Recent Comet Brightness Estimates

12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.44, 8.7, 8' (A. Pearce, 0.05-m Refractor + CCD);
    15.44, 8.8, 8' (A. Pearce, 0.05-m Refractor + CCD);
    13.44, 8.6, 9' (A. Pearce, 0.05-m Refractor + CCD);
    11.73, 9.3, 3.5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    10.77, 8.8, 3.6' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    10.36, 8.1, 6.6' (C. Wyatt, 0.25-m Newtonian);
    09.74, 8.7, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 5.5' tail in p.a. 290 deg);
    08.74, 8.8, 4.5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 9' tail in p.a. 295 deg);
    07.74, 8.8, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 15' tail in p.a. 295 deg);
    06.89, 7.9, 2' (J. de Souza Aguiar, 25x100 Binoculars);
    06.74, 8.7, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 9.5' tail in p.a. 295 deg);
    06.37, 8.0, 5' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    05.92, 7.8, 4' (M. Goiato, 20x100 Binoculars);
    05.74, 8.5, 4.5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 11' tail in p.a. 295 deg);
    05.72, 8.2, 5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 10' tail);
    05.44, 8.4, 8.5' (A. Pearce, 0.05-m Refractor + CCD);
    04.73, 8.5, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    04.44, 8.2, 8.6' (A. Pearce, 0.05-m Refractor + CCD; 1.8' tail in p.a. 162 deg);
    03.74, 8.5, 5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 17' tail in p.a. 295 deg);
    03.44, 8.3, 9' (A. Pearce, 0.05-m Refractor + CCD; 2.4' tail in p.a. 163 deg);
    02.89, 7.8, 2' (J. de Souza Aguiar, 25x100 Binoculars);
    02.74, 8.3, 5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    02.74, 7.5, 15' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.61° tail in p.a. 164 deg);
    02.44, 8.1, 9.3' (A. Pearce, 0.05-m Refractor + CCD; 3.8' tail in p.a. 170 deg);
    02.38, 7.8, 5' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    01.90, 7.7, 3' (J. de Souza Aguiar, 25x100 Binoculars);
    01.74, 8.3, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 14' tail in p.a. 294 deg);
jun 30.73, 8.4, 3.4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    30.72, 7.9, 5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 15' tail);
    30.44, 8.0, 9.3' (A. Pearce, 0.05-m Refractor + CCD; 4' tail in p.a. 169 deg);
    30.36, 7.6, 5' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    29.74, 8.3, 4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian);
    29.44, 8.0, 9.3' (A. Pearce, 0.05-m Refractor + CCD; 4.1' tail in p.a. 166 deg);
    28.72, 7.5, 7' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 22' tail);
    28.44, 7.9, 9.6' (A. Pearce, 0.05-m Refractor + CCD; 4.7' tail in p.a. 167 deg);
    28.36, 7.5, 7.5' (C. Wyatt, 15x70 Binoculars; 9.5' tail in p.a. 163 deg);
    27.36, 7.4, 7.3' (C. Wyatt, 15x70 Binoculars);
    26.73, 8.0, 5' (C. Harder, Heimat, Namibia, 0.221-m Newtonian; 11.5' tail in p.a. 310 deg);
    26.72, 7.7, 8' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 20' tail);
    26.46, 7.8, 10.1' (A. Pearce, 0.05-m Refractor + CCD; 4.7' tail in p.a. 162 deg);
    26.35, 7.4, 6.5' (C. Wyatt, 15x70 Binoculars);
    25.44, 7.7, 10.2' (A. Pearce, 0.05-m Refractor + CCD; 5.2' tail in p.a. 165 deg);
    24.44, 7.9, 10.1' (A. Pearce, 0.05-m Refractor + CCD; 10.9' tail in p.a. 159 deg);
    24.37, 7.3, 6' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    24.35, 7.0, 9' (C. Wyatt, 15x70 Binoculars);
    23.93, 7.3, 4' (M. Goiato, 20x100 Binoculars);
    23.89, 7.4, 3' (J. de Souza Aguiar, 25x100 Binoculars);
    23.73, 7.0, 19' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.24° tail in p.a. 155 deg);
    23.44, 8.3, 10.4' (A. Pearce, 0.05-m Refractor + CCD; 5.3' tail in p.a. 163 deg);
    23.36, 7.3, 6' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);

13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 21.88, 7.1, 6.9' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.5° tail in p.a. 59 deg);
    21.88, 6.9, 2.5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    21.87, 6.9, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    21.48, 7.1, 2.2' (O. Miyazaki, 20x80 Binoculars);
    20.93, 6.9, 4.5' (M. Meyer, 10x50 Binoculars);
    20.88, 6.9, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    19.94, 6.9, 9.78' (N. James, 0.072-m Refractor + CCD);
    19.93, 7.6, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 24.4' tail in p.a. 51 deg);
    19.93, 6.8, 5' (M. Meyer, 10x50 Binoculars);
    18.94, 6.9, 9.02' (N. James, 0.072-m Refractor + CCD);
    18.93, 6.9, 5' (M. Meyer, 10x50 Binoculars);
    18.88, 6.7, 9' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD; 0.5° tail in p.a. 53 deg);
    18.88, 6.9, 5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    18.87, 6.7, 9' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD; 0.5° tail in p.a. 53 deg);
    17.94, 6.7, 4.5' (M. Meyer, 10x50 Binoculars);
    17.93, 7.1, 3.8' (V. Kasten, 20x80 Binoculars);
    17.92, 7.0, 3' (C. Harder, Jeersdorf f, 0.252-m Newtonian; 7' tail in p.a. 35 deg);
    17.89, 7.3, 6.7' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 0.4° tail in p.a. 51 deg);
    16.88, 6.4, 5' (G. Scheerle, 9x63.0 Binoculars);
    16.88, 6.4, 6' (G. Scheerle, 0.235-m Schmidt-Cassegrain; 0.35° tail in p.a. 60 deg);
    15.88, 6.9, 4' (E. Banach, 12x60 Binoculars);
    15.88, 6.9, 4' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    14.94, 6.8, 10.15' (N. James, 0.072-m Refractor + CCD);
    14.89, 6.8, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    14.48, 6.7, 5' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    13.95, 6.6, 5' (A. Scholten, Eerbeek, 15x80 Binoculars);
    13.94, 6.8, 2.5' (B. Granslo, Arnhem, Netherlands, 0.08-m Refractor);
    12.88, 6.5, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 17° tail in p.a. 46 deg);
    10.89, 6.5, 4' (P. Guzik, 10x42.0 Binoculars);
    09.92, 6.3, 20' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.45° tail in p.a. 46 deg);
    09.91, 6.9, 3' (J. Cerny, 25x100 Binoculars; 16.8' tail in p.a. 55 deg);
    09.90, 6.8, 12.2' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    09.89, 6.0, 28' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.31° tail in p.a. 29 deg);
    08.89, 6.7, 7' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    08.88, 6.3, 17' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.31° tail in p.a. 49 deg);
    08.88, 6.7, 9' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    08.88, 6.8, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    07.94, 6.7, 13.16' (N. James, 0.072-m Refractor + CCD);
    07.91, 6.7, 12.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    07.88, 6.5, 4' (G. Scheerle, 9x63.0 Binoculars; 0.6° tail in p.a. 45 deg);
    07.88, 6.2, 4' (G. Scheerle, 0.235-m Schmidt-Cassegrain; 0.2° tail in p.a. 55 deg);
    07.88, 6.3, 17' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.36° tail in p.a. 19 deg);
    07.51, 6.2, 8.7' (K. Yoshimoto, 0.077-m Refractor + CCD; 2° tail in p.a. 50 deg);
    06.94, 6.7, 12.78' (N. James, 0.072-m Refractor + CCD);
    06.92, 7.2, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 24.4' tail in p.a. 55 deg);
    06.92, 6.5, 9' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD; 0.58° tail in p.a. 55 deg);
    06.91, 6.5, 5.6' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD; 0.37° tail in p.a. 56 deg);
    06.86, 8.1, -- (T. Csorgei, Blahová, 0.27-m Schmidt-Cassegrain + CCD);
    05.92, 6.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 5' tail in p.a. 74 deg);
    05.88, 6.5, 9.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.23° tail in p.a. 51 deg);
    05.49, 6.8, 4' (Y. Sugiyama, 0.12-m Refractor);
    05.48, 6.3, 4' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 5' tail in p.a. 75 deg);
    04.91, 6.4, 5.5' (A. Kammerer, Voelkersbach (Black Forest), Germany, 9x63.0 Binoculars; 0.25° tail in p.a. 55 deg);
    04.89, 7.0, 7.5' (J. Chambó Bris, Nerpio, Spain, 0.25-m Newtonian + CCD; 1° tail in p.a. 48 deg);
    04.48, 6.7, 4' (Y. Sugiyama, 0.12-m Refractor);
    03.90, 6.6, 9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.90, 6.8, 9.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.90, 6.9, 5.6' (M. Paradowski, 0.068-m Refractor + CCD; 0.24° tail in p.a. 57 deg);
    02.89, 6.8, 5.6' (M. Paradowski, 0.068-m Refractor + CCD; 0.36° tail in p.a. 51 deg);
    02.89, 6.8, 5.6' (M. Paradowski, 0.068-m Refractor + CCD; 0.25° tail in p.a. 59 deg);
    01.91, 7.3, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 21.6' tail in p.a. 56 deg);
    01.91, 6.1, 5' (J. Gonzalez Suarez, 10x50 Binoculars; 0.8° tail in p.a. 50 deg);
    01.90, 6.6, 10.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.90, 6.4, 4' (C. Labordena, Culla, 11x80 Binoculars; 25' tail);
    01.89, 6.6, 4' (C. Labordena, Culla, 11x80 Binoculars; 18' tail);
    01.89, 6.2, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 0.8° tail in p.a. 50 deg);
    01.47, 6.7, 4' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
jun 30.83, 6.8, 3' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD; 10' tail);
    29.95, 6.8, 9.4' (N. James, 0.072-m Refractor + CCD);
    29.92, 6.5, 4.2' (M. Paradowski, 0.068-m Refractor + CCD; 0.14° tail in p.a. 60 deg);
    29.92, 6.6, 4.2' (M. Paradowski, 0.068-m Refractor + CCD; 0.14° tail in p.a. 60 deg);
    29.91, 6.6, 11.7' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 16.3' tail in p.a. 53 deg);
    29.91, 6.1, 11.7' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 16.7' tail in p.a. 54 deg);
    29.90, 6.5, 4.2' (M. Paradowski, 0.068-m Refractor + CCD; 0.12° tail in p.a. 60 deg);
    29.90, 6.2, 4' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 15x70 Binoculars; 3° tail);
    29.89, 6.8, 5' (V. Díaz, La Romana, Alicante, Spain, 20x80 Binoculars);
    29.89, 6.4, 4' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars; 2° tail);
    29.83, 6.6, 4' (N. Virnina, Odessa, Ukraine, 0.2-m Newtonian);
    29.48, 7.0, 4' (O. Miyazaki, 20x80 Binoculars; 44' tail in p.a. 233 deg);
    28.97, 6.7, 5.4' (M. Collins, Everton, 0.103-m Refractor);
    28.95, 6.8, 3' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    28.94, 6.7, 10.15' (N. James, 0.072-m Refractor + CCD);
    28.93, 7.5, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 22.3' tail in p.a. 60 deg);
    28.92, 6.4, 4' (P. De Schrijver, Beert, 25x100 Binoculars);
    28.85, 6.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    28.83, 7.2, 5' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD; 10' tail);
    27.94, 6.7, 10.53' (N. James, 0.072-m Refractor + CCD);
    27.90, 6.4, 4' (G. Scheerle, 9x63.0 Binoculars);
    26.93, 7.5, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 21' tail in p.a. 53 deg);
    26.87, 6.8, -- (T. Lahtinen, 0.1-m Refractor + CCD; 7' tail in p.a. 51 deg);
    25.95, 6.9, -- (J. Czyz, Erding / Germany, 0.152-m Maksutov);
    25.94, 6.4, 14' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.25° tail in p.a. 46 deg);
    25.93, 7.6, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 21.2' tail in p.a. 52 deg);
    25.92, 6.6, -- (A. Kammerer, Voelkersbach (Black Forest), Germany, 9x63.0 Binoculars);
    25.91, , 2.5' (A. Kammerer, Voelkersbach (Black Forest), Germany, 0.397-m Newtonian);
    25.90, 6.7, 3' (E. Banach, 0.25-m Newtonian);
    25.89, 6.5, 16' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.27° tail in p.a. 39 deg);
    25.88, 7.1, 3.7' (J. Cerny, 25x100 Binoculars; 12.6' tail in p.a. 79 deg);
    25.85, 6.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    24.93, 7.4, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 18.9' tail in p.a. 62 deg);
    24.93, 6.8, 8.65' (N. James, 0.072-m Refractor + CCD);
    24.92, 6.9, 2' (A. Scholten, Eerbeek, 0.2-m Newtonian);
    24.92, 6.4, 16' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.25° tail in p.a. 44 deg);
    24.90, 6.4, 4' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars);
    24.90, 6.2, 4' (J. Gonzalez Suarez, 10x50 Binoculars; 0.4° tail in p.a. 50 deg);
    24.89, 6.5, 15' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.51° tail in p.a. 60 deg);
    23.94, 6.8, 8.27' (N. James, 0.072-m Refractor + CCD);
    23.93, 7.6, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 18.7' tail in p.a. 55 deg);
    23.90, 6.3, 17' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);

37P/Forbes
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 08.75, 16.2, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 124 deg);
    06.92, 17.2, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    06.74, 16.4, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 121 deg);
jun 23.90, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 04.47, 16.2, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
jun 29.80, 16.4, 1.2' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);
    28.96, 16.4, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    26.96, 16.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.96, 16.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    24.96, 16.3, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.96, 16.0, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.92, 17.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

89P/Russell
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.10, 17.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.00, 17.1, 0.3' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 232 deg);
    12.09, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    11.95, 16.9, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    09.95, 16.8, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    07.02, 16.9, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    05.96, 16.8, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 208 deg);

125P/Spacewatch
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 14.10, 17.9, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.07, 17.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.04, 18.0, 0.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    05.70, 17.7, 0.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 1.5' tail in p.a. 255 deg);
    04.11, 17.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.90, 18.2, 0.3' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 242 deg);

130P/McNaught-Hughes
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 17.05, 15.4, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 240 deg);
    16.07, 15.5, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 243 deg);
    14.12, 14.3, 1.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.05, 15.6, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 245 deg);
    12.06, 15.5, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 237 deg);
    11.12, 15.6, 0.55' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    10.13, 14.9, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    09.06, 15.3, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 225 deg);
    07.06, 15.6, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 240 deg);
    07.05, 14.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 2.6' tail in p.a. 250 deg);
    04.13, 13.9, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.14, 14.9, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.07, 16.0, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 237 deg);

144P/Kushida
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jun 29.73, 14.9, 2.7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);

146P/Shoemaker-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.09, 15.2, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    17.17, 15.3, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 232 deg);
    16.08, 15.3, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 234 deg);
    12.08, 15.0, 1' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);

154P/Brewington
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.14, 13.0, 1.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    14.14, 13.3, 1.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    12.14, 13.4, 1.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    04.14, 13.8, 1.2' (J. Ryske, 0.3-m Ritchey-Chretien + CCD);
    02.10, 10.1, 3.5' (J. Gonzalez Suarez, Alto del Castro, 1720 m, Leon, Spain, 0.203-m Schmidt-Cassegrain);

208P/McMillan
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 08.33, 19.7, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);

219P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 12.11, 19.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

251P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.23, 20.8, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);

253P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.32, 18.8, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);

299P/Catalina-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 13.81, 15.5, 0.3' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    12.74, 16.1, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    11.77, 15.6, 0.7' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    08.75, 15.8, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.2' tail in p.a. 125 deg);
    07.00, 16.2, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
jun 28.45, 15.8, 0.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    24.53, 15.9, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

362P
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 02.00, 17.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 24.98, 16.7, 0.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);

468P/SidingSpring
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.32, 19.5, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);

473P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jun 25.92, 17.7, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

479P/Elenin
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 09.84, 14.6, 0.5' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    08.83, 15.8, 0.2' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    07.84, 16.1, 0.2' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.47, 16.1, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    02.87, 16.0, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
jun 29.82, 13.2, 5.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD);

C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 14.43, 15.9, 0.6' (K. Yoshimoto, 0.25-m Newtonian + CCD);

C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.09, 17.8, 4' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    17.06, 16.2, 1' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    17.04, 16.5, 0.4' (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
    10.01, 15.7, 1.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    10.01, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    09.00, 15.6, 1.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.05° tail in p.a. 245 deg);
    06.95, 15.4, 1.1' (P. Dekelver, 0.3-m Newtonian + CCD; 2.6' tail in p.a. 244 deg);
    06.01, 15.5, 1.7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.05° tail in p.a. 247 deg);
    04.06, 16.2, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 30.98, 16.4, 0.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.01, 16.8, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    27.00, 15.6, 0.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    26.00, 15.4, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.09° tail in p.a. 244 deg);
    24.98, 15.7, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    24.03, 16.3, 0.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    23.98, 15.8, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 20.19, 16.3, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);

C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.95, 14.0, 0.9' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    16.04, 14.1, 0.9' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    13.96, 13.9, 1' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    12.11, 14.1, 0.9' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    12.00, 14.1, 1' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    11.04, 14.3, 0.7' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    10.97, 14.0, 1' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    10.07, 14.1, 1' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    08.97, 14.2, 0.8' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    07.12, 14.6, 0.65' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    07.00, 14.3, 0.8' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    06.15, 14.1, 0.6' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.96, 14.9, 0.3' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.13, 14.2, 0.4' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.13, 13.6, 2.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.24° tail in p.a. 18 deg);
    03.99, 14.5, 0.8' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    03.12, 14.2, 0.55' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    01.99, 14.5, 0.7' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    01.96, 14.0, 0.8' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);

C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 12.74, 13.9, 0.7' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    10.85, 14.0, 0.9' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    09.83, 14.1, 0.7' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    09.73, 14.2, 0.9' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 3.3' tail in p.a. 239 deg);
    08.80, 14.3, 0.7' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    07.78, 14.1, 0.9' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    06.82, 13.9, 0.6' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    05.81, 14.1, 1' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.81, 14.1, 0.9' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.46, 13.9, 1.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 227 deg);
    03.78, 13.8, 1.1' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    03.48, 14.0, 1.3' (A. Pearce, 0.05-m Refractor + CCD);
    02.78, 14.5, 0.7' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    02.48, 14.4, 1.4' (A. Pearce, 0.05-m Refractor + CCD);
    01.77, 14.8, 0.65' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
jun 30.77, 13.6, 0.5' (C. Harder, Heimat, Namibia, 0.221-m Newtonian);
    30.48, 13.8, 1.4' (A. Pearce, 0.05-m Refractor + CCD);
    29.78, 14.0, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.05° tail in p.a. 243 deg);
    29.48, 13.7, 1.4' (A. Pearce, 0.05-m Refractor + CCD);
    28.58, 13.8, 1.3' (A. Pearce, 0.05-m Refractor + CCD);
    28.53, 14.3, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    24.48, 14.0, 1.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 20.97, 12.9, 1.5' (M. Mašek, 0.2-m Newtonian + CCD; 1.3' tail in p.a. 208 deg);
    19.98, 13.1, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD);
    16.96, 12.7, 4.4' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.13° tail in p.a. 231 deg);
    16.03, 12.1, -- (M. Paling, Appledorne Observatory, 0.123-m Refractor + CCD);
    14.07, 13.1, 1.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.91, 12.5, 2.4' (E. Bryssinck, 0.4-m Newtonian + CCD);
    10.03, 13.2, 1.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.02, 12.6, 3.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.24° tail in p.a. 244 deg);
    09.96, 12.6, 4.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.14° tail in p.a. 239 deg);
    08.96, 12.4, 5.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.17° tail in p.a. 235 deg);
    08.55, 12.4, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    08.24, 14.2, -- (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD);
    06.97, 12.8, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 19.6' tail in p.a. 257 deg);
    06.87, 15.0, -- (T. Csorgei, Blahová, 0.27-m Schmidt-Cassegrain + CCD);
    06.60, 12.2, 1.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 8' tail in p.a. 240 deg);
    05.96, 13.0, 2.4' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.08° tail in p.a. 240 deg);
    04.09, 12.7, 2.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.96, 12.4, 1.7' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 4.1' tail in p.a. 237 deg);
    01.02, 12.6, 3.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 30.96, 13.0, 1.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.55, 12.2, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    29.28, 14.7, 0.1' (G. Navas, Llano del Hato, Mérida Venezuela, 1-m Cassegrain reflector + CCD);
    29.02, 12.3, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 19.7' tail in p.a. 263 deg);
    27.92, 13.3, 1.2' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 1.4' tail in p.a. 233 deg);
    27.92, 12.7, 1.2' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 1.2' tail in p.a. 229 deg);
    27.04, 12.5, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 19.5' tail in p.a. 261 deg);
    27.01, 12.8, 3.38' (K. Hills, 0.5-m Newtonian + CCD);
    26.04, 12.5, 2.9' (P. Dekelver, 0.3-m Newtonian + CCD; 19.4' tail in p.a. 260 deg);
    25.97, 12.3, 4' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.16° tail in p.a. 256 deg);
    25.93, 13.1, 4' (M. Lošťák, 0.2-m Newtonian + CCD);
    25.02, 12.2, 5.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.18° tail in p.a. 254 deg);
    25.00, 12.6, 2' (P. Dekelver, 0.3-m Newtonian + CCD; 20.1' tail in p.a. 262 deg);
    24.97, 12.2, 4.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.31° tail in p.a. 256 deg);
    24.95, 12.9, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    24.92, 13.1, 4' (M. Lošťák, 0.2-m Newtonian + CCD);
    23.99, 12.2, 4.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.07° tail in p.a. 244 deg);
    23.99, 12.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 19.6' tail in p.a. 265 deg);
    23.94, 12.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);

C/2021 T4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 21.55, 16.3, 0.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 0.8' tail in p.a. 240 deg);

C/2021 X1 (Maury-Attard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 19.16, 17.7, 1.5' (J. Maikner, Comet Hunter Observatory2, New Ringgold, 0.305-m Hyperboloid astro-camera + CCD; 2.5" tail in p.a. 140 deg);
    10.05, 18.3, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2022 L2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 11.73, 16.0, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    08.79, 15.5, 1.4' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 2' tail in p.a. 109 deg);
    08.76, 15.7, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    08.76, 15.7, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    07.76, 16.0, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    06.75, 15.6, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.75, 16.2, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    03.77, 15.2, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    03.48, 15.5, 0.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    02.77, 15.1, 1.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.5' tail in p.a. 98 deg);
    02.77, 15.1, 0.4' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    01.77, 16.2, -- (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);

C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 17.02, 15.8, 0.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 1.1' tail in p.a. 244 deg);
    16.08, 16.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    15.92, 15.7, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    13.99, 16.1, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.7' tail in p.a. 230 deg);
    11.93, 15.9, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.4' tail in p.a. 221 deg);
    10.09, 16.4, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    09.94, 16.1, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.3' tail in p.a. 214 deg);
    09.04, 16.3, 0.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    07.02, 16.1, 0.5' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 221 deg);
    05.95, 16.2, 0.4' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    01.12, 16.6, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.03, 16.1, 0.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1' tail in p.a. 247 deg);
jun 24.03, 16.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);

C/2022 S4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 07.18, 17.4, 0.3' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);

C/2022 U1 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 20.02, 16.1, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.02, 18.0, -- (T. Csorgei, Blahová, 0.27-m Schmidt-Cassegrain + CCD);
    07.01, 16.1, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    01.10, 17.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
jun 26.06, 13.6, 0.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.01, 14.3, 0.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    24.06, 17.6, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    23.97, 17.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);

C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 21.90, 10.3, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 20' tail in p.a. 100 deg);
    21.72, 10.3, 3' (A. Pearce, 0.106-m Refractor + CCD; 20' tail in p.a. 100 deg);
    20.72, 10.3, 3' (A. Pearce, 0.106-m Refractor + CCD; 20.4' tail in p.a. 101 deg);
    19.72, 10.4, 2.5' (A. Pearce, 0.106-m Refractor + CCD; 21.2' tail in p.a. 100 deg);
    18.90, 10.5, 2.5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 23' tail in p.a. 101 deg);
    18.72, 10.4, 2.5' (A. Pearce, 0.106-m Refractor + CCD; 22.9' tail in p.a. 101 deg);
    16.72, 10.4, 2.8' (A. Pearce, 0.106-m Refractor + CCD; 26' tail in p.a. 100 deg);
    16.47, 10.5, 2.6' (A. Pearce, 0.05-m Refractor + CCD; 14.9' tail in p.a. 99 deg);
    15.90, 10.0, 2.5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 23' tail in p.a. 100 deg);
    15.47, 10.6, 2.4' (A. Pearce, 0.05-m Refractor + CCD; 13.9' tail in p.a. 100 deg);
    14.78, 10.1, 2.5' (A. Pearce, 0.106-m Refractor + CCD; 26.5' tail in p.a. 99 deg);
    13.72, 10.0, 2' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 18' tail);
    13.47, 10.5, 2.6' (A. Pearce, 0.05-m Refractor + CCD; 19.3' tail in p.a. 100 deg);
    12.90, 10.0, 2.5' (V. Gonano, Udine, Italy, 20x80 Binoculars; 15° tail in p.a. 100 deg);
    12.72, 10.5, 2.2' (A. Pearce, 0.106-m Refractor + CCD; 15.5' tail in p.a. 101 deg);
    11.74, 10.3, 1.1' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 4.5' tail in p.a. 105 deg);
    11.72, 10.4, 2.8' (A. Pearce, 0.106-m Refractor + CCD; 15.1' tail in p.a. 100 deg);
    10.78, 10.4, 1' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 6.5' tail in p.a. 100 deg);
    10.35, 9.6, 2.5' (C. Wyatt, 0.25-m Newtonian; 18' tail in p.a. 104 deg);
    09.74, 10.4, 1.6' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 11' tail in p.a. 110 deg);
    09.37, 9.7, 2.1' (C. Wyatt, 15x70 Binoculars);
    08.90, 9.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    08.81, 9.6, 6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.38° tail in p.a. 99 deg);
    08.75, 10.1, 1.2' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 14' tail in p.a. 105 deg);
    07.75, 10.0, 1.7' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 12' tail in p.a. 115 deg);
    06.92, 10.0, 4' (J. de Souza Aguiar, 0.27-m Newtonian);
    06.90, 10.5, 2.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    06.75, 10.4, 1.7' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 10' tail in p.a. 100 deg);
    06.38, 9.7, 2' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    05.94, 10.7, 2.3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 15' tail in p.a. 100 deg);
    05.90, 10.4, 2.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.74, 10.4, 1.5' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 12' tail in p.a. 100 deg);
    04.90, 10.7, 2.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    04.79, 10.4, 2' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 12' tail in p.a. 105 deg);
    04.46, 10.9, 2.2' (A. Pearce, 0.05-m Refractor + CCD; 13.3' tail in p.a. 100 deg);
    04.45, 11.4, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5' tail in p.a. 102 deg);
    04.03, 11.9, 0.9' (G. Navas, Llano del Hato, Mérida Venezuela, 1-m Cassegrain reflector + CCD; 210.1" tail);
    03.91, 10.5, 2.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.75, 10.2, 1.8' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 14' tail in p.a. 105 deg);
    03.46, 11.0, 2.2' (A. Pearce, 0.05-m Refractor + CCD; 14.3' tail in p.a. 100 deg);
    02.92, 10.6, 2.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    02.91, 10.0, 4' (J. de Souza Aguiar, 0.27-m Newtonian);
    02.75, 9.7, 7' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.37° tail in p.a. 99 deg);
    02.75, 10.4, 1.6' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 11' tail in p.a. 105 deg);
    02.46, 10.9, 2.4' (A. Pearce, 0.05-m Refractor + CCD; 13.6' tail in p.a. 99 deg);
    02.39, 9.9, 2' (M. Mattiazzo, Swan Hill, Victoria, Australia, 15x70 Binoculars);
    02.19, 9.9, 3.2' (K. Yoshimoto, 0.431-m Newtonian + CCD; 17' tail in p.a. 100 deg);
    01.92, 9.9, 1.7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.15° tail in p.a. 100 deg);
    01.91, 10.6, 3.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.91, 10.1, 4' (J. de Souza Aguiar, 0.27-m Newtonian);
    01.91, 10.1, 2' (C. Labordena, Culla, 0.2-m Schmidt-Cassegrain; 10° tail);
    01.88, 9.8, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars; 0.15° tail in p.a. 100 deg);
    01.74, 10.1, 1.4' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 11' tail in p.a. 110 deg);
    01.52, 9.9, 2' (J. Pile, San Rafael, Bulacan, Philippines, 0.114-m Newtonian);
jun 30.85, 10.9, 1.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    30.74, 10.2, 1.2' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 13' tail in p.a. 100 deg);
    30.46, 11.1, 2.4' (A. Pearce, 0.05-m Refractor + CCD; 14.6' tail in p.a. 99 deg);
    30.02, 12.9, 1.1' (G. Navas, Llano del Hato, Mérida Venezuela, 1-m Cassegrain reflector + CCD; 203.6" tail);
    29.93, 9.8, 3' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars);
    29.75, 10.4, 1.3' (C. Harder, Capricorn, Namibia, 0.221-m Newtonian; 11' tail in p.a. 105 deg);
    29.75, 9.9, 4.6' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.31° tail in p.a. 100 deg);
    29.51, 10.6, 1.6' (O. Miyazaki, 0.32-m Newtonian);
    29.46, 10.8, 2.2' (A. Pearce, 0.05-m Refractor + CCD; 12.8' tail in p.a. 99 deg);
    28.91, 10.0, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 16' tail in p.a. 98 deg);
    28.85, 10.0, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 10' tail in p.a. 100 deg);
    28.82, 10.8, 1.35' (C. Harder, Heimat, Namibia, 0.221-m Newtonian; 12° tail in p.a. 100 deg);
    28.48, 11.4, 1.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 8.2' tail in p.a. 100 deg);
    28.46, 10.9, 2.2' (A. Pearce, 0.05-m Refractor + CCD; 11.4' tail in p.a. 100 deg);
    28.37, 9.9, 2.6' (C. Wyatt, 15x70 Binoculars; 11' tail in p.a. 99 deg);
    27.37, 9.9, 2.1' (C. Wyatt, 15x70 Binoculars; 10' tail in p.a. 99 deg);
    26.92, 10.6, 1.9' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 10.9' tail in p.a. 100 deg);
    26.92, 10.2, 1.9' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 11.2' tail in p.a. 100 deg);
    26.91, 10.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 17.5' tail in p.a. 99 deg);
    26.76, 10.6, 3' (J. Chambó Bris, Hakos, Namibia, 0.106-m Refractor + CCD; 23' tail in p.a. 99 deg);
    26.75, 10.5, 1.2' (C. Harder, Heimat, Namibia, 0.221-m Newtonian; 8' tail in p.a. 100 deg);
    26.48, 10.5, 1.6' (O. Miyazaki, 0.32-m Newtonian; 10' tail in p.a. 110 deg);
    26.37, 9.8, 1.8' (C. Wyatt, 15x70 Binoculars);
    26.36, 10.0, 1.7' (C. Wyatt, 0.25-m Newtonian; 11.5' tail in p.a. 100 deg);
    25.91, 10.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 16.1' tail in p.a. 98 deg);
    25.91, 9.3, -- (T. Lahtinen, Fregenal de la Sierra, Spain, 0.1-m Refractor + CCD; 12' tail in p.a. 100 deg);
    25.88, 10.0, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars; 12' tail in p.a. 100 deg);
    25.87, 10.7, 1.7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.11° tail in p.a. 103 deg);
    25.48, 11.0, 2.1' (A. Pearce, 0.05-m Refractor + CCD; 11.5' tail in p.a. 101 deg);
    24.95, 10.6, 2' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    24.94, 10.1, 1.5' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars);
    24.91, 10.0, 4' (P. Dekelver, 0.3-m Newtonian + CCD; 15.1' tail in p.a. 101 deg);
    24.91, 10.3, 1.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain; 0.15° tail in p.a. 110 deg);
    24.89, 11.2, 2.9' (M. Lošťák, 0.2-m Newtonian + CCD);
    24.87, 10.4, 2.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.13° tail in p.a. 101 deg);
    24.47, 11.2, 1.9' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 7.5' tail in p.a. 101 deg);
    24.46, 10.9, 2.1' (A. Pearce, 0.05-m Refractor + CCD; 11.4' tail in p.a. 100 deg);
    24.38, 9.6, 3' (M. Mattiazzo, Swan Hill, Victoria, 25x100 Binoculars);
    24.36, 10.3, 2.3' (C. Wyatt, 0.25-m Newtonian; 14.5' tail in p.a. 98 deg);
    24.21, 10.7, 2.1' (K. Yoshimoto, 0.431-m Newtonian + CCD; 10' tail in p.a. 100 deg);
    24.21, 9.9, 2.1' (K. Yoshimoto, 0.431-m Newtonian + CCD; 14' tail in p.a. 100 deg);
    24.21, 9.2, 2.1' (K. Yoshimoto, 0.431-m Newtonian + CCD; 14' tail in p.a. 100 deg);
    23.91, 10.5, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    23.91, 10.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 12.8' tail in p.a. 99 deg);
    23.91, 10.1, 3' (J. de Souza Aguiar, 0.27-m Newtonian);
    23.87, 10.2, 3.1' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.18° tail in p.a. 101 deg);
    23.86, 10.1, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars; 14' tail in p.a. 100 deg);
    23.74, 10.0, 4.9' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.26° tail in p.a. 101 deg);
    23.47, 10.9, 2.2' (A. Pearce, 0.05-m Refractor + CCD; 14' tail in p.a. 101 deg);

C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 13.80, 14.0, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    12.73, 14.0, 0.6' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    11.91, 13.6, 0.6' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    10.88, 14.0, 0.6' (C. Harder, Capricorn, Namibia, 0.51-m Newtonian);
    09.82, 13.9, 0.5' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    08.79, 13.8, 0.6' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    08.74, 13.8, 0.7' (A. Pearce, 0.5-m Schmidt-Cassegrain + CCD);
    07.78, 13.8, 0.65' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    06.87, 13.7, 0.8' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    05.80, 13.7, 0.8' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    04.82, 14.4, 0.5' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    03.00, 13.8, 0.5' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    02.79, 13.8, 0.6' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
    01.78, 13.6, 0.5' (C. Harder, Capricorn, Namibia, 0.508-m Newtonian);
jun 30.87, 13.3, 2.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 1.6' tail in p.a. 289 deg);
    24.37, 14.0, 0.3' (C. Wyatt, 0.25-m Newtonian);

C/2023 Q1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.12, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.11, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    06.99, 17.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
jun 29.04, 17.1, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.02, 17.2, 0.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    26.02, 16.7, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.04, 16.2, 0.2' (P. Dekelver, 0.3-m Newtonian + CCD);
    24.04, 17.0, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);

C/2023 V4 (Camarasa-Duszanowicz)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 16.93, 11.9, 6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.08° tail in p.a. 320 deg);
    09.94, 11.7, 4.8' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.16° tail in p.a. 303 deg);
    09.92, 11.7, 5.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.09° tail in p.a. 311 deg);
    08.92, 10.8, 4.5' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    08.91, 11.6, 5.2' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.09° tail in p.a. 290 deg);
    07.91, 11.5, 6.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.12° tail in p.a. 293 deg);
    06.98, 11.3, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.97, 11.1, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.96, 11.5, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.96, 11.4, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.95, 11.2, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.94, 12.1, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD; 5.2' tail in p.a. 292 deg);
    06.94, 11.4, 4.5' (M. Paradowski, Dabrowa, Poland, 0.05-m Camera lens + CCD);
    06.89, 13.2, -- (T. Csorgei, Blahová, 0.27-m Schmidt-Cassegrain + CCD);
    05.95, 10.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    05.92, 11.9, 3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.91, 11.6, 5.1' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.13° tail in p.a. 278 deg);
    03.93, 11.9, 2.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    03.90, 11.8, 2' (G. Pappa, Piemonte,Italy (remote control), 0.11-m Newtonian + CCD);
    02.92, 11.5, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    02.91, 11.3, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    02.91, 11.4, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    01.93, 10.8, 2.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    01.92, 10.7, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
jun 30.94, 12.2, 1.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    30.84, 10.8, 2' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    29.96, 10.6, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    29.95, 10.4, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    29.93, 10.8, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    29.91, 10.6, 2' (P. Pérez Corujo, Vega de San Mateo Gran Canaria, 25x100 Binoculars);
    28.94, 11.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 6.1' tail in p.a. 264 deg);
    28.92, 12.0, 1.1' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 1.5' tail in p.a. 327 deg);
    28.92, 12.1, 1.3' (M. Mašek, 0.25-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 312 deg);
    28.88, 10.9, 3' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    28.84, 11.0, 2' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    26.99, 10.9, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    26.98, 10.7, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    26.96, 11.1, 2.8' (M. Paradowski, 0.068-m Refractor + CCD);
    26.94, 11.5, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    26.89, 11.7, 2.1' (J. Chambó Bris, Nerpio, Spain, 0.25-m Newtonian + CCD; 6.2' tail in p.a. 259 deg);
    25.95, 11.5, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 6.2' tail in p.a. 257 deg);
    25.93, 11.3, 5.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.08° tail in p.a. 257 deg);
    25.91, 11.3, 1' (E. Banach, 0.25-m Newtonian);
    25.90, 10.8, 2' (V. Gonano, Udine, Italy, 20x80 Binoculars);
    24.94, 11.2, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 7.7' tail in p.a. 252 deg);
    24.94, 11.3, 4.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.14° tail in p.a. 262 deg);
    24.93, 11.3, 5.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.13° tail in p.a. 253 deg);
    24.92, 10.7, 2' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    24.21, 12.2, 0.9' (D. Heggie, UDRO, Utah, USA, 0.25-m Hyperboloid astro-camera + CCD; 5' tail in p.a. 259 deg);
    23.94, 11.4, 2.6' (P. Dekelver, 0.3-m Newtonian + CCD; 5.5' tail in p.a. 255 deg);
    23.94, 11.4, 4.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);

C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 09.98, 19.7, 0.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

C/2024 G3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 11.77, 16.5, 0.5' (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD);
    07.83, 17.2, 0.5' (T. Lehmann, Hakos (remote), 0.106-m Refractor + CCD; 0.4' tail in p.a. 118 deg);

P/2012 US27 (Siding Spring)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
jul 05.38, 19.6, 0.2' (M. Mašek, 0.3-m Cassegrain reflector + CCD);