boga, Victoria, Australia, 15x70 Binoculars);
    11.42, 8.7, 8.4' (K. Yoshimoto, 0.3-m Newtonian + CCD; 5' tail in p.a. 72 deg);
    10.92, 8.7, 2' (J. de Souza Aguiar, 11x80 Binoculars);
    10.85, 8.7, 5' (J. Shanklin, 25x100 Binoculars);
    10.80, 9.3, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    10.75, 9.3, 3' (U. Pilz, 0.12-m Refractor);
    10.70, 11.4, 4' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD; 1' tail in p.a. 69 deg);
    10.67, 9.2, 7.4' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);


C/2025 R3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.82, 18.1, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.3' tail in p.a. 98 deg);
    18.76, 18.6, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.43, 17.7, 0.2' (K. Yoshimoto, 0.3-m Newtonian + CCD);


C/2025 T1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 10.07, 9.5, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    09.75, 9.4, 2' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian);
    09.40, 10.2, 3.8' (T. Yusa, 0.05-m Refractor + CCD);
    09.38, 9.7, 2' (O. Miyazaki, 0.32-m Newtonian);
    09.06, 11.4, 1.2' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    08.38, 9.6, 2.3' (O. Miyazaki, 0.32-m Newtonian);
    07.76, 10.0, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    07.38, 9.9, 1.3' (Y. Nagai, 0.044-m Camera lens + CCD);
    07.37, 10.0, 2.6' (O. Miyazaki, 0.32-m Newtonian);
    07.07, 8.8, 3' (C. Hergenrother, Tanque Verde, Tucson, Arizona, 30x125.0 Binoculars);
    03.73, 9.1, 4' (D. Vansteelant, Bruges, 0.3-m Newtonian);
    03.70, 9.7, 4.7' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    02.76, 9.5, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    02.05, 9.5, 4.4' (A. Pearce, Skygems Chopin Observatory TX USA, 0.08-m Refractor + CCD);
    01.78, 9.4, 4.1' (W. Kutschera, 0.508-m Newtonian);
    01.72, 9.2, 10' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.26° tail in p.a. 39 deg);
nov 30.82, 9.0, 2.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    30.74, 9.3, 3.5' (J. Shanklin, 0.2-m Refractor);
    30.71, 9.2, 7.3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 2.4' tail in p.a. 34 deg);
    30.38, 10.0, 2' (O. Miyazaki, 0.32-m Newtonian);
    29.82, 8.9, 3' (B. Granslo, Hakadal, Norway, 0.08-m Refractor);
    28.80, 8.7, 3.2' (S. Getliffe, 7x50 Binoculars);
    28.74, 9.3, 4.6' (T. Csorgei, Astrotale, Italy (MPC 247), 0.14-m Refractor + CCD);
    28.73, 9.3, 3.5' (A. Pearce, Skygems Observatory, Moccagatta, Italy, 0.14-m Refractor + CCD);
    28.73, 8.8, 4' (D. Vansteelant, Bruges, 0.3-m Newtonian);
    28.38, 9.7, 2.4' (O. Miyazaki, 0.32-m Newtonian);
    27.82, 9.7, 2.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    26.73, 9.1, 3' (D. Vansteelant, Bruges, 0.3-m Newtonian);
    26.39, 9.4, 2.5' (O. Miyazaki, 0.32-m Newtonian);
    25.78, 9.7, 2.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    25.76, 8.8, 3' (D. Vansteelant, Bruges, 0.3-m Newtonian);
    25.10, 9.0, 2' (C. Hergenrother, Tanque Verde, Tucson, Arizona, 30x125.0 Binoculars);
    25.09, 9.4, 3.6' (S. Aguirre, Real del Molinito, Hermosillo, Sonora , Mexico, 0.15-m Schmidt-Cassegrain);
    25.09, 10.4, 1.03' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    24.39, 9.2, 2.6' (O. Miyazaki, 0.32-m Newtonian);
    23.87, 9.1, 3.3' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    23.84, 10.0, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.3' tail in p.a. 34 deg);
    23.84, 9.2, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    23.83, 10.1, 6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 34 deg);
    23.78, 9.0, 3' (J. Shanklin, 25x100 Binoculars);
    23.77, 9.4, 4.2' (S. Getliffe, 7x50 Binoculars);
    23.73, 9.5, 2.3' (J. Shanklin, 0.3-m Refractor);
    23.71, 9.4, 4.6' (M. Biely, 20x80 Binoculars);
    23.68, 9.3, 4.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    22.81, 8.8, 6' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    22.76, 9.0, 11' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.09° tail in p.a. 31 deg);
    22.72, 9.0, 3.5' (E. Banach, 0.25-m Newtonian);
    21.81, 9.3, 4' (V. Díaz, La Romana, Alicante, Spain, 0.2-m Newtonian);
    21.78, 9.6, 3.5' (J. Shanklin, 25x100 Binoculars);
    21.78, 9.5, 2.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 4.9' tail in p.a. 103 deg);
    21.76, 9.0, 6.7' (H. Meyerdierks, Osterholz-Scharmbeck, 0.08-m Refractor + CCD; 3.7' tail in p.a. 34 deg);
    21.75, 9.3, 3' (C. Labordena, Benlloch, 0.2-m Schmidt-Cassegrain);
    21.75, 9.0, 13' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    21.74, 9.6, 3.5' (J. Shanklin, 0.3-m Refractor);
    21.73, 9.0, 5' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    21.72, 8.8, 6' (M. Meyer, 0.152-m Refractor);
    21.38, 10.1, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    20.81, 9.9, 3' (H. Meyerdierks, Osterholz-Scharmbeck, 0.2-m Schmidt-Cassegrain + CCD);
    20.80, 9.3, 6' (D. Heggie, Forthimage, Edinburgh, 0.25-m Newtonian + CCD; 0.7' tail in p.a. 33 deg);
    20.77, 9.1, 4.5' (W. Kutschera, 0.25-m Newtonian);
    20.40, 9.4, 4.6' (K. Yoshimoto, 0.3-m Newtonian + CCD; 2' tail in p.a. 28 deg);
    20.39, 9.8, 1.6' (Y. Nagai, 0.044-m Camera lens + CCD);
    20.38, 9.5, 2.7' (O. Miyazaki, 0.32-m Newtonian);
    20.10, 9.6, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    19.87, 9.3, 3.7' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    19.73, 9.0, 3' (M. Paradowski, 0.075-m Refractor + CCD);
    19.71, 9.3, 3' (M. Paradowski, 0.075-m Refractor + CCD);
    19.70, 9.0, 4.1' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    18.85, [9.7, 4' (M. Biely, 20x80 Binoculars);
    18.83, 9.5, 3.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    18.76, 9.0, 3' (A. Kammerer, Voelkersbach, Germany, 0.397-m Newtonian);
    18.73, 9.7, 2.1' (W. Hasubick, 0.44-m Newtonian);
    18.72, 9.1, 5' (M. Meyer, 0.152-m Refractor);
    18.70, 10.9, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.6' tail in p.a. 31 deg);
    18.69, 9.3, 8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.7' tail in p.a. 31 deg);
    18.69, 10.4, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 11.3' tail in p.a. 31 deg);
    18.40, 9.2, 4' (K. Yoshimoto, 20x100 Binoculars);
    17.82, 9.6, 6.2' (M. Mašek, La Palma (MPC 950), 0.07-m Camera lens + CCD);
    17.74, 9.6, 4.4' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    17.73, 9.1, 5.5' (M. Meyer, 0.152-m Refractor);
    16.90, 9.3, 4' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    16.72, 9.4, 5' (B. Granslo, Hakadal, Norway, 0.08-m Refractor);
    16.52, 10.6, 3.6' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD);
    15.79, 11.3, 1.12' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.5' tail in p.a. 26 deg);
    15.67, 9.7, 3.2' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    15.39, 9.7, 2' (O. Miyazaki, 0.32-m Newtonian);
    15.39, 9.7, 3' (Y. Nagai, 0.044-m Camera lens + CCD);
    15.08, 9.6, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    14.52, 11.8, 3.5' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD);
    14.41, 9.5, 4.5' (K. Yoshimoto, 0.065-m Camera lens + CCD);
    14.17, 9.2, 4' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    14.05, 9.7, 2.1' (D. Zubenel, De Soto, Kansas., 0.15-m Newtonian);
    13.71, 10.2, 2.6' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    13.07, 10.8, 2.2' (S. Aguirre, Real del Molinito, Hillo, Son, Mex, 0.15-m Schmidt-Cassegrain);
    13.07, 9.6, 4' (M. Olason, Arizona, 0.05-m Refractor + CCD);
    13.06, 10.1, 1' (S. Aguirre, Real del Molinito, Son., 0.05-m Refractor + CCD);
    12.85, 9.9, 2' (A. Scholten, Bussloo, 0.356-m Schmidt-Cassegrain);
    12.72, 10.3, 2.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD);
    12.38, 9.3, 3.6' (O. Miyazaki, 0.32-m Newtonian);
    11.80, 9.6, 4.6' (A. Kammerer, Voelkersbach, Germany, 0.397-m Newtonian);
    11.76, 10.9, 6.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7.7' tail in p.a. 16 deg);
    11.76, 11.5, 5.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.1' tail in p.a. 16 deg);
    11.76, 9.8, 7.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 15 deg);
    11.73, 9.5, 4.5' (M. Meyer, 0.152-m Refractor);
    11.71, 10.1, 5' (H. Meyerdierks, Osterholz-Scharmbeck, 0.05-m Refractor + CCD);
    10.82, 11.0, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    10.73, 10.2, 3' (U. Pilz, 0.12-m Refractor);
    10.70, 10.0, 4.9' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    10.68, 11.6, 2' (A. Baskikh, Новосибирск, 0.05-m Refractor + CCD);


C/2025 V1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
dec 02.08, 14.5, 0.5' (M. Olason, Arizona, 0.05-m Refractor + CCD);
nov 25.06, 13.9, 1' (M. Olason, Arizona, 0.05-m Refractor + CCD);


A/2025 S2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
nov 21.44, 18.8, -- (K. Yoshimoto, 0.3-m Newtonian + CCD);
    11.47, 18.0, -- (K. Yoshimoto, 0.3-m Newtonian + CCD);