2P/Encke
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.92, 18.4, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.94, 18.3, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.07, 18.0, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD);
    19.33, 17.9, 0.35' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
    18.86, 17.0, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.85, 17.3, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    16.96, 18.1, 0.24' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    16.94, 18.3, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.98, 17.9, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    15.91, 18.4, 0.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    12.03, 18.6, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.09, 18.6, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    05.91, 19.2, 0.15' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.07, 19.0, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


10P/Tempel
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.57, 9.8, 6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    22.21, 9.3, 8' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
    21.69, 9.0, 6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    21.58, 9.4, 7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.58, 9.4, 8' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    20.63, 9.1, 6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    20.59, 9.4, 7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    19.27, 9.2, 8' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
    17.61, 9.1, 9' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.53, 8.9, 8.6' (Y. Nagai, 0.05-m Refractor + CCD);
    16.68, 9.0, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.61, 9.1, 10' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    16.59, 9.0, 9' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.29, 8.9, 9' (M. Olason, Tucson Arizona, 0.03-m Refractor + CCD);
    16.29, 9.4, 6.4' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    15.59, 9.1, 9' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.97, 9.4, 7.1' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.59, 9.0, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.26, 9.2, 5.9' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    13.52, 8.4, 21.3' (R. Ramlow, Q62, 0.106-m Refractor + CCD);
    12.59, 9.0, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    11.28, 8.9, 5.3' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    11.04, 8.9, 4.2' (T. Yusa, 0.05-m Refractor + CCD);
    10.64, 9.5, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.59, 8.8, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.51, 8.3, 20.8' (R. Ramlow, Q62, 0.106-m Refractor + CCD; 27' tail in p.a. 38 deg);
    10.29, 9.0, 5.6' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    09.66, 9.3, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.59, 8.5, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    09.29, 8.8, 10' (M. Olason, Tucson Arizona, 0.03-m Refractor + CCD);
    08.66, 9.3, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.59, 8.7, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    07.92, 7.7, 15' (J. Gonzalez Suarez, 10x50 Binoculars);
    07.67, 9.3, 10' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.59, 8.7, 10' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    07.31, 8.2, 8.6' (N. Paul, Chile , La Dehesa (MPC W88), 0.43-m Cassegrain reflector + CCD);
    06.61, 8.2, 10' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    06.55, 8.5, 10' (A. Pearce, Dowerin, W. Australia, 20x80 Binoculars);
    06.55, 7.9, 14' (A. Pearce, Dowerin, W. Australia, 0.06-m Refractor + CCD);
    05.61, 8.4, 13' (A. Pearce, Dowerin, W. Australia, 0.05-m Refractor + CCD);
    05.59, 8.4, 12' (A. Pearce, Dowerin, W. Australia, 0.06-m Refractor + CCD);
    05.59, 8.5, 10' (A. Pearce, Dowerin, W. Australia, 20x80 Binoculars);
    05.30, 8.6, 12' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
    05.25, 8.3, 7.7' (N. Paul, Chile, La Dehesa (MPC W88), 0.43-m Cassegrain reflector + CCD);
    04.59, 8.5, 13' (A. Pearce, Koorda, W. Australia, 0.05-m Refractor + CCD);
    04.58, 8.5, 11' (A. Pearce, Koorda, W.Australia, 0.06-m Refractor + CCD);
    04.57, 7.6, 16' (C. Wyatt, 0.05-m Refractor);
    04.01, 11.9, 2.1' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    03.86, 8.6, 20' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 2° tail in p.a. 258 deg);
    03.50, 7.9, 21.9' (R. Ramlow, Q62, 0.106-m Refractor + CCD; 23' tail in p.a. 359 deg);
    02.97, 8.2, 5.6' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    01.59, 7.9, 8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.06, 7.8, 22.5' (R. Ramlow, X07, 0.135-m Camera lens + CCD; 30' tail in p.a. 352 deg);
aug 31.41, 7.3, 13' (C. Wyatt, 0.05-m Refractor);
    31.26, 8.3, 10' (M. Olason, Tucson Arizona, 0.03-m Refractor + CCD);
    30.98, 8.1, 8' (M. Goiato, 20x100 Binoculars);
    30.55, 8.6, 9' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    30.55, 8.4, 7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    28.17, 8.2, 8' (M. Goiato, 0.22-m Newtonian);


11P/Tempel-Swift-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.93, 17.8, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.93, 17.9, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.05, 18.1, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD);
    19.31, 17.8, 0.23' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
    18.90, 18.3, 0.22' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    17.02, 18.4, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.93, 18.1, 0.26' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    15.83, 18.7, 0.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    14.94, 18.2, 0.21' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD);
    12.86, 18.9, 0.22' (S. Shurpakov, 0.41-m Newtonian + CCD);
    12.05, 18.0, 0.37' (P. Dekelver, 0.3-m Newtonian + CCD);
    12.04, 18.7, 0.16' (S. Shurpakov, 0.41-m Newtonian + CCD);
    11.17, 18.8, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    09.24, 18.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD);
    09.03, 18.6, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.91, 18.8, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.95, 18.2, 0.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    05.41, 18.2, 0.2' (K. Yoshimoto, 0.51-m Newtonian + CCD);
    05.13, 19.2, 0.15' (P. Dekelver, 0.3-m Newtonian + CCD);
    03.97, 19.1, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


14P/Wolf
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 20.00, 17.7, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD);
    18.96, 18.6, 0.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    16.87, 18.5, 0.18' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    15.88, 18.6, 0.19' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);


31P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.05, 20.4, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.07, 19.3, 6.3' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 11.18, 20.2, 0.11' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 17.05, 19.0, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    16.79, 17.9, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    11.19, 19.0, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    10.66, 18.5, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.69, 18.2, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.20, 18.4, 1' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD; 45" tail in p.a. 260 deg);
    08.66, 18.0, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    04.00, 19.3, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.08, 14.7, 0.6' (M. Meyer, 0.05-m Refractor + CCD; 0.7' tail in p.a. 274 deg);
    23.03, 15.0, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 1.4' tail in p.a. 273 deg);
    22.76, 14.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    21.77, 13.9, 0.6' (Y. Nagai, 0.05-m Refractor + CCD);
    21.06, 15.5, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD; 1.1' tail in p.a. 273 deg);
    17.20, 14.7, 0.6' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.04, 14.9, 0.37' (P. Dekelver, 0.3-m Newtonian + CCD; 1' tail in p.a. 273 deg);
    11.49, 14.4, 0.7' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 279 deg);
    11.47, 14.1, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 273 deg);
    11.20, 14.8, 0.45' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    02.11, 13.6, 2.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 273 deg);
    01.45, 14.2, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);


84P/Giclas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 10.50, 17.2, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.53, 17.1, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.50, 17.3, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.65, 17.5, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    01.53, 17.4, 0.3' (K. Yoshimoto, 0.3-m Newtonian + CCD; 0.3' tail in p.a. 65 deg);
aug 28.52, 17.0, 0.3' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


88P/Howell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.00, 14.3, 1.1' (M. Meyer, 0.05-m Refractor + CCD; 0.8' tail in p.a. 262 deg);
    22.91, 15.7, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.69, 14.8, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    21.81, 15.2, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.77, 14.8, 0.6' (Y. Nagai, 0.05-m Refractor + CCD);
    21.72, 14.7, 1' (A. Pearce, Perth Observatory, Bickley (MPC 323), 0.35-m Schmidt-Cassegrain + CCD);
    21.03, 15.2, 0.6' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.98, 14.9, 1.3' (P. Dekelver, 0.3-m Newtonian + CCD; 6' tail in p.a. 258 deg);
    20.81, 15.2, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.97, 15.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.8' tail in p.a. 255 deg);
    17.96, 15.3, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 7' tail in p.a. 253 deg);
    17.96, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 252 deg);
    17.56, 14.6, 0.7' (Y. Nagai, 0.05-m Refractor + CCD);
    16.99, 14.9, 1' (P. Dekelver, 0.3-m Newtonian + CCD; 10.1' tail in p.a. 252 deg);
    16.96, 14.0, 1.7' (M. Meyer, 0.05-m Refractor + CCD; 3.2' tail in p.a. 257 deg);
    16.94, 14.9, 0.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.75, 14.1, 1.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 6.1' tail in p.a. 254 deg);
    16.11, 14.3, 1' (W. Kutschera, 0.508-m Newtonian + CCD; 0.03° tail);
    16.00, 14.9, 0.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    15.81, 15.0, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.13, 14.0, 1.4' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    15.05, 15.0, 0.7' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.64, 15.0, 0.6' (Y. Yamaguchi, 0.08-m Refractor + CCD);
    13.09, 16.0, 0.47' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.4' tail in p.a. 254 deg);
    12.09, 15.9, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.46, 14.6, 1.1' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 4' tail in p.a. 260 deg);
    11.16, 14.6, 1.1' (W. Kutschera, 0.508-m Newtonian + CCD; 0.03° tail);
    10.98, 14.3, 1' (M. Meyer, 0.05-m Refractor + CCD; 1' tail in p.a. 267 deg);
    10.81, 14.5, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.74, 14.3, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 263 deg);
    09.98, 14.5, 1' (M. Meyer, 0.05-m Refractor + CCD);
    09.81, 14.7, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    09.80, 14.1, 1.1' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 8.8' tail in p.a. 257 deg);
    09.77, 14.4, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 255 deg);
    09.70, 14.4, 1.1' (T. Yusa, 0.05-m Refractor + CCD; 1.2' tail in p.a. 252 deg);
    08.81, 14.3, 1.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.1' tail in p.a. 249 deg);
    08.78, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 253 deg);
    08.76, 13.2, 3.3' (R. Ramlow, Q62, 0.13-m Refractor + CCD; 8.5' tail in p.a. 250 deg);
    08.06, 14.2, 1.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    07.93, 15.4, 0.44' (S. Shurpakov, 0.41-m Newtonian + CCD);
    07.81, 14.3, 1.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.4' tail in p.a. 253 deg);
    07.66, 14.4, 1.1' (T. Yusa, 0.05-m Refractor + CCD; 1' tail in p.a. 260 deg);
    06.95, 15.5, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 10.1' tail in p.a. 256 deg);
    06.95, 15.6, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 6.8' tail in p.a. 259 deg);
    06.95, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.9' tail in p.a. 255 deg);
    06.18, 14.5, 0.9' (W. Kutschera, 0.508-m Newtonian + CCD);
    06.06, 14.8, 0.8' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.04, 12.2, 7.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.23° tail in p.a. 246 deg);
    05.93, 15.2, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.72, 14.4, 1' (T. Yusa, 0.05-m Refractor + CCD);
    04.79, 14.4, 0.8' (A. Pearce, Koorda, W. Australia, 0.05-m Refractor + CCD);
aug 29.06, 14.5, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD; 7.6' tail in p.a. 258 deg);
    26.09, 16.0, 0.34' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    25.97, 14.6, 1' (P. Dekelver, 0.3-m Newtonian + CCD; 2.1' tail in p.a. 265 deg);


93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.14, 17.9, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);


95P/Chiron
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 20.97, 18.5, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.99, 18.7, 0.11' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    05.08, 18.5, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


112P/Urata-Niijima
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 19.46, 16.5, 0.6' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
aug 26.00, 18.8, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


114P/Wiseman-Skiff
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.08, 17.2, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.45, 16.4, 0.5' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD; 1.5' tail in p.a. 292 deg);
    17.22, 17.5, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.16, 17.0, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.78, 16.6, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    06.08, 17.4, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
aug 26.07, 17.5, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


139P/Vaisala-Oterma
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.10, 19.9, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    17.04, 20.2, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    03.96, 20.3, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


161P/Hartley-IRAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.04, 11.3, 4.2' (M. Meyer, 0.05-m Refractor + CCD);
    22.67, 12.6, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.75, 12.5, 1.2' (Y. Nagai, 0.05-m Refractor + CCD);
    21.66, 12.6, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.60, 11.9, 4' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    21.25, 11.4, 5' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD);
    20.98, 13.6, 0.9' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    20.67, 12.7, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    20.60, 11.9, 4' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    19.38, 12.4, 1.7' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    17.98, 12.5, 3.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.98, 13.1, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.97, 12.8, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    17.67, 12.8, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    17.53, 11.7, 4' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    17.04, 12.0, 4' (M. Meyer, 0.05-m Refractor + CCD);
    16.98, 13.8, 1.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    16.73, 12.5, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    16.67, 13.0, 2.2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    16.64, 12.6, 3' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    16.51, 12.4, 2.9' (M. Mattiazzo, 0.07-m Camera lens + CCD);
    15.65, 12.8, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.13, 12.5, 6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.06, 13.9, 1.1' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.67, 12.9, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    12.56, 11.6, 6.5' (K. Yoshimoto, 0.106-m Refractor + CCD);
    12.07, 15.2, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.46, 13.3, 2.4' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
    11.08, 12.7, 3.3' (M. Meyer, 0.05-m Refractor + CCD);
    10.68, 13.0, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.67, 13.2, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.45, 13.0, 5.1' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD);
    10.11, 14.5, 1' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.79, 12.8, 2.4' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD);
    09.74, 11.8, 7.6' (R. Ramlow, Q62, 0.13-m Refractor + CCD);
    09.73, 13.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    09.68, 13.6, 1.8' (T. Yusa, 0.05-m Refractor + CCD);
    09.67, 13.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    09.01, 15.6, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.78, 13.0, 2.5' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    08.74, 13.1, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.75, 13.6, 2' (A. Pearce, Lighthouse Observatory, Kalamunda, W. Australia, 0.14-m Refractor + CCD);
    07.67, 13.4, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    06.67, 12.2, 7.4' (R. Ramlow, Q62, 0.13-m Refractor + CCD);
    06.11, 14.9, 0.8' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.08, 13.7, 1.7' (M. Meyer, 0.05-m Refractor + CCD);
    06.08, 12.0, 8.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD);
    05.68, 14.0, 2' (A. Pearce, Dowerin, W. Australia, 0.05-m Refractor + CCD);
    05.61, 13.0, 4' (K. Yoshimoto, 0.51-m Newtonian + CCD);
    04.67, 14.1, 2' (A. Pearce, Koorda, W. Australia, 0.05-m Refractor + CCD);
    01.43, 13.8, 1.5' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
aug 29.09, 15.9, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.32, 13.7, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    26.50, 13.7, 1.5' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
    26.09, 17.6, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


162P/Siding Spring
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 06.12, 18.1, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


169P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.17, 12.7, 1.7' (P. Dekelver, 0.3-m Newtonian + CCD; 8.9' tail in p.a. 277 deg);
    22.81, 12.7, 1' (T. Yusa, 0.05-m Refractor + CCD);
    21.50, 11.1, 4' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD; 10' tail in p.a. 279 deg);
    19.48, 11.1, 4' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD; 11' tail in p.a. 278 deg);
    18.48, 11.4, 4' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 8' tail in p.a. 280 deg);
    11.49, 11.2, 4' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
    09.50, 11.0, 4' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);


188P/LINEAR-Mueller
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 17.15, 19.6, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


220P/McNaught
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.93, 13.7, 0.7' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 0.7' tail in p.a. 265 deg);
    23.20, 13.1, 0.85' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 4.7' tail in p.a. 262 deg);
    22.93, 12.5, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD; 19.6' tail in p.a. 260 deg);
    22.74, 13.1, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 5.5' tail in p.a. 255 deg);
    21.95, 12.4, 3.2' (P. Dekelver, 0.3-m Newtonian + CCD; 18.2' tail in p.a. 261 deg);
    21.81, 11.6, 1.4' (O. Miyazaki, 0.32-m Newtonian);
    21.76, 12.8, 1.4' (Y. Nagai, 0.05-m Refractor + CCD);
    21.74, 12.6, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4.9' tail in p.a. 257 deg);
    21.71, 13.3, 1' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 250 deg);
    20.74, 13.4, 1' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4' tail in p.a. 259 deg);
    20.64, 13.1, 1.1' (D. Swan, Siding Spring, Coonabarabran, New South Wales, Australia, 0.51-m Cassegrain reflector + CCD);
    20.09, 14.4, 0.76' (S. Shurpakov, 0.41-m Newtonian + CCD; 8' tail in p.a. 256 deg);
    19.90, 13.0, 1' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 1.2' tail in p.a. 263 deg);
    19.39, 11.6, 3' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD; 1.1° tail in p.a. 260 deg);
    19.06, 12.3, 2' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    18.05, 12.3, 1.5' (E. Banach, 0.25-m Newtonian);
    17.95, 13.1, 2.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 9.4' tail in p.a. 260 deg);
    17.94, 12.7, 4.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 14.2' tail in p.a. 259 deg);
    17.94, 13.6, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 8.6' tail in p.a. 258 deg);
    17.55, 12.5, 1.9' (Y. Nagai, 0.05-m Refractor + CCD);
    17.15, 11.1, 3.2' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 26' tail in p.a. 260 deg);
    17.12, 12.0, 3.2' (M. Meyer, 0.05-m Refractor + CCD; 13.7' tail in p.a. 260 deg);
    16.96, 12.1, 3.8' (P. Dekelver, 0.3-m Newtonian + CCD; 22.1' tail in p.a. 261 deg);
    16.78, 12.1, 2.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 14.2' tail in p.a. 259 deg);
    16.74, 12.3, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2' tail in p.a. 253 deg);
    16.31, 11.7, 2.5' (M. Olason, Tucson Arizona, 0.03-m Refractor + CCD; 17' tail in p.a. 260 deg);
    16.15, 11.5, 2.8' (W. Kutschera, 0.508-m Newtonian; 0.06° tail);
    16.04, 12.2, 1.6' (Ł. Sanocki, Kryspinów, Poland, 0.065-m Refractor + CCD);
    15.76, 12.8, 1.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 4.1' tail in p.a. 256 deg);
    15.15, 11.3, 2.8' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 29' tail in p.a. 260 deg);
    15.08, 12.0, 2.4' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.06, 11.6, 3.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    14.96, 12.1, 3.6' (P. Dekelver, 0.3-m Newtonian + CCD; 25.7' tail in p.a. 259 deg);
    14.74, 12.5, 1.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.5' tail in p.a. 257 deg);
    14.19, 10.4, 4.7' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 26' tail in p.a. 261 deg);
    13.67, 12.6, 1.4' (Y. Yamaguchi, 0.08-m Refractor + CCD; 3.5' tail in p.a. 257 deg);
    13.40, 11.1, 5.7' (R. Ramlow, U94, 0.106-m Refractor + CCD; 67' tail in p.a. 255 deg);
    12.95, 12.2, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 6' tail in p.a. 262 deg);
    12.19, 10.9, 3.5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 27' tail in p.a. 260 deg);
    12.08, 11.7, 2.9' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    12.05, 14.1, 0.55' (S. Shurpakov, 0.41-m Newtonian + CCD; 4.3' tail in p.a. 261 deg);
    11.97, 12.3, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD; 24.3' tail in p.a. 259 deg);
    11.45, 12.3, 3' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 29' tail in p.a. 258 deg);
    11.42, 10.9, 3.4' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 2.54° tail in p.a. 256 deg);
    11.15, 10.7, 3.7' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 29' tail in p.a. 259 deg);
    11.04, 11.8, 2' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    11.02, 11.5, 2.8' (M. Meyer, 0.05-m Refractor + CCD; 14.5' tail in p.a. 258 deg);
    10.94, 11.9, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 5' tail in p.a. 265 deg);
    10.74, 12.1, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 3.6' tail in p.a. 258 deg);
    10.73, 12.4, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 9.7' tail in p.a. 258 deg);
    10.39, 11.7, 2.5' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 2.13° tail in p.a. 257 deg);
    10.17, 11.0, 2.7' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 29' tail in p.a. 259 deg);
    10.10, 11.1, 3.3' (W. Kutschera, 0.508-m Newtonian; 0.09° tail);
    10.01, 11.8, 4' (P. Dekelver, 0.3-m Newtonian + CCD; 21.7' tail in p.a. 258 deg);
    09.79, 11.0, 3.5' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 61.6' tail in p.a. 260 deg);
    09.75, 11.9, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 8.7' tail in p.a. 258 deg);
    09.74, 12.0, 2' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 3.3' tail in p.a. 258 deg);
    09.72, 11.6, 2.7' (T. Yusa, 0.05-m Refractor + CCD; 18.3' tail in p.a. 259 deg);
    09.08, 11.0, 2' (M. Kwinta, 0.3-m Newtonian);
    09.07, 11.2, 1.8' (Ł. Sanocki, Kryspinów, Poland, 0.065-m Refractor + CCD; 1.17° tail in p.a. 257 deg);
    09.05, 11.2, 2.5' (E. Banach, 0.25-m Newtonian);
    08.99, 10.8, 2.2' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 1.5' tail in p.a. 270 deg);
    08.97, 12.2, 2.4' (P. Dekelver, 0.3-m Newtonian + CCD; 21.2' tail in p.a. 258 deg);
    08.95, 12.5, 1.3' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 6' tail in p.a. 258 deg);
    08.76, 11.7, 2' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.2' tail in p.a. 258 deg);
    08.74, 11.4, 3' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 7.7' tail in p.a. 258 deg);
    08.30, 16.7, 2' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.3-m Hyperboloid astro-camera + CCD; 12' tail in p.a. 260 deg);
    08.09, 11.2, 3.8' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 45.6; Moon Alt. 12.9, 0.15-m Newtonian + CCD; 0.6° tail in p.a. 258 deg);
    08.09, 10.9, 5.7' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 45.9; Moon Alt. 13.7, 0.15-m Newtonian + CCD; 0.6° tail in p.a. 258 deg);
    07.99, 10.8, 2.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 5' tail in p.a. 260 deg);
    07.98, 11.9, 1.8' (M. Lošťák, Karlovy Vary, Czech Republic (SMPH), 0.05-m Refractor + CCD);
    07.91, 13.1, 0.92' (S. Shurpakov, 0.41-m Newtonian + CCD; 10' tail in p.a. 257 deg);
    07.74, 11.7, 2.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 7.5' tail in p.a. 258 deg);
    07.69, 11.6, 3' (T. Yusa, 0.05-m Refractor + CCD; 20.9' tail in p.a. 258 deg);
    07.19, 10.9, 1.6' (N. Paul, Canary Islands (MPC G40), 0.5-m Cassegrain reflector + CCD; 18.6' tail in p.a. 257 deg);
    07.17, 10.4, 3.9' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 29' tail in p.a. 258 deg);
    07.16, 14.2, 0.39' (H. Smith, 0.3-m Refractor + CCD; 20.9' tail in p.a. 77 deg);
    06.97, 12.8, 2.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.7° tail in p.a. 258 deg);
    06.96, 13.0, 2.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6° tail in p.a. 257 deg);
    06.96, 12.3, 4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.9° tail in p.a. 258 deg);
    06.15, 10.0, 2.6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 25' tail in p.a. 257 deg);
    06.13, 10.8, 3.1' (W. Kutschera, 0.508-m Newtonian; 0.12° tail);
    06.11, 10.4, 11' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.25° tail in p.a. 258 deg);
    06.07, 11.7, 2.5' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.04, 11.7, 3.1' (M. Meyer, 0.05-m Refractor + CCD; 17.9' tail in p.a. 258 deg);
    05.97, 11.9, 3.2' (P. Dekelver, 0.3-m Newtonian + CCD; 17.4' tail in p.a. 258 deg);
    05.73, 11.5, 3' (A. Pearce, Dowerin, W. Australia, 0.05-m Refractor + CCD; 21.2' tail in p.a. 256 deg);
    05.68, 11.5, 3.1' (T. Yusa, 0.05-m Refractor + CCD; 7.6' tail in p.a. 257 deg);
    04.98, 11.7, 3.3' (P. Dekelver, 0.3-m Newtonian + CCD; 15.9' tail in p.a. 257 deg);
    04.74, 12.0, 2' (A. Pearce, Koorda, W. Australia, 0.05-m Refractor + CCD; 9.8' tail in p.a. 257 deg);
    04.60, 11.5, 1.7' (C. Wyatt, 0.25-m Newtonian);
    04.42, 10.7, 5.6' (R. Ramlow, U94, 0.106-m Refractor + CCD; 73' tail in p.a. 256 deg);
    04.17, 9.2, 3' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 12' tail in p.a. 258 deg);
    03.17, 10.7, 1.4' (W. Kutschera, 0.508-m Newtonian; 0.1° tail);
    03.17, 10.6, 2.4' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 32' tail in p.a. 258 deg);
    02.07, 10.7, 7.5' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.83° tail in p.a. 257 deg);
    01.97, 10.6, 1.2' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 16' tail in p.a. 260 deg);
    01.41, 11.2, 3.5' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 28' tail in p.a. 256 deg);
    01.16, 10.3, 2.6' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 2.6' tail in p.a. 256 deg);
aug 31.99, 12.3, 1.6' (P. Dekelver, 0.3-m Newtonian + CCD; 21.4' tail in p.a. 258 deg);
    30.99, 10.4, 1.5' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 11' tail in p.a. 260 deg);
    29.96, 10.4, 2.4' (T. Sciezor, Cracow, 0.05-m Camera lens + CCD; 16.8' tail in p.a. 257 deg);
    29.16, 8.7, 5' (D. Heggie, ASERO, Valdin, 0.303-m Newtonian + CCD; 33' tail in p.a. 257 deg);
    28.99, 11.4, 3.5' (P. Dekelver, 0.3-m Newtonian + CCD; 20.8' tail in p.a. 257 deg);
    28.32, 10.6, 2' (J. de Souza Aguiar, 0.27-m Newtonian);
    28.08, 10.8, 2' (M. Kwinta, 0.3-m Newtonian);
    26.49, 10.6, 2.2' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 75.9' tail in p.a. 253 deg);
    25.99, 11.3, 3.2' (P. Dekelver, 0.3-m Newtonian + CCD; 22.9' tail in p.a. 256 deg);
    25.96, 10.8, 1.7' (A. Novichonok, Chalna logging, 0.2-m Newtonian);


235P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 08.79, 17.6, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    05.84, 18.2, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
aug 31.91, 18.3, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


245P/WISE
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 02.88, 19.9, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


247P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 17.21, 20.0, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.13, 19.6, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


260P/McNaught
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.99, 14.9, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD; 2.7' tail in p.a. 271 deg);
    22.72, 14.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 265 deg);
    21.11, 15.2, 0.28' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    21.02, 15.1, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD; 1.4' tail in p.a. 272 deg);
    19.01, 15.4, 0.29' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 0.7' tail in p.a. 271 deg);
    17.96, 14.9, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 269 deg);
    17.95, 15.3, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 268 deg);
    17.95, 15.8, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 269 deg);
    16.08, 14.5, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD; 0.01° tail);
    15.09, 14.8, 0.45' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    13.71, 14.4, 0.7' (Y. Yamaguchi, 0.08-m Refractor + CCD);
    12.91, 15.4, 0.45' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.4' tail in p.a. 272 deg);
    11.51, 14.9, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 2' tail in p.a. 265 deg);
    11.10, 14.1, 0.7' (W. Kutschera, 0.508-m Newtonian + CCD; 0.03° tail);
    09.91, 15.3, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 1' tail in p.a. 268 deg);
    09.90, 15.9, 0.2' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 1' tail in p.a. 262 deg);
    09.41, 14.2, 0.9' (R. Ramlow, U94, 0.106-m Refractor + CCD; 5.6' tail in p.a. 258 deg);
    08.97, 14.8, 0.15' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 0.5' tail in p.a. 270 deg);
    08.02, 14.3, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.21° tail in p.a. 264 deg);
    07.95, 15.3, 0.38' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.9' tail in p.a. 269 deg);
    07.09, 14.5, 0.6' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.94, 14.6, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 262 deg);
    06.94, 15.7, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.1' tail in p.a. 259 deg);
    06.93, 15.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5.3' tail in p.a. 260 deg);
    05.95, 15.1, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD; 2.2' tail in p.a. 265 deg);
    01.45, 14.0, 0.8' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 3' tail in p.a. 264 deg);
aug 29.11, 14.9, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD; 1.9' tail in p.a. 262 deg);
    28.33, 13.8, 1' (J. de Souza Aguiar, 0.27-m Newtonian);
    25.95, 14.7, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 1.8' tail in p.a. 262 deg);


302P/Lemmon-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.13, 19.7, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.11, 19.2, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    07.20, 19.8, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


315P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 17.06, 21.1, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


346P/Catalina
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 19.22, 17.8, 0.28' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.78, 14.6, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    10.77, 14.6, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.83, 14.4, 0.9' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);


C/2020 R4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 11.99, 16.0, 0.17' (S. Shurpakov, 0.41-m Newtonian + CCD; 1' tail in p.a. 134 deg);


C/2021 G2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 24.47, 15.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    22.47, 15.7, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    21.81, 16.7, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.78, 15.6, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.80, 16.2, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.80, 15.8, 1.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 232 deg);
    15.80, 16.9, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.79, 16.3, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.78, 16.0, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.76, 15.7, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    14.90, 17.0, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.50, 16.0, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    09.89, 16.8, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.86, 15.9, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 227 deg);
    08.80, 15.3, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.79, 16.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.79, 15.8, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.53, 15.8, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    07.47, 16.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    05.86, 16.6, 0.7' (M. Meyer, 0.05-m Refractor + CCD);
    05.82, 15.1, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.80, 16.0, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.78, 15.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.82, 15.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.9' tail in p.a. 235 deg);
    04.81, 15.7, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 237 deg);
    04.81, 16.5, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.80, 15.3, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.79, 15.9, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.79, 15.7, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    03.80, 15.8, 1.2' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.05° tail in p.a. 227 deg);
    02.91, 16.6, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    01.79, 16.1, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    01.79, 16.3, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
aug 30.52, 16.0, 0.6' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.90, 17.4, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    28.97, 16.6, 0.37' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.88, 16.9, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.88, 18.3, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    21.14, 18.8, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.79, 17.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.10, 16.5, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.09, 16.2, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.01, 18.3, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    14.94, 18.4, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    11.98, 18.0, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.92, 18.6, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.93, 18.4, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.66, 17.5, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    08.99, 17.7, 0.37' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.93, 16.9, 1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 35 deg);
    07.88, 18.0, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.92, 18.7, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.91, 18.1, 1.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.90, 16.7, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.65, 17.3, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    05.09, 18.2, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.89, 17.1, 1.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.87, 16.5, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.84, 16.7, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.90, 18.3, 0.28' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    01.91, 16.8, 0.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 1.4' tail in p.a. 36 deg);
aug 29.01, 18.1, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.90, 18.1, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.01, 16.4, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.18, 16.2, 0.45' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.11, 16.7, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
aug 30.22, 17.0, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    26.11, 16.2, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.97, 19.0, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.10, 18.4, 0.28' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    05.99, 18.8, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    05.88, 18.1, 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):
2026
sep 19.93, 19.2, 0.3' (S. Shurpakov, 0.41-m Newtonian + CCD);
    17.86, 19.1, 0.17' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.83, 18.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    04.83, 18.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    02.92, 19.0, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.51, 15.1, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    21.52, 15.0, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    20.53, 14.9, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    15.54, 15.1, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    14.54, 15.4, 0.5' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 0.7' tail in p.a. 103 deg);
    12.54, 14.9, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.54, 14.9, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    10.53, 14.9, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 75 deg);
    09.53, 14.5, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    08.54, 14.8, 0.5' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    08.53, 14.8, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD);
    07.54, 14.8, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 0.8' tail in p.a. 83 deg);
    06.54, 14.9, 0.8' (A. Pearce, Dowerin, W. Australia, 0.05-m Refractor + CCD; 1.1' tail in p.a. 85 deg);
    05.56, 14.7, 0.8' (A. Pearce, Dowerin, W. Australia, 0.05-m Refractor + CCD; 1' tail in p.a. 72 deg);
    04.53, 14.7, 0.8' (A. Pearce, Koorda, W. Australia, 0.05-m Refractor + CCD; 2' tail in p.a. 83 deg);
    03.77, 14.5, 1.1' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.07° tail in p.a. 76 deg);
    02.13, 14.4, 0.6' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD);
aug 30.49, 14.6, 0.4' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD);
    29.85, 15.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    29.44, 15.1, 0.3' (D. Swan, MPC Q62, 0.5-m Cassegrain reflector + CCD);


C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 14.88, 18.9, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    06.81, 19.7, 0.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
aug 31.89, 19.5, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


C/2024 A1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 04.84, 18.2, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2024 G4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 11.95, 18.8, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.80, 18.6, 0.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.80, 17.8, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    06.80, 17.0, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.79, 18.0, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    14.85, 18.2, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    10.81, 18.1, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    09.87, 18.1, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.78, 18.2, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 166 deg);
    02.89, 17.3, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
aug 25.84, 18.0, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.92, 14.1, 0.8' (M. Meyer, 0.05-m Refractor + CCD);
    22.51, 14.0, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    22.03, 14.1, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD; 4.1' tail in p.a. 164 deg);
    21.80, 13.7, 0.6' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD);
    20.90, 14.2, 0.6' (M. Meyer, 0.05-m Refractor + CCD);
    20.86, 14.6, 0.35' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    20.81, 13.9, 1.3' (P. Dekelver, 0.3-m Newtonian + CCD; 4.1' tail in p.a. 168 deg);
    19.85, 15.1, 0.52' (S. Shurpakov, 0.41-m Newtonian + CCD);
    19.79, 13.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.78, 14.1, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.77, 13.8, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    19.77, 15.1, 0.3' (S. Shurpakov, 0.41-m Newtonian + CCD);
    18.94, 14.1, 0.9' (M. Meyer, 0.05-m Refractor + CCD; 0.6' tail in p.a. 177 deg);
    18.80, 13.9, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.79, 14.6, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 170 deg);
    18.79, 13.6, 2.1' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 174 deg);
    17.88, 14.1, 0.8' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    17.76, 13.6, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.9' tail in p.a. 167 deg);
    17.76, 13.9, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.3' tail in p.a. 165 deg);
    17.76, 14.7, 0.9' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.4' tail in p.a. 164 deg);
    17.54, 14.0, 0.8' (Y. Nagai, 0.05-m Refractor + CCD);
    16.89, 13.5, 0.7' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.88, 14.1, 0.9' (M. Meyer, 0.05-m Refractor + CCD);
    15.95, 13.1, 1.3' (W. Kutschera, 0.508-m Newtonian);
    15.88, 14.0, 0.9' (M. Meyer, 0.05-m Refractor + CCD);
    15.85, 13.9, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.15° tail in p.a. 170 deg);
    15.83, 12.5, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.82, 13.8, 3.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    15.81, 13.7, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 150 deg);
    15.78, 14.3, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.8' tail in p.a. 163 deg);
    15.78, 13.5, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 4.6' tail in p.a. 164 deg);
    15.78, 14.1, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 5' tail in p.a. 167 deg);
    14.83, 13.7, 1.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 170 deg);
    14.81, 13.6, 0.9' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD; 2.2' tail in p.a. 169 deg);
    14.79, 14.0, 1.1' (H. Kiiskinen, Hankasalmi observatory (62.25470 N, 26.59640 E); Comet Alt. 65.4; Moon Alt. -17.4, 0.4-m Ritchey-Chretien + CCD);
    14.79, 13.6, 1.1' (H. Kiiskinen, Hankasalmi observatory (62.25470 N, 26.59640 E); Comet Alt. 64.4; Moon Alt. -18.6, 0.4-m Ritchey-Chretien + CCD);
    13.85, 13.7, 0.7' (C. Harder, Jeersdorf f, 0.531-m Newtonian; 1' tail in p.a. 190 deg);
    12.84, 13.4, 0.9' (H. Smith, 0.2-m Newtonian + CCD; 5.3' tail in p.a. 164 deg);
    12.78, 14.9, 0.4' (S. Shurpakov, 0.41-m Newtonian + CCD);
    12.39, 14.0, 0.7' (D. Swan, UDRO, Great Basin Desert, Beryl Junction, Utah, USA, 0.508-m Cassegrain reflector + CCD);
    11.86, 14.3, 0.5' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 0.8' tail in p.a. 210 deg);
    11.86, 13.9, 1.2' (U. Pilz, Jessnigk, 0.035-m Refractor + CCD);
    11.79, 14.4, 0.29' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.2' tail in p.a. 168 deg);
    11.48, 14.1, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    11.21, 13.1, 0.6' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 158 deg);
    10.95, 14.5, 0.5' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    10.86, 13.9, 1' (M. Meyer, 0.05-m Refractor + CCD; 0.9' tail in p.a. 186 deg);
    10.53, 14.0, 0.8' (T. Yusa, 0.05-m Refractor + CCD);
    09.92, 13.5, 1.9' (U. Pilz, Jessnigk, 0.035-m Refractor + CCD);
    09.89, 13.6, 1' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    09.60, 14.0, 0.9' (T. Yusa, 0.05-m Refractor + CCD);
    08.86, 13.7, 2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 169 deg);
    08.83, 14.4, 0.35' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    08.81, 13.8, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 172 deg);
    08.81, 14.7, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 170 deg);
    08.80, 14.2, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.7' tail in p.a. 168 deg);
    07.91, 13.6, 1.1' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 55.7; Moon Alt. -15.8, 0.15-m Newtonian + CCD; 0.7' tail in p.a. 193 deg);
    07.90, 14.0, 1.1' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 56.5; Moon Alt. -16.0, 0.15-m Newtonian + CCD; 0.8' tail in p.a. 178 deg);
    07.89, 13.9, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.15° tail in p.a. 170 deg);
    07.85, 14.6, 0.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 1' tail in p.a. 200 deg);
    07.76, 15.0, 0.4' (S. Shurpakov, 0.41-m Newtonian + CCD; 2.5' tail in p.a. 168 deg);
    07.51, 14.1, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 172 deg);
    06.79, 14.1, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3' tail in p.a. 164 deg);
    06.79, 13.8, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    06.79, 15.1, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 167 deg);
    06.79, 14.5, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 175 deg);
    06.78, 14.5, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.5' tail in p.a. 168 deg);
    06.77, 13.9, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 175 deg);
    06.03, 14.1, 0.7' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    05.94, 13.8, 0.9' (M. Meyer, 0.05-m Refractor + CCD);
    05.86, 13.7, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.85, 14.6, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 150 deg);
    05.85, 14.1, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 169 deg);
    05.85, 15.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 172 deg);
    05.84, 14.0, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    05.84, 14.4, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 169 deg);
    05.83, 13.9, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 171 deg);
    05.77, 15.2, 0.41' (S. Shurpakov, 0.41-m Newtonian + CCD);
    05.61, 13.9, 0.7' (T. Yusa, 0.05-m Refractor + CCD);
    04.83, 13.9, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    04.82, 14.4, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 161 deg);
    04.81, 14.0, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 161 deg);
    04.78, 14.8, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.6' tail in p.a. 173 deg);
    04.78, 14.1, 1.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 175 deg);
    04.78, 13.8, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1' tail in p.a. 174 deg);
    02.93, 13.2, 0.9' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    02.81, 13.9, 0.7' (H. Kiiskinen, Hankasalmi observatory (62.25470 N, 26.59640 E); Comet Alt. 67.0; Moon Alt. 12.7, 0.4-m Ritchey-Chretien + CCD);
    01.86, 13.7, 1.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.11° tail in p.a. 170 deg);
    01.82, 14.0, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    01.82, 14.4, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    01.81, 14.6, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
aug 29.88, 14.8, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    29.81, 15.6, 0.3' (S. Shurpakov, 0.41-m Newtonian + CCD);
    29.80, 13.0, 2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    29.79, 14.0, 1.5' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    29.79, 13.8, 1.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);


C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.13, 15.3, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD; 1.5' tail in p.a. 120 deg);
    22.96, 15.0, 0.47' (M. Meyer, 0.05-m Refractor + CCD);
    22.56, 14.5, 0.5' (T. Yusa, 0.05-m Refractor + CCD);
    22.05, 15.6, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD; 0.7' tail in p.a. 136 deg);
    20.99, 14.8, 0.35' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD);
    20.94, 14.7, 0.32' (M. Meyer, 0.05-m Refractor + CCD; 0.3' tail in p.a. 129 deg);
    19.87, 15.6, 0.34' (S. Shurpakov, 0.41-m Newtonian + CCD; 1' tail in p.a. 136 deg);
    18.90, 14.9, 0.6' (M. Meyer, 0.05-m Refractor + CCD; 0.6' tail in p.a. 132 deg);
    17.77, 15.1, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 132 deg);
    17.77, 15.5, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.8' tail in p.a. 130 deg);
    17.77, 14.6, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1' tail in p.a. 131 deg);
    17.08, 15.4, 0.48' (M. Meyer, 0.05-m Refractor + CCD; 0.4' tail in p.a. 135 deg);
    16.90, 14.9, 0.3' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    15.98, 14.6, 0.6' (W. Kutschera, 0.508-m Newtonian + CCD; 0.03° tail);
    15.92, 15.0, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 130 deg);
    15.81, 14.3, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 130 deg);
    15.81, 14.9, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 133 deg);
    15.80, 15.2, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.2' tail in p.a. 131 deg);
    14.88, 14.8, 1.5' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    14.85, 14.9, 0.33' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD; 1.3' tail in p.a. 132 deg);
    12.83, 16.0, 0.37' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.1' tail in p.a. 139 deg);
    11.89, 15.2, 0.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 1.2' tail in p.a. 100 deg);
    11.55, 15.6, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    11.36, 15.5, 0.33' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 135 deg);
    10.57, 15.4, 0.5' (T. Yusa, 0.05-m Refractor + CCD; 0.4' tail in p.a. 138 deg);
    09.91, 15.4, 0.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 0.5' tail in p.a. 105 deg);
    09.64, 15.3, 0.3' (T. Yusa, 0.05-m Refractor + CCD);
    08.84, 15.0, 0.35' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    08.83, 15.0, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 132 deg);
    08.83, 15.5, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2' tail in p.a. 136 deg);
    08.83, 15.9, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 134 deg);
    07.99, 15.2, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.9' tail in p.a. 134 deg);
    07.83, 15.0, 0.3' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    07.77, 16.0, 0.35' (S. Shurpakov, 0.41-m Newtonian + CCD; 1.3' tail in p.a. 134 deg);
    07.55, 15.6, 0.4' (T. Yusa, 0.05-m Refractor + CCD; 0.3' tail in p.a. 140 deg);
    06.85, 15.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 136 deg);
    06.84, 16.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 135 deg);
    06.84, 15.6, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 134 deg);
    06.00, 15.0, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 136 deg);
    05.87, 16.1, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 139 deg);
    05.87, 15.7, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 136 deg);
    05.87, 15.4, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.3' tail in p.a. 139 deg);
    05.79, 15.9, 0.31' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.6' tail in p.a. 135 deg);
    04.80, 15.6, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 137 deg);
    04.80, 15.9, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.1' tail in p.a. 140 deg);
    04.80, 15.4, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.8' tail in p.a. 137 deg);
    02.95, 15.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);
    02.82, 15.0, 0.7' (H. Kiiskinen, Hankasalmi observatory (62.25470 N, 26.59640 E); Comet Alt. 77.2; Moon Alt. 14.0, 0.4-m Ritchey-Chretien + CCD);
    01.99, 15.1, 0.7' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2' tail in p.a. 140 deg);
aug 29.90, 15.0, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);


C/2024 T5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 23.10, 14.1, 0.45' (P. Dekelver, 0.3-m Newtonian + CCD; 6.3' tail in p.a. 233 deg);
    22.86, 13.9, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.4' tail in p.a. 238 deg);
    22.79, 13.9, 0.7' (T. Yusa, 0.05-m Refractor + CCD; 0.7' tail in p.a. 235 deg);
    21.86, 14.0, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.2' tail in p.a. 234 deg);
    21.74, 13.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 242 deg);
    21.10, 14.0, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD; 5.1' tail in p.a. 230 deg);
    20.86, 14.0, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.2' tail in p.a. 239 deg);
    20.10, 14.9, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD);
    18.21, 14.2, 0.6' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    17.86, 14.0, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.5' tail in p.a. 234 deg);
    16.80, 13.9, 0.8' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 5.2' tail in p.a. 229 deg);
    15.86, 14.2, 0.6' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.1' tail in p.a. 227 deg);
    12.13, 14.1, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 3.9' tail in p.a. 227 deg);
    11.47, 14.3, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 3' tail in p.a. 230 deg);
    10.86, 14.2, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 3.7' tail in p.a. 232 deg);
    10.77, 13.8, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4.4' tail in p.a. 229 deg);
    09.86, 14.3, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 2.7' tail in p.a. 228 deg);
    09.78, 13.6, 0.8' (M. Mattiazzo, 0.28-m Schmidt reflector + CCD; 4.4' tail in p.a. 228 deg);
    09.76, 14.2, 0.5' (T. Yusa, 0.05-m Refractor + CCD; 0.5' tail in p.a. 233 deg);
    08.86, 14.0, 0.8' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.8' tail in p.a. 237 deg);
    08.80, 13.9, 0.7' (A. Pearce, Perth Observatory, Bickley, 0.35-m Schmidt-Cassegrain + CCD; 4' tail in p.a. 231 deg);
    08.09, 13.5, 0.6' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    07.86, 14.0, 0.7' (A. Pearce, Nedlands, Perth, W. Australia, 0.05-m Refractor + CCD; 1.3' tail in p.a. 234 deg);
    01.44, 14.0, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 2' tail in p.a. 230 deg);


C/2025 B2 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 19.90, 18.0, 0.21' (S. Shurpakov, 0.41-m Newtonian + CCD);
    13.07, 18.6, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD);
    07.90, 18.1, 0.32' (S. Shurpakov, 0.41-m Newtonian + CCD);
    05.88, 18.4, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.08, 17.4, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.20, 18.1, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    15.06, 17.8, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.10, 17.8, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
aug 26.12, 17.9, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


C/2025 K3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 06.82, 19.1, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2025 M2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 08.81, 16.4, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    04.44, 16.4, 0.5' (R. Ramlow, Q62, 0.13-m Refractor + CCD);
    03.84, 16.2, 0.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    01.82, 16.9, 0.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);


C/2026 A2 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 24.43, 14.1, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.5' tail in p.a. 95 deg);
    23.12, 14.2, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD; 1.9' tail in p.a. 102 deg);
    22.88, 14.1, 0.9' (M. Meyer, 0.05-m Refractor + CCD; 0.7' tail in p.a. 94 deg);
    22.53, 14.0, 0.9' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 102 deg);
    22.01, 14.1, 0.8' (P. Dekelver, 0.3-m Newtonian + CCD; 2' tail in p.a. 104 deg);
    21.87, 15.1, 0.23' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    21.82, 14.0, 0.6' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD; 1.4' tail in p.a. 107 deg);
    20.86, 14.4, 0.7' (M. Meyer, 0.05-m Refractor + CCD; 0.8' tail in p.a. 95 deg);
    20.82, 14.3, 0.6' (J. Solaz, Escaldarium Observatory,Caldes de Montbui (MPC D28), 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 99 deg);
    20.79, 14.0, 1' (P. Dekelver, 0.3-m Newtonian + CCD; 2.7' tail in p.a. 108 deg);
    19.88, 15.7, 0.27' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.8' tail in p.a. 87 deg);
    19.83, 13.3, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 105 deg);
    19.82, 13.5, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 105 deg);
    19.82, 14.1, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 106 deg);
    18.86, 14.3, 0.6' (M. Meyer, 0.05-m Refractor + CCD; 0.5' tail in p.a. 102 deg);
    18.83, 12.2, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    18.83, 13.8, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 100 deg);
    18.82, 13.5, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 108 deg);
    17.95, 15.2, 1' (T. Ferreira, Dobsonian Power (MPC R39), 0.41-m Newtonian + CCD);
    17.89, 14.5, 0.7' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);
    17.79, 13.7, 1.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 108 deg);
    17.78, 14.7, 1.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.5' tail in p.a. 110 deg);
    17.78, 14.3, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 108 deg);
    16.88, 14.2, 0.8' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    16.83, 14.3, 0.7' (M. Meyer, 0.05-m Refractor + CCD; 0.7' tail in p.a. 101 deg);
    15.87, 12.2, 3.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 124 deg);
    15.87, 13.5, 3.2' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 119 deg);
    15.86, 13.6, 3.6' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 112 deg);
    15.85, 13.5, 4.2' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 111 deg);
    15.83, 14.5, 0.7' (M. Meyer, 0.05-m Refractor + CCD; 0.5' tail in p.a. 100 deg);
    15.82, 14.0, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.7' tail in p.a. 106 deg);
    15.82, 14.4, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 106 deg);
    15.82, 14.8, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 107 deg);
    15.81, 13.6, 3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 114 deg);
    15.07, 13.7, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.6' tail in p.a. 94 deg);
    15.06, 14.5, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 109 deg);
    15.04, 13.8, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 106 deg);
    14.83, 14.2, 0.7' (E. Bryssinck, Brixiis Observatory, Kruibeke (MPC B96), 0.4-m Newtonian + CCD; 1.2' tail in p.a. 102 deg);
    14.83, 14.5, 0.5' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    14.80, 14.1, 1.3' (U. Pilz, Leipzig, 0.035-m Refractor + CCD);
    13.85, 14.5, 0.6' (C. Harder, Jeersdorf f, 0.531-m Newtonian);
    13.04, 15.9, 0.26' (S. Shurpakov, 0.41-m Newtonian + CCD; 1' tail in p.a. 101 deg);
    11.87, 14.9, 0.45' (C. Harder, HTT Jessnick, 0.531-m Newtonian; 1.2' tail in p.a. 120 deg);
    11.17, 14.7, 0.7' (D. Bartlett, June Lake Overlook (MPC U66), 0.28-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 107 deg);
    10.98, 15.1, 0.4' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    10.91, 14.6, 0.8' (M. Meyer, 0.05-m Refractor + CCD; 0.6' tail in p.a. 100 deg);
    10.59, 14.8, 0.6' (T. Yusa, 0.05-m Refractor + CCD; 0.6' tail in p.a. 101 deg);
    09.88, 15.3, 0.65' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    08.87, 15.1, 0.45' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    08.83, 13.8, 3.1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.05° tail in p.a. 122 deg);
    08.82, 14.3, 1.1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.5' tail in p.a. 104 deg);
    08.82, 15.2, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.2' tail in p.a. 107 deg);
    08.81, 14.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.9' tail in p.a. 110 deg);
    07.89, 15.6, 0.3' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.8' tail in p.a. 113 deg);
    07.86, 15.8, 0.5' (C. Harder, HTT Jessnick, 0.531-m Newtonian);
    07.84, 14.5, 0.9' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 57.9; Moon Alt. -18.2, 0.15-m Newtonian + CCD; 1.6' tail in p.a. 102 deg);
    07.84, 14.1, 0.9' (M. Mašek, Hodkovice n M. (50.67000 N, 15.08000 E); Comet Alt. 57.5; Moon Alt. -18.2, 0.15-m Newtonian + CCD; 1.6' tail in p.a. 102 deg);
    07.82, 14.4, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 2.3' tail in p.a. 109 deg);
    07.49, 14.5, 0.6' (T. Yusa, 0.05-m Refractor + CCD);
    06.83, 15.1, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.6' tail in p.a. 116 deg);
    06.83, 14.7, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.5' tail in p.a. 114 deg);
    06.82, 14.9, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.8' tail in p.a. 114 deg);
    06.82, 14.1, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    06.81, 15.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD);
    06.80, 14.3, 3' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 100 deg);
    05.90, 14.9, 0.47' (M. Meyer, 0.05-m Refractor + CCD; 0.7' tail in p.a. 108 deg);
    05.89, 14.4, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 103 deg);
    05.88, 15.1, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.9' tail in p.a. 107 deg);
    05.87, 14.5, 2.4' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 109 deg);
    05.86, 15.0, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 106 deg);
    05.86, 14.4, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.6' tail in p.a. 113 deg);
    05.85, 14.7, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 3.1' tail in p.a. 111 deg);
    05.85, 15.8, 0.27' (S. Shurpakov, 0.41-m Newtonian + CCD; 0.9' tail in p.a. 103 deg);
    04.86, 14.9, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 115 deg);
    04.85, 14.7, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.3' tail in p.a. 98 deg);
    04.84, 14.4, 2.8' (T. Csorgei, 0.28-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 104 deg);
    04.79, 15.2, 1.2' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 1.4' tail in p.a. 112 deg);
    04.79, 14.2, 1.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.1' tail in p.a. 113 deg);
    04.79, 14.8, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 2.3' tail in p.a. 113 deg);
    01.94, 14.2, 1.9' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 2.1' tail in p.a. 126 deg);
    01.49, 14.6, 0.7' (M. Olason, Tucson Arizona, 0.05-m Refractor + CCD; 1' tail in p.a. 122 deg);
aug 30.35, 15.4, 0.3' (D. Swan, MPC U94, 0.508-m Cassegrain reflector + CCD);


C/2026 AZ17 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 21.84, 17.1, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    15.77, 16.8, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.77, 18.0, 0.4' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    15.76, 17.3, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 121 deg);
    14.87, 17.5, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);
    14.80, 16.8, 0.8' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.5' tail in p.a. 118 deg);
    10.83, 17.5, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.78, 16.1, 1' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.78, 17.5, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    08.78, 17.0, 0.8' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 115 deg);
    07.84, 16.9, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    04.83, 16.2, 0.7' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.2' tail in p.a. 141 deg);
    04.82, 16.7, 0.6' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD; 0.4' tail in p.a. 145 deg);
    04.82, 16.5, 0.5' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);
    01.82, 16.7, 1' (S. Fritsche, Koeditz, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 117 deg);


C/2026 J1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 06.81, 19.0, 0.3' (J. Koukal, Valasske Mezirici, 0.5-m Newtonian + CCD);


C/2026 O1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 16.92, 18.4, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


P/2012 K3 (Gibbs)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 02.95, 21.2, 0.16' (K. Hills, Tacande Observatory, La Palma (MPC J22), 0.5-m Newtonian + CCD);


P/2018 VN2 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 10.09, 18.2, 0.22' (P. Dekelver, 0.3-m Newtonian + CCD);


P/2021 N1 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2026
sep 22.98, 19.1, 0.15' (P. Dekelver, 0.3-m Newtonian + CCD);
    19.41, 18.2, 0.23' (M. Olason, Tucson Arizona, 0.091-m Refractor + CCD; 0.6' tail in p.a. 270 deg);
    07.64, 17.4, 0.4' (T. Yusa, 0.05-m Refractor + CCD);
    03.00, 17.5, 0.4' (P. Carson, PGC, Fregenal de la Sierra, 0.315-m Cassegrain reflector + CCD);