Recent Comet Brightness Estimates

10P/Tempel 2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 01.09, 19.7, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.85, 5.2, -- (M. Collins, Everton, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches);
    18.78, 6.6, 8' (T. Csorgei, Bratislava, SK, 0.12-m Refractor; 20' tail in p.a. 30 deg);
    18.76, 5.3, 4' (G. Pappa, Pedara,Sicily, 0.3-m Camera lens + CCD; 15' tail);
    18.76, 5.2, 7' (V. Gonano, Udine, Italy, 10x50 Binoculars);
    18.76, 5.1, 7' (J. Powichrowski, Knyszyn, 7x50 Binoculars);
    18.46, 5.3, 10' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    18.13, 5.3, 7' (C. Hergenrother, 10x50 Binoculars);
    17.87, 5.3, -- (M. Collins, Everton, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches);
    17.79, 5.7, 6' (T. Csorgei, Bratislava, SK, 0.12-m Refractor);
    17.77, 5.2, 5' (G. Pappa, Pedara,Sicily,Italy, 12x50 Binoculars);
    17.77, 5.5, 4' (G. Pappa, Pedara,Sicily, 0.3-m Camera lens + CCD; 7' tail);
    16.87, 5.1, 5' (B. Granslo, Horten, Norway, 10x42.0 Binoculars);
    16.83, 5.5, 3.8' (V. Kasten, 15x50 Binoculars);
    16.81, 5.7, 7' (C. Harder, Jeersdorf f, 0.1-m Newtonian; 45' tail in p.a. 30 deg);
    16.79, 5.5, 5' (G. Pappa, Pedara,Sicily, 0.3-m Camera lens + CCD; 10' tail);
    16.78, 5.3, 5' (G. Pappa, Pedara,Sicily,Italy, 12x50 Binoculars);
    16.78, 5.5, 6' (U. Pilz, 8x24.0 Binoculars; 0.27° tail in p.a. 30 deg);
    16.71, 5.3, 3' (A. Tsvetkov, Zavolzhye, 0.05-m Monocular 1x);
    16.71, 5.2, 8' (A. Balashov, Nizhny Novgorod, 0.05-m Camera lens + CCD; 12' tail);
    16.46, 5.5, 8' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x; 11.5' tail in p.a. 25 deg);
    16.42, 5.5, 6.5' (O. Miyazaki, 7x50 Binoculars; 65' tail in p.a. 35 deg);
    16.08, 5.6, 6.7' (D. Zubenel, Lenexa, Kansas., 7x50 Binoculars);
    15.83, 5.8, 9.2' (D. Heggie, Aldclune, Perthshire, UK, 0.05-m Refractor + CCD; 0.9° tail in p.a. 26 deg);
    15.81, 5.4, 8' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.15-m Refractor; 35' tail in p.a. 25 deg);
    15.81, 5.5, 3.5' (J. Czyz, Erding / Germany, 25x100 Binoculars; 15' tail in p.a. 20 deg);
    15.81, 5.8, 9.78' (N. James, 0.072-m Refractor + CCD);
    15.79, 5.3, 5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.15-m Refractor);
    15.78, 5.3, 7' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.15-m Refractor);
    15.78, 5.5, 4' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD; 20' tail);
    15.77, 5.5, 4' (S. Shurpakov, 0.07-m Refractor);
    15.76, 5.3, 8' (P. Guzik, 10x42.0 Binoculars; 0.6° tail in p.a. 30 deg);
    15.44, 5.8, 5.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 15' tail in p.a. 10 deg);
    15.44, 5.5, -- (K. Yoshimoto, 8x42.0 Binoculars);
    15.44, 6.4, 8.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 42' tail in p.a. 28 deg);
    15.44, 5.7, 8.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 42' tail in p.a. 28 deg);
    15.42, 5.5, 8.5' (O. Miyazaki, 7x50 Binoculars; 90' tail in p.a. 30 deg);
    14.74, 5.5, 4' (S. Shurpakov, 0.07-m Refractor);
    14.73, 5.7, 4.5' (S. Shurpakov, 8x30 Binoculars);
    14.47, 5.2, 5' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    13.83, 5.5, 5' (A. Balashov, Nizhny Novgorod, 0.5-m Camera lens + CCD; 10' tail);
    13.78, 5.0, -- (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 10x50 Binoculars);
    13.77, 5.1, 5' (V. Gonano, 10x50 Binoculars);
    13.77, 5.1, -- (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 0.12-m Refractor; 22' tail in p.a. 20 deg);
    13.76, 5.8, 4.6' (S. Shurpakov, 0.07-m Refractor);
    13.75, 5.8, 4.9' (S. Shurpakov, 8x30 Binoculars);
    13.46, 5.4, 8' (J. Pile, San Rafael, Bulacan, Philippines, 0.5-m Monocular 1x);
    13.44, 6.0, 5.4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 15' tail in p.a. 14 deg);
    13.44, 5.8, -- (K. Yoshimoto, 8x42.0 Binoculars);
    13.44, 5.8, 8.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 47' tail in p.a. 28 deg);
    13.42, 5.5, 7' (O. Miyazaki, 7x50 Binoculars; 40' tail in p.a. 30 deg);
    13.10, 5.0, 3.5' (S. Aguirre, Hermosillo, Sonora, 0.2-m Schmidt-Cassegrain);
    12.88, &5.3, 8' (D. Hennig, Edmonton, AB Canada, 10x52.0 Binoculars; 1.8° tail in p.a. 21 deg);
    12.81, 5.2, 5' (B. Granslo, Dovre, Norway, 10x42.0 Binoculars; 1.5° tail in p.a. 20 deg);
    11.84, 5.4, 6' (J. Gonzalez Suarez, 10x50 Binoculars; 1.8° tail in p.a. 20 deg);
    11.84, 6.0, 11.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    11.83, 5.3, 5' (J. Gonzalez Suarez, Naked eye);
    11.81, 5.6, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    11.80, 5.5, 7' (J. Navarro Pina, Mirador Cabezo Blanco ( Murcia , Spain ), 20x80 Binoculars);
    11.78, 5.6, 8' (T. Karhula, Virsbo, Sweden, 10x50 Binoculars; 1.3° tail in p.a. 25 deg);
    11.78, 5.6, 10' (M. Meyer, 10x50 Binoculars; 0.3° tail in p.a. 20 deg);
    11.78, 5.3, 5.4' (O. Guthier, 16x70 Binoculars; 0.83° tail in p.a. 20 deg);
    11.78, 6.2, 11.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    11.75, 5.4, 4.9' (S. Shurpakov, 0.07-m Refractor; 45' tail in p.a. 17 deg);
    11.74, 5.8, 5' (S. Shurpakov, 8x30 Binoculars);
    10.82, 5.5, 6' (V. Díaz, La Romana, Alicante, Spain, 20x80 Binoculars; 45' tail in p.a. 18 deg);
    10.81, 5.8, 3.3' (A. Russo, Gibraltar, 15x50 Binoculars);
    10.75, 5.8, 4.5' (S. Shurpakov, 0.07-m Refractor; 37' tail in p.a. 12 deg);
    10.73, 5.9, 4' (S. Shurpakov, 8x30 Binoculars);
    10.46, 6.0, 8' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    10.45, 6.0, 9.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 40' tail in p.a. 23 deg);
    10.44, 5.6, 14' (K. Yoshimoto, 8x42.0 Binoculars; 0.7° tail in p.a. 15 deg);
    10.42, 5.8, 7' (O. Miyazaki, 7x50 Binoculars);
    09.82, 5.7, 4.6' (V. Kasten, 20x80 Binoculars);
    09.78, 5.7, 24' (T. Lehmann, Weimar, 0.068-m Camera lens + CCD; 0.63° tail in p.a. 6 deg);
    09.78, 5.7, 19' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.45° tail in p.a. 359 deg);
    09.78, 5.7, 20' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.47° tail in p.a. 357 deg);
    09.78, 5.7, 8' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.298-m Newtonian; 40' tail in p.a. 28 deg);
    09.77, 5.5, 10' (M. Paradowski, 7x50 Binoculars);
    09.77, 5.9, 6' (M. Kwinta, 15x70 Binoculars; 1.5° tail in p.a. 20 deg);
    09.77, 5.6, 8' (J. Powichrowski, Knyszyn, 7x50 Binoculars);
    09.76, 5.5, 8' (P. Guzik, 10x42.0 Binoculars; 1.5° tail in p.a. 25 deg);
    09.42, 6.0, 7' (O. Miyazaki, 7x50 Binoculars);
    08.84, 5.4, -- (J. Warell, Lysvik, Sweden, 0.006-m Naked eye);
    08.82, 5.6, 4.4' (V. Kasten, 20x80 Binoculars);
    08.82, 5.9, 3.59' (J. Czyz, Erding / Germany, 25x100 Binoculars);
    08.81, 5.6, 5' (C. Labordena, La Serra d Engarcera, 11x80 Binoculars; 40' tail);
    08.81, 5.3, 10.5' (M. Paradowski, Piotrowice Wielkie, Poland, 0.075-m Refractor + CCD; 1° tail in p.a. 20 deg);
    08.81, 5.7, 10' (A. Scholten, Bussloo, 8x56.0 Binoculars);
    08.80, 5.4, 6' (G. van Buitenen, Dordrecht, 11x70 Binoculars; 15' tail in p.a. 25 deg);
    08.80, 5.4, 10.5' (M. Paradowski, Piotrowice Wielkie, Poland, 0.075-m Refractor + CCD; 1° tail in p.a. 20 deg);
    08.79, 5.7, 19' (T. Lehmann, Weimar, 0.068-m Camera lens + CCD; 1° tail in p.a. 358 deg);
    08.79, 7.4, 14.7' (P. Dekelver, 0.3-m Newtonian + CCD; 15.2' tail in p.a. 20 deg);
    08.79, 5.7, 9' (M. Meyer, 10x50 Binoculars);
    08.79, 5.9, 10' (C. Harder, Kirchheim/ Sternwarte, 7x50 Binoculars);
    08.78, 5.4, 4' (U. Pilz, 16x70 Binoculars; 0.28° tail in p.a. 20 deg);
    08.78, 5.9, -- (O. Guthier, 16x70 Binoculars);
    08.78, 5.7, 19' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.6° tail in p.a. 17 deg);
    08.77, 5.4, 10.3' (M. Paradowski, Piotrowice Wielkie, Poland, 0.034-m Camera lens + CCD; 3.1° tail in p.a. 18 deg);
    08.77, 5.5, 10' (M. Paradowski, Piotrowice Wielkie, Poland, 7x50 Binoculars; 1.5° tail in p.a. 20 deg);
    08.77, 5.7, 20' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.54° tail in p.a. 359 deg);
    08.77, 6.0, 6' (M. Kwinta, 15x70 Binoculars; 1.5° tail in p.a. 20 deg);
    08.76, 5.5, 10.3' (M. Paradowski, Piotrowice Wielkie, Poland, 0.034-m Camera lens + CCD; 3.1° tail in p.a. 18 deg);
    08.76, 5.7, 6' (E. Banach, 12x60 Binoculars);
    08.76, 5.5, 8' (P. Guzik, 10x42.0 Binoculars; 1.5° tail in p.a. 20 deg);
    08.76, 5.5, 10' (P. Guzik, Naked eye);
    08.73, 5.7, 11' (J. Powichrowski, Knyszyn, 20x60 Binoculars);
    08.44, 5.8, 7.9' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 30' tail in p.a. 19 deg);
    08.21, 6.7, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 14.8' tail in p.a. 17 deg);
    07.82, 6.6, 4.11' (J. Czyz, Erding / Germany, 25x100 Binoculars; 10.32' tail in p.a. 13 deg);
    07.81, 6.1, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    07.80, 6.0, 5' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    07.80, 5.2, 5' (P. De Schrijver, Beert, 15x80 Binoculars; 8' tail in p.a. 22 deg);
    07.80, 5.8, 4' (V. Kasten, 15x50 Binoculars);
    07.77, 5.8, 4' (S. Shurpakov, 0.07-m Refractor);
    07.77, 5.6, 5' (M. Deconinck, Sisteron France, 0.1-m Refractor; 50' tail in p.a. 20 deg);
    07.76, 6.0, 8' (J. Powichrowski, Knyszyn, 0.35-m Newtonian; 0.27° tail in p.a. 22 deg);
    07.76, 5.8, 10' (M. Paradowski, 7x50 Binoculars);
    07.76, 5.7, 10' (J. Warell, Lindby (K60), 7x50 Binoculars);
    07.75, 5.8, 10' (J. Powichrowski, Knyszyn, 7x50 Binoculars);
    07.73, 5.8, 8' (S. Shurpakov, 8x30 Binoculars);
    07.46, 6.0, 10' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    06.85, 6.1, -- (M. Collins, Everton, 7x50 Binoculars);
    06.85, 6.2, 8' (A. Kammerer, Äkäslompolo (Northern Finland), 9x63.0 Binoculars; 0.4° tail in p.a. 20 deg);
    06.84, 5.7, 5' (B. Granslo, Hakadal, 10x42.0 Binoculars);
    06.81, 6.0, 4' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    06.81, 6.0, 5' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    06.79, 6.2, 5' (C. Harder, Kirchheim/ Sternwarte, 0.298-m Newtonian);
    06.78, 5.5, -- (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 7x50 Binoculars);
    06.78, 5.9, 8' (M. Meyer, 10x50 Binoculars);
    06.78, 7.3, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 14' tail in p.a. 11 deg);
    06.78, 5.5, -- (T. Karhula, Virsbo, Sweden, 0.006-m Naked eye);
    06.77, 5.7, 10' (T. Karhula, Virsbo, Sweden, 10x50 Binoculars; 0.7° tail in p.a. 10 deg);
    06.76, 5.8, 10' (T. Csorgei, Bratislava, SK, 0.12-m Refractor; 15' tail in p.a. 20 deg);
    06.74, 5.5, 12' (J. Powichrowski, Knyszyn, 7x50 Binoculars);
    06.50, 6.5, 5' (J. Xiong, Xingyuan Observatory, Daocheng, China(remote), 0.203-m Newtonian + CCD; 1.5° tail);
    06.21, 7.1, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 13.5' tail in p.a. 11 deg);
    05.85, 6.3, 8' (A. Kammerer, Äkäslompolo (Northern Finland), 9x63.0 Binoculars);
    05.83, 6.3, 10.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.82, 5.7, 5' (J. Gonzalez Suarez, 10x50 Binoculars; 1.2° tail in p.a. 10 deg);
    05.82, 5.7, 5' (C. Labordena, Benlloch, 11x80 Binoculars; 30' tail);
    05.81, 5.8, 9' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    05.81, 6.1, 10.5' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 1.8° tail in p.a. 11 deg);
    05.79, 5.8, -- (O. Guthier, 16x70 Binoculars);
    05.77, 6.5, 9' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.73, 5.9, 7' (A. Novichonok, Shapshezero, light green LP zone (Lorenz, 2022), 10x50 Binoculars; 0.5° tail in p.a. 15 deg);
    05.10, 5.9, 8' (C. Hergenrother, 10x50 Binoculars);
    04.82, 6.5, 5' (V. Bahyl, Julia Observatory, Zvolenská Slatina, Slovakia, Europe, 0.225-m Schmidt-Cassegrain + CCD; 9' tail);
    04.81, 6.0, 9' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    04.80, 5.2, 6' (P. De Schrijver, Beert, 15x80 Binoculars; 9' tail in p.a. 27 deg);
    04.78, 7.5, 12.8' (P. Dekelver, 0.3-m Newtonian + CCD; 13.9' tail in p.a. 14 deg);
    04.78, 6.5, 9.8' (J. Cerny, 25x100 Binoculars; 0.9° tail in p.a. 1 deg);
    04.78, 6.4, 9.8' (J. Cerny, 8x50 Binoculars);
    04.76, 5.8, 10' (T. Csorgei, Bratislava, SK, 10x50 Binoculars);
    04.75, 6.3, 10' (J. Warell, Lindby Observatory (K60), Skurup, Sweden, 7x50 Binoculars);
    04.46, 5.8, 12' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    04.13, 6.1, 8' (C. Hergenrother, 10x50 Binoculars);
    03.93, 6.5, 10' (A. Kammerer, Äkäslompolo (Northern Finland), 9x63.0 Binoculars);
    03.86, 5.8, -- (M. Collins, Everton, 0.05-m "small telescopes and finders" with aperture not exceeding 4 inches);
    03.82, 6.0, 4' (V. Díaz, La Romana, Alicante, Spain, 20x80 Binoculars; 18' tail in p.a. 10 deg);
    03.81, 6.5, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    03.80, 5.7, 10' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    03.78, 5.9, 20' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.74° tail in p.a. 352 deg);
    03.77, 5.6, 12' (G. Scheerle, 9x63.0 Binoculars);
    03.77, 6.1, 8' (M. Meyer, 10x50 Binoculars);
    03.77, 5.8, 10' (P. Guzik, 10x42.0 Binoculars; 1.2° tail in p.a. 15 deg);
    03.77, 5.8, 8' (G. Scheerle, 0.235-m Schmidt-Cassegrain; 0.18° tail in p.a. 45 deg);
    03.76, 6.0, 8' (V. Gonano, 10x50 Binoculars);
    03.76, 6.0, 10' (T. Csorgei, Bratislava, SK, 10x60 Binoculars);
    03.46, 5.9, 10' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    03.42, 6.4, 5.4' (O. Miyazaki, 20x80 Binoculars; 36' tail in p.a. 25 deg);
    02.86, 5.6, 10' (A. Scholten, Eerbeek, 8x56.0 Binoculars);
    02.82, 6.3, 6.3' (J. Czyz, Erding / Germany, 25x100 Binoculars);
    02.81, 5.8, 4' (V. Kasten, 15x50 Binoculars);
    02.81, 6.3, 10.7' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    02.78, 5.8, 21' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.66° tail in p.a. 346 deg);
    02.46, 6.1, 9' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    02.40, 5.7, 12' (K. Yoshimoto, 8x42.0 Binoculars; 0.5° tail in p.a. 10 deg);
    01.84, 5.6, 10' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    01.82, 6.0, 10.1' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    01.79, 5.9, 4.5' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 40x126.0 Binoculars; 1° tail in p.a. 25 deg);
    01.78, 6.0, 7.71' (N. James, 0.072-m Refractor + CCD);
    01.77, 6.0, 8' (V. Gonano, 10x50 Binoculars);
    01.46, 6.5, 8' (J. Pile, San Rafael, Bulacan, Philippines, 0.05-m Monocular 1x);
    01.13, 6.0, 8' (C. Hergenrother, 10x50 Binoculars);
feb 29.87, 6.1, 11.3' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    29.83, 6.1, 10' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.82, 6.9, 4.01' (J. Czyz, Erding / Germany, 25x100 Binoculars);
    29.82, 5.7, 10' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 30' tail in p.a. 15 deg);
    29.81, 6.6, 5' (C. Labordena, 11x80 Binoculars; 8' tail);
    29.80, 5.7, 14' (J. Chambó Bris, Valles, Valencia, Spain, 0.2-m Newtonian + CCD; 0.8° tail in p.a. 11 deg);
    29.80, 6.7, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    29.78, 5.9, 9' (M. Meyer, 10x50 Binoculars);
    29.77, 5.9, 20' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.49° tail in p.a. 356 deg);
    29.76, 5.8, 6' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    29.08, 5.9, 5.5' (D. Zubenel, Pottawatomie State Lake # 1, Pottawatomie County, Kansas., 0.108-m Newtonian; 7' tail);
    28.81, 6.0, 7.6' (J. Chambó Bris, Benali, Valencia, Spain, 20x60 Binoculars);
    28.81, 6.6, 5' (C. Labordena, Benlloch, 11x80 Binoculars; 8' tail in p.a. 19 deg);
    28.81, 6.8, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    28.80, 7.2, 8' (J. Navarro Pina, Mirador Cabezo Blanco ( Murcia , Spain ), 20x80 Binoculars);
    28.78, 6.4, -- (N. Novikov, Russia, d. Enaberdino, 0.253-m Newtonian);
    28.77, 6.0, 34' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.62° tail in p.a. 344 deg);
    28.41, 6.9, 5.6' (O. Miyazaki, 20x80 Binoculars; 24' tail in p.a. 25 deg);
    27.83, 6.7, 10.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.81, 6.9, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    27.78, 8.1, 11' (P. Dekelver, 0.3-m Newtonian + CCD; 13.9' tail in p.a. 13 deg);
    27.43, 7.0, 3.5' (O. Miyazaki, 20x80 Binoculars);
    26.86, 6.9, 5' (J. Shanklin, 20x80 Binoculars);
    26.83, 6.9, 10.7' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.82, 6.7, 10.72' (N. James, 0.072-m Refractor + CCD);
    26.82, 7.1, 5.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 9.4' tail in p.a. 18 deg);
    26.80, 7.0, -- (A. Russo, Gibraltar, 15x50 Binoculars);
    26.75, 6.5, 8' (P. Guzik, 10x42.0 Binoculars);
    26.45, 6.8, 3.2' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    26.44, 7.2, 7.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    26.44, 6.6, 7.3' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD; 50' tail in p.a. 8 deg);
    26.42, 6.7, 7' (K. Yoshimoto, 20x100 Binoculars; 20' tail in p.a. 10 deg);
    25.82, 6.5, 7' (V. Díaz, Elche ciudad, 20x80 Binoculars);
    25.80, 6.0, 13.3' (J. Czyz, Erding / Germany, 25x100 Binoculars; 22.46' tail in p.a. 342 deg);
    25.80, 6.5, 5.4' (V. Kasten, 20x80 Binoculars);
    25.80, 6.2, 7' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    25.79, 6.4, 17' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.59° tail in p.a. 346 deg);
    25.78, 7.0, 5' (G. Pappa, Pedara,Sicily,Italy, 0.3-m Camera lens + CCD);
    25.78, 6.3, 10' (V. Kasten, 15x50 Binoculars);
    25.78, 6.7, 9' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    25.77, 6.4, 20' (S. Fritsche, Soerth, 0.1-m Refractor + CCD; 0.56° tail in p.a. 353 deg);
    25.76, 6.0, 8' (U. Pilz, 7x50 Binoculars);
    25.74, 6.8, 6' (E. Banach, 0.25-m Newtonian);
    25.65, 7.0, 5' (N. Novikov, Russia, d. Enaberdino, 0.254-m Newtonian; 3' tail);
    24.80, 7.1, 6' (C. Labordena, Benlloch, 11x80 Binoculars);
    24.78, 6.7, 10.4' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    24.78, 6.5, 17' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.73° tail in p.a. 352 deg);
    24.76, 6.5, 16' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.66° tail in p.a. 352 deg);
    24.75, 6.4, 16' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.38° tail in p.a. 356 deg);
    23.80, 7.0, 6' (V. Díaz, Elche ciudad, 20x80 Binoculars);
    23.79, 6.2, 7' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    23.79, 6.2, 10' (G. Scheerle, 9x63.0 Binoculars);
    23.79, 7.0, 9.8' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    23.78, 6.8, 6' (M. Deconinck, Artignosc-sur-Verdon, Provence, France, 25x126.0 Binoculars; 5' tail in p.a. 10 deg);
    23.77, 6.6, 13' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    22.79, 6.9, 10.7' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    22.16, 6.9, 6' (P. Guzik, 10x42.0 Binoculars);
    21.83, 7.1, 10.7' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    21.80, 6.1, 7.3' (D. Heggie, East Lothian,UK, 0.25-m Ritchey-Chretien + CCD; 8' tail in p.a. 9 deg);
    20.80, 7.4, 7.5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 28' tail in p.a. 13 deg);
    19.82, 7.4, 8' (V. Gonano, Udine, Italy, 10x50 Binoculars; 8.3' tail in p.a. 5 deg);
    19.80, 7.4, 7.5' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD; 29' tail in p.a. 12 deg);
    19.12, 6.9, 9' (K. Yoshimoto, 0.431-m Newtonian + CCD);
    19.12, 6.8, 12.5' (K. Yoshimoto, 0.431-m Newtonian + CCD; 17' tail in p.a. 8 deg);
    19.06, 7.3, 3.1' (D. Zubenel, De Soto, Kansas., 0.152-m Newtonian);
    18.84, 7.3, 9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    18.82, 7.4, 5.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain; 7.3' tail in p.a. 16 deg);
    18.79, 7.4, 9.8' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    18.78, 6.3, 4' (J. Shanklin, 20x80 Binoculars);

13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.77, 11.5, 1' (G. Pappa, Pedara,Sicily, 0.3-m Camera lens + CCD);
    16.81, 11.5, 0.8' (C. Harder, Jeersdorf f, 0.296-m Newtonian);
    15.45, 11.4, 1.3' (O. Miyazaki, 0.32-m Newtonian);
    13.44, 12.5, 1' (O. Miyazaki, 0.32-m Newtonian);
    12.41, 11.1, 3.3' (C. Wyatt, 0.4-m Newtonian);
    11.87, 11.1, 4.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.48, 11.3, 4' (K. Yoshimoto, 0.203-m Ritchey-Chretien + CCD);
    10.44, 11.8, 2' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    09.81, 10.9, 9.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    09.79, 11.9, 0.9' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    08.79, 11.9, 1.4' (T. Karhula, Lysvik, Sweden, 0.305-m Newtonian);
    08.79, 11.8, 1.5' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    08.78, 11.6, 2' (P. Guzik, 0.326-m Newtonian);
    08.78, 11.4, 2' (M. Meyer, 0.254-m Newtonian);
    07.80, 10.8, 9.1' (T. Lehmann, Hakos (remote), 0.2-m Newtonian + CCD);
    07.80, 12.2, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    07.41, 11.3, 3.2' (C. Wyatt, 0.4-m Newtonian);
    06.87, 11.3, 4.32' (K. Hills, 0.5-m Newtonian + CCD);
    06.79, 12.4, 0.6' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    05.84, 10.9, 3.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    05.41, 11.4, 3.4' (C. Wyatt, 0.4-m Newtonian);
    04.04, 11.7, 4.9' (K. Yoshimoto, 0.25-m Newtonian + CCD);
    03.78, 12.0, 1.5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    02.84, 11.4, 6.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.05° tail in p.a. 96 deg);
feb 29.82, 11.8, 4.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.43, 12.9, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    25.82, 11.4, 9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    25.81, 11.8, 6.2' (S. Fritsche, Soerth, 0.1-m Refractor + CCD);
    25.79, 12.6, 1.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    20.52, 14.0, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

26P/Grigg-Skjellerup
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb 18.44, 17.1, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 15.86, 13.1, 3.4' (D. Heggie, ASERO, Trevinca, Spain, 0.303-m Newtonian + CCD);
    14.92, 11.8, 5.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    13.92, 13.1, 3.57' (K. Hills, 0.5-m Newtonian + CCD);
    13.89, 14.6, 0.4' (D. Heggie, Edinburgh, UK, 0.13-m Newtonian + CCD);
    12.89, 12.9, 2.2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    11.85, 12.3, 5.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    10.01, 11.6, 9.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    09.97, 12.7, 4.51' (K. Hills, 0.5-m Newtonian + CCD);
    09.83, 14.7, 0.6' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    08.97, 13.3, 1.2' (W. Kutschera, 0.508-m Newtonian);
    08.87, 12.8, 2.9' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.82, 12.8, 2' (P. Guzik, 0.326-m Newtonian);
    07.93, 16.1, 0.89' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    07.90, 11.8, 5.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.96, 13.7, 2.63' (K. Hills, 0.5-m Newtonian + CCD);
    06.81, 13.8, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.01, 12.2, 5.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.47, 14.9, 0.5' (C. Wyatt, 0.4-m Newtonian);
    04.98, 13.1, 3.38' (K. Hills, 0.5-m Newtonian + CCD);
    04.88, 13.4, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.02, 11.2, 5.7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    03.92, 13.3, 5.5' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.59, 13.2, 1' (O. Miyazaki, 0.32-m Newtonian);
    02.99, 11.5, 11' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    02.82, 14.8, 0.8' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    01.86, 10.8, 11' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
feb 29.94, 11.8, 2.2' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    29.90, 11.0, 11.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.84, 13.8, 2' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    29.02, 11.7, 7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    28.87, 14.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.86, 12.4, 1.8' (W. Kutschera, 0.508-m Newtonian);
    27.86, 12.0, 5.5' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    27.82, 12.5, 3.1' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    27.80, 14.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    26.93, 12.7, 2.44' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    26.87, 12.9, 3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.87, 14.2, 1.6' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    24.82, 13.6, 2.2' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    23.90, 14.3, 1.9' (D. Heggie, Aldclune, Perthshire, UK, 0.05-m Refractor + CCD);
    22.90, 14.4, 0.7' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    20.81, 12.9, 2.9' (D. Heggie, Edinburgh, UK, 0.05-m Refractor + CCD);
    18.89, 12.7, 2.44' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    18.86, 12.3, 4.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

32P/Comas Sola
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 13.80, 15.4, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 1' tail in p.a. 83 deg);
    12.40, 14.1, 0.6' (C. Wyatt, 0.4-m Newtonian);
    11.80, 15.5, 0.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    08.83, 14.0, 1.5' (M. Paradowski, Piotrowice Wielkie, Poland, 0.075-m Refractor + CCD);
    08.82, 14.2, 1.5' (M. Paradowski, Piotrowice Wielkie, Poland, 0.075-m Refractor + CCD);
    08.82, 14.2, 2.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 89 deg);
    08.79, 14.4, 0.8' (P. Guzik, 0.326-m Newtonian);
    07.83, 14.5, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    06.74, 15.6, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
feb 29.85, 14.4, 1.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 85 deg);
    28.81, 13.9, 2.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 2' tail in p.a. 88 deg);
    26.80, 15.4, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    24.82, 14.4, 1.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.07° tail in p.a. 85 deg);
    18.82, 15.4, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);

44P/Reinmuth
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.04, 20.0, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

62P/Tsuchinshan
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.58, 11.8, 3.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5' tail in p.a. 285 deg);
    16.67, 11.7, 3.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5.5' tail in p.a. 286 deg);
    16.19, 10.3, 9.02' (K. Hills, 0.5-m Newtonian + CCD);
    15.66, 11.7, 3.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5.6' tail in p.a. 294 deg);
    13.53, 11.8, 2.1' (O. Miyazaki, 0.32-m Newtonian);
    12.87, 11.6, 2.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    12.64, 11.4, 3.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 6.5' tail in p.a. 287 deg);
    12.47, 10.5, 4.6' (C. Wyatt, 0.4-m Newtonian);
    11.99, 10.0, 7.1' (W. Kutschera, 0.12-m Refractor);
    11.91, 10.3, 9.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    11.10, 10.0, 9.96' (K. Hills, 0.5-m Newtonian + CCD);
    10.79, 12.2, 1.2' (O. Miyazaki, 0.32-m Newtonian);
    10.04, 9.4, 19' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.41° tail in p.a. 289 deg);
    09.92, 11.0, 3' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    09.79, 11.1, 4.3' (O. Miyazaki, 0.32-m Newtonian);
    09.61, 11.4, 3.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 6.7' tail in p.a. 286 deg);
    09.00, 9.6, 8' (P. Guzik, 25x100 Binoculars);
    08.98, 11.8, 1.5' (M. Filipek, 0.4-m Newtonian);
    08.96, 9.4, 18' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.7° tail in p.a. 291 deg);
    08.93, 11.3, 3.5' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    08.88, 10.8, -- (G. Pappa, Namibia (remote control), 0.106-m Refractor + CCD; 10' tail);
    08.79, 12.0, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    08.59, 11.8, 2.3' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    08.15, 10.0, 4.5' (M. Meyer, 0.152-m Refractor);
    08.09, 11.0, 2.5' (E. Banach, 0.25-m Newtonian);
    08.07, 10.7, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    08.06, 10.8, 7.3' (P. Dekelver, 0.3-m Newtonian + CCD; 22.4' tail in p.a. 296 deg);
    07.93, 10.9, 3' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    07.90, 11.7, 3.5' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    07.47, 10.0, 5.1' (C. Wyatt, 0.4-m Newtonian);
    06.97, 11.3, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 21.8' tail in p.a. 295 deg);
    06.05, 9.4, 14.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.94, 11.5, 3' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.51, 10.0, 7' (C. Wyatt, 0.4-m Newtonian);
    05.03, 11.1, 2' (M. Kwinta, 0.3-m Newtonian);
    04.63, 11.3, 4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5.9' tail in p.a. 288 deg);
    04.12, 10.9, 2' (M. Kwinta, 0.3-m Newtonian);
    04.11, 9.0, 22' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.37° tail in p.a. 285 deg);
    04.07, 11.0, 4' (E. Banach, 0.25-m Newtonian);
    04.04, 10.9, 9.2' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.99, 9.8, 7.6' (W. Kutschera, 0.25-m Newtonian);
    03.92, 10.0, 5' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    03.60, 11.3, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    03.18, 9.8, 8.84' (K. Hills, 0.5-m Newtonian + CCD);
    03.03, 9.0, 24' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.22° tail in p.a. 288 deg);
feb 29.99, 9.2, 20' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.52° tail in p.a. 292 deg);
    29.98, 10.2, 7' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    29.96, 9.9, 9.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.06, 9.7, 9.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.13° tail in p.a. 298 deg);
    29.03, 11.3, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 14.8' tail in p.a. 288 deg);
    27.96, 11.1, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 7.9' tail in p.a. 294 deg);
    25.01, 8.9, 22' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.38° tail in p.a. 290 deg);
    21.21, 8.8, 19' (T. Lehmann, Nerpio (remote), 0.25-m Newtonian + CCD; 0.25° tail in p.a. 289 deg);
    20.67, 11.1, 3.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    20.17, 10.1, 5.45' (K. Hills, 0.5-m Newtonian + CCD);

65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.15, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    08.08, 16.6, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.99, 16.6, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.14, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
feb 29.05, 16.5, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);

103P/Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.03, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    11.92, 12.7, 1.3' (W. Kutschera, 0.508-m Newtonian);
    09.89, 15.3, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    09.50, 17.0, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.04, 16.5, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.59, 16.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    06.92, 16.8, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.59, 16.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.93, 17.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    05.58, 16.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    04.58, 16.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    03.81, 13.2, 0.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    01.54, 16.5, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
feb 29.92, 12.8, 1' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    29.90, 14.4, 2.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.99, 16.1, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.88, 15.5, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.52, 15.9, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    20.57, 15.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

121P/Shoemaker-Holt
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb 20.03, 19.8, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

144P/Kushida
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 13.85, 13.7, 1.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    13.45, 11.6, 2.5' (O. Miyazaki, 0.32-m Newtonian);
    13.15, [10.3, -- (S. Aguirre, Hermosillo, Sonora, 0.2-m Schmidt-Cassegrain);
    12.88, 12.6, 2.2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    12.42, 10.1, 4.5' (C. Wyatt, 0.4-m Newtonian);
    11.89, 10.0, 7.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    11.87, 9.9, 5.2' (W. Kutschera, 0.08-m Refractor);
    11.84, 13.8, 1.22' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    11.79, 10.0, 5.5' (M. Meyer, 0.152-m Refractor);
    11.54, 11.1, 3.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    10.54, 10.5, 3.4' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    10.53, 11.6, 2.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    10.52, 10.8, 3.6' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    10.20, 10.1, 4' (C. Hergenrother, Tanque Verde, Arizona, 30x125.0 Binoculars);
    09.93, 9.4, 12' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    09.81, 9.8, 5.5' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.298-m Newtonian);
    09.53, 11.6, 2.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.45, 11.4, 2' (O. Miyazaki, 0.32-m Newtonian);
    08.89, 9.7, 13' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    08.86, 10.2, 4.2' (W. Kutschera, 0.12-m Refractor);
    08.81, 10.5, 5' (P. Guzik, 0.326-m Newtonian);
    08.81, 10.1, 3.5' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.298-m Newtonian);
    08.80, 10.2, 4' (M. Meyer, 0.254-m Newtonian);
    08.80, 10.4, 4' (E. Banach, 0.25-m Newtonian);
    08.79, 10.3, 1.5' (M. Kwinta, 0.3-m Newtonian);
    07.87, 10.5, 3.76' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    07.83, 13.4, 1.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    07.78, 11.1, 2.3' (J. Powichrowski, Knyszyn, 0.35-m Newtonian);
    07.53, 11.9, 2.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.43, 10.0, 2.9' (C. Wyatt, 0.4-m Newtonian);
    06.89, 10.8, 2.3' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    06.83, 10.4, 4.51' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    06.82, 13.6, 1.45' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    06.81, 9.5, 4' (C. Harder, Kirchheim/ Sternwarte, 0.298-m Newtonian);
    06.80, 9.6, 5' (M. Meyer, 0.152-m Refractor);
    06.53, 11.9, 2.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.94, 10.4, 1.5' (M. Filipek, 0.25-m Newtonian);
    05.92, 10.2, 1.5' (M. Kwinta, 0.3-m Newtonian);
    05.92, 12.1, 2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.91, 11.5, 2.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.89, 9.6, 7.71' (K. Hills, 0.5-m Newtonian + CCD);
    05.86, 9.7, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain);
    05.52, 11.4, 3.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.42, 9.7, 4.5' (C. Wyatt, 0.4-m Newtonian);
    03.87, 10.7, 6.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.87, 10.9, 2.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    03.86, 9.6, 5' (C. Harder, Kirchheim/ Sternwarte, 0.298-m Newtonian);
    03.80, 9.8, 5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    03.78, 9.2, 5.5' (M. Meyer, 0.152-m Refractor);
    03.57, 11.1, 1.5' (O. Miyazaki, 0.32-m Newtonian);
    03.51, 11.7, 2.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    02.92, 10.4, 2.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    02.91, 10.8, 6' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    02.90, 9.4, 18' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    02.88, 9.5, 16' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    02.86, 10.6, 3.01' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    02.79, 9.8, 6' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    01.55, 11.4, 2.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
feb 29.87, 11.2, 2.5' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    29.87, 9.4, 17' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    29.79, 9.8, 5' (M. Meyer, 0.152-m Refractor);
    28.92, 11.3, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.85, 9.4, 15' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    28.77, 9.4, -- (U. Pilz, 16x70 Binoculars);
    28.48, 10.2, 4' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    28.44, 11.0, 1.8' (O. Miyazaki, 0.32-m Newtonian);
    27.82, 11.4, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.45, 10.9, 2.7' (O. Miyazaki, 0.32-m Newtonian);
    26.85, 9.4, 13.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    26.84, 10.1, 2.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain);
    25.89, 9.5, 15' (S. Fritsche, Soerth, 0.1-m Refractor + CCD);
    25.81, 11.4, 2.4' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    24.87, 9.4, 16' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    23.84, 11.0, 3' (G. Scheerle, 0.235-m Schmidt-Cassegrain);
    19.93, 11.5, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    18.84, 10.7, 2.63' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);

150P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 13.94, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    08.81, 16.5, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.99, 17.2, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.91, 16.9, 0.7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
feb 29.92, 15.8, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    29.01, 15.5, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    27.93, 16.2, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);

170P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 06.85, 18.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

207P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.62, 15.9, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.60, 15.5, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    15.60, 15.6, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    14.99, 15.1, 0.94' (K. Hills, 0.5-m Newtonian + CCD);
    11.57, 15.5, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.79, 14.6, 1.2' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    08.57, 15.7, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.95, 15.2, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.51, 15.3, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    06.85, 14.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    05.58, 14.7, 0.9' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.53, 13.6, 2.7' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.08° tail in p.a. 76 deg);
    05.48, 14.7, 0.5' (C. Wyatt, 0.4-m Newtonian);
    04.92, 15.2, 0.3' (P. Dekelver, 0.3-m Newtonian + CCD);
    04.91, 14.5, 1.13' (K. Hills, 0.5-m Newtonian + CCD);
    04.58, 14.7, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    03.76, 14.0, 1.7' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
feb 26.52, 14.5, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    20.53, 15.1, 0.9' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

216P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 03.17, 18.9, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
feb 20.24, 18.4, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

226P/Pigott-LINEAR-Kowalski
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 09.81, 15.1, 2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    02.82, 14.8, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

227P/Catalina-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 08.93, 15.2, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.6' tail in p.a. 128 deg);
    08.03, 15.1, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    08.02, 15.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 1.1' tail in p.a. 131 deg);
    06.88, 15.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 0.6' tail in p.a. 130 deg);
    05.99, 14.7, 0.5' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 1' tail in p.a. 122 deg);
    05.94, 15.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    04.94, 15.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 0.4' tail in p.a. 131 deg);
    04.07, 15.3, 1.1' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.4' tail in p.a. 128 deg);
    03.99, 14.9, 0.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.06, 15.4, 0.9' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.4' tail in p.a. 126 deg);
    02.94, 15.1, 0.38' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    02.94, 14.6, 2.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
feb 28.98, 15.3, 1' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    28.94, 15.0, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD; 0.5' tail in p.a. 134 deg);
    27.87, 14.9, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);

234P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 04.92, 17.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

244P/Scotti
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.10, 19.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

433P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 08.04, 19.7, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

473P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 09.80, 13.0, 0.8' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    08.78, 12.8, 4' (M. Paradowski, Piotrowice Wielkie, Poland, 0.034-m Camera lens + CCD);
    08.77, 12.7, 4' (M. Paradowski, Piotrowice Wielkie, Poland, 0.034-m Camera lens + CCD);
    08.77, 13.0, 1.5' (P. Guzik, 0.326-m Newtonian);
    08.76, 12.5, 6.6' (M. Paradowski, Piotrowice Wielkie, Poland, 0.034-m Camera lens + CCD);
feb 29.79, 12.5, 4.5' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

475P/Spacewatch-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb 20.18, 18.6, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

479P/Elenin
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.49, 15.4, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.59, 15.4, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    15.59, 15.5, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    12.67, 14.8, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    11.50, 15.0, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    10.57, 14.8, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.85, 12.2, 6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    09.57, 15.6, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.86, 12.2, 6.6' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    08.57, 15.8, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.97, 14.9, 0.4' (P. Dekelver, 0.3-m Newtonian + CCD);
    07.96, 14.9, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    07.93, 11.6, 8.4' (T. Lehmann, Hakos (remote), 0.2-m Newtonian + CCD);
    07.52, 15.4, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    06.90, 15.1, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.51, 15.6, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.52, 15.0, 0.5' (C. Wyatt, 0.4-m Newtonian);
    03.96, 14.3, 1.6' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.94, 12.6, 4.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
feb 29.94, 12.7, 5.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);
    28.96, 15.2, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    28.89, 13.1, 3.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD);
    27.89, 15.1, 0.6' (P. Dekelver, 0.3-m Newtonian + CCD);
    25.93, 15.2, 0.9' (S. Fritsche, Soerth, 0.1-m Refractor + CCD; 0.7' tail in p.a. 82 deg);
    25.92, 12.9, 4.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 04.54, 15.3, 2.5' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD);

C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.52, 14.6, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    12.43, 13.8, 0.9' (C. Wyatt, 0.4-m Newtonian);
    11.51, 14.3, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    10.47, 13.8, 1' (Y. Yamaguchi, 0.076-m Refractor + CCD);
    09.84, 13.6, 2.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.35° tail in p.a. 181 deg);
    09.81, 13.5, 1' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    09.52, 14.2, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.84, 13.1, 1.2' (W. Kutschera, 0.508-m Newtonian);
    08.82, 14.1, 0.7' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    08.80, 13.5, 1' (P. Guzik, 0.326-m Newtonian);
    07.86, 14.2, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    07.51, 14.1, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.42, 13.8, 0.4' (C. Wyatt, 0.4-m Newtonian);
    06.79, 15.1, 0.55' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    06.53, 14.2, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.88, 14.5, 0.75' (K. Hills, 0.5-m Newtonian + CCD);
    05.85, 13.7, 1.2' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD);
    05.52, 13.9, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 0.5' tail in p.a. 128 deg);
    05.47, 13.1, 1.4' (C. Wyatt, 0.4-m Newtonian);
    03.87, 12.7, 0.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    03.84, 14.0, 2.4' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.83, 13.5, 3.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 1.9' tail in p.a. 172 deg);
    02.87, 13.7, 0.9' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
feb 28.48, 12.7, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    27.90, 13.8, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    25.88, 13.4, 2.9' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.23° tail in p.a. 179 deg);
    25.85, 13.4, 3.2' (S. Fritsche, Soerth, 0.1-m Refractor + CCD);
    18.85, 13.4, 0.94' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);

C/2019 L3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 07.98, 13.7, 2.9' (T. Lehmann, Hakos (remote), 0.2-m Newtonian + CCD);

C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 07.08, 15.4, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.16, 15.5, 1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
feb 25.16, 15.1, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.15° tail in p.a. 252 deg);

C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.50, 14.5, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.50, 15.0, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    12.46, 14.6, 0.4' (C. Wyatt, 0.4-m Newtonian);
    11.51, 15.0, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    10.50, 14.6, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.51, 14.6, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.57, 14.8, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.46, 14.3, 0.5' (C. Wyatt, 0.4-m Newtonian);
    06.51, 14.9, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.50, 14.3, 0.4' (C. Wyatt, 0.4-m Newtonian);
feb 22.59, 14.0, 1.5' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.12° tail in p.a. 64 deg);

C/2020 F2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 10.08, 18.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    03.20, 18.7, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.51, 15.1, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 192 deg);
    16.50, 15.4, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    12.45, 15.1, 0.5' (C. Wyatt, 0.4-m Newtonian);
    11.51, 15.0, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.8' tail in p.a. 196 deg);
    10.50, 15.7, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.52, 15.1, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.52, 14.7, 1.6' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.1° tail in p.a. 201 deg);
    08.56, 15.4, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.51, 14.9, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.9' tail in p.a. 192 deg);
    07.44, 15.0, 0.6' (C. Wyatt, 0.4-m Newtonian);
    06.52, 15.0, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.6' tail in p.a. 197 deg);
    05.54, 14.9, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 2.6' tail in p.a. 207 deg);
    05.49, 15.3, 0.4' (C. Wyatt, 0.4-m Newtonian);
    04.56, 14.7, 1.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
feb 22.55, 14.4, 1.8' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.12° tail in p.a. 203 deg);

C/2020 R7 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 15.25, 19.5, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 05.40, 13.1, 1.1' (C. Wyatt, 0.4-m Newtonian);

C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.54, 14.3, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.51, 14.2, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    12.46, 14.0, 1' (C. Wyatt, 0.4-m Newtonian);
    11.52, 14.1, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 274 deg);
    10.51, 14.4, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.54, 14.1, 1.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    08.58, 14.3, 0.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    07.53, 14.2, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 271 deg);
    07.45, 13.7, 0.8' (C. Wyatt, 0.4-m Newtonian);
    06.54, 14.3, 0.8' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.65, 13.9, 1.9' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.09° tail in p.a. 265 deg);
    05.57, 14.3, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 274 deg);
    05.51, 14.3, 0.5' (C. Wyatt, 0.4-m Newtonian);
    04.59, 14.7, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    01.56, 14.1, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 269 deg);
feb 21.80, 14.2, 1.2' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.09° tail in p.a. 263 deg);
    21.61, 14.4, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    20.60, 14.7, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.84, 10.7, 1.9' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5.7' tail in p.a. 250 deg);
    17.18, 9.7, 2' (M. Meyer, 0.152-m Refractor);
    16.84, 10.7, 2.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 6.7' tail in p.a. 248 deg);
    16.81, 10.6, 2.1' (O. Miyazaki, 0.32-m Newtonian; 3.5' tail in p.a. 260 deg);
    14.85, 9.8, 1.8' (J. Pile, San Rafael, Bulacan, Philippines, 0.114-m Newtonian);
    13.81, 10.6, 2.3' (O. Miyazaki, 0.32-m Newtonian);
    10.81, 10.1, 1.7' (O. Miyazaki, 0.32-m Newtonian);
    09.83, 9.9, 2.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 6.6' tail in p.a. 245 deg);
    09.81, 11.2, 1.7' (O. Miyazaki, 0.32-m Newtonian);
    09.09, 10.0, 1.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian; 5' tail in p.a. 280 deg);
    08.81, 10.9, 1.7' (O. Miyazaki, 0.32-m Newtonian);
    08.19, 9.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    08.16, 9.9, 3' (M. Meyer, 0.152-m Refractor);
    08.13, 10.1, 2' (E. Banach, 0.25-m Newtonian);
    08.12, 9.9, 3' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian; 6.5' tail in p.a. 260 deg);
    07.83, 10.7, 3.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 5.7' tail in p.a. 248 deg);
    07.15, 9.6, 3.7' (P. Dekelver, 0.3-m Newtonian + CCD; 9.5' tail in p.a. 246 deg);
    07.14, 9.6, 3' (T. Karhula, Virsbo, Sweden, 25x100 Binoculars);
    06.86, 9.7, 6.6' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.52° tail in p.a. 236 deg);
    06.18, 8.9, 5.6' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    04.18, 9.4, 13' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.35° tail in p.a. 232 deg);
feb 25.19, 9.6, 7.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.91° tail in p.a. 228 deg);
    20.83, 10.5, 1.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 6.8' tail in p.a. 242 deg);
    19.29, 10.2, 3' (J. de Souza Aguiar, 0.3-m Newtonian);

C/2021 S4 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 13.83, 17.9, 0.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    11.85, 17.8, 0.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    07.86, 17.3, 0.33' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    02.87, 17.2, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD);

C/2021 T4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.18, 17.4, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    08.13, 16.3, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    08.11, 16.2, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    07.01, 16.3, 0.5' (P. Dekelver, 0.3-m Newtonian + CCD);
    06.19, 17.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    06.09, 15.9, 0.8' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
feb 29.08, 15.8, 0.7' (P. Dekelver, 0.3-m Newtonian + CCD);
    22.25, 17.3, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    21.22, 15.8, 1.8' (T. Lehmann, Nerpio (remote), 0.25-m Newtonian + CCD);

C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.94, 13.6, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 3.4' tail in p.a. 131 deg);
    13.86, 14.5, 0.55' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 1.1' tail in p.a. 128 deg);
    13.47, 12.2, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    12.88, 13.8, 1' (H. Kiiskinen, 0.4-m Ritchey-Chretien + CCD; 1.9' tail in p.a. 127 deg);
    12.42, 13.8, 0.8' (C. Wyatt, 0.4-m Newtonian);
    11.87, 14.5, 0.55' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 1.6' tail in p.a. 117 deg);
    09.97, 13.6, 1.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.04° tail in p.a. 125 deg);
    09.82, 13.3, 0.8' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian);
    09.46, 12.6, 0.9' (O. Miyazaki, 0.32-m Newtonian);
    08.98, 13.6, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 2.5' tail in p.a. 119 deg);
    08.91, 13.6, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.08° tail in p.a. 130 deg);
    08.91, 12.8, 1.1' (W. Kutschera, 0.508-m Newtonian);
    08.86, 13.8, 0.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    08.83, 13.2, 0.8' (P. Guzik, 0.326-m Newtonian);
    07.99, 13.6, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    07.95, 12.5, 1' (W. Kutschera, 0.508-m Newtonian; 0.07° tail);
    07.92, 13.1, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD; 3.4' tail in p.a. 127 deg);
    07.91, 13.4, 0.56' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    07.91, 13.8, 0.6' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    07.89, 13.9, 0.55' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD; 1.6' tail in p.a. 124 deg);
    07.48, 13.5, 0.7' (C. Wyatt, 0.4-m Newtonian);
    06.89, 14.2, 0.44' (S. Shurpakov, 0.2-m Schmidt-Newtonian + CCD);
    06.83, 13.3, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 3.7' tail in p.a. 127 deg);
    06.51, 14.0, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.5' tail in p.a. 125 deg);
    05.99, 13.6, 1.3' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    05.95, 14.0, 0.75' (K. Hills, 0.5-m Newtonian + CCD);
    05.51, 13.8, 1.1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.7' tail in p.a. 126 deg);
    05.46, 13.5, 0.7' (C. Wyatt, 0.4-m Newtonian; 1.2' tail in p.a. 126 deg);
    04.90, 13.4, 1.5' (P. Dekelver, 0.3-m Newtonian + CCD; 4.1' tail in p.a. 128 deg);
    03.98, 13.3, 2.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.06° tail in p.a. 132 deg);
    03.90, 14.5, 0.9' (M. Lošťák, 0.2-m Newtonian + CCD);
    03.88, 12.6, 0.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
    02.95, 13.3, 2.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.05° tail in p.a. 131 deg);
    02.90, 14.1, 0.38' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD);
    02.89, 13.4, 0.56' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);
    02.81, 13.2, 0.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian);
feb 29.97, 13.5, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 127 deg);
    29.00, 13.5, 0.9' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    28.94, 13.4, 1.8' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 2.2' tail in p.a. 128 deg);
    28.90, 13.4, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 3.1' tail in p.a. 127 deg);
    28.47, 12.5, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    27.85, 13.3, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 3.7' tail in p.a. 130 deg);
    27.46, 13.0, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    26.96, 13.2, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 2' tail in p.a. 142 deg);
    24.91, 13.4, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 0.06° tail in p.a. 131 deg);
    18.87, 13.1, 0.75' (N. Quinn, 0.28-m Schmidt-Cassegrain + CCD; 2.1' tail in p.a. 130 deg);

C/2022 L2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.57, 14.5, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.57, 14.4, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    14.17, 15.2, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    10.60, 14.9, 0.6' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    09.61, 14.8, 0.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    05.71, 13.7, 3' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.12° tail in p.a. 36 deg);
    05.63, 15.0, 0.7' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
feb 22.26, 15.5, 0.56' (K. Hills, 0.5-m Newtonian + CCD);
    21.83, 13.9, 2.5' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.09° tail in p.a. 31 deg);
    20.69, 15.2, 0.5' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 05.86, 17.1, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2022 T1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 06.14, 17.7, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2022 U3 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 10.95, 18.6, 0.38' (K. Hills, 0.5-m Newtonian + CCD);

C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.64, 12.3, 1.2' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    16.92, 11.9, 0.8' (J. Xiong, Xingyuan Observatory, Daocheng, China(remote), 0.203-m Newtonian + CCD);
    16.84, 11.7, 0.75' (J. Xiong, Xingyuan Observatory, Daocheng, China(remote), 0.203-m Newtonian + CCD);
    16.80, 11.7, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    16.65, 12.3, 1.3' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 0.8' tail in p.a. 315 deg);
    16.20, 12.3, 0.94' (K. Hills, 0.5-m Newtonian + CCD);
    13.79, 11.9, 0.6' (O. Miyazaki, 0.32-m Newtonian);
    11.20, 12.6, 0.75' (K. Hills, 0.5-m Newtonian + CCD);
    10.80, 11.9, 0.7' (O. Miyazaki, 0.32-m Newtonian);
    09.80, 11.8, 1.1' (O. Miyazaki, 0.32-m Newtonian);
    09.67, 12.5, 1.3' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 307 deg);
    09.03, 12.0, 0.8' (C. Harder, Kirchheim/ Thüringen Sternwarte, 0.531-m Newtonian; 2' tail in p.a. 300 deg);
    09.01, 12.2, 0.8' (P. Guzik, 0.326-m Newtonian);
    09.00, 11.6, 0.5' (M. Filipek, 0.4-m Newtonian);
    08.80, 11.8, 0.8' (O. Miyazaki, 0.32-m Newtonian);
    08.18, 12.4, 1' (M. Meyer, 0.254-m Newtonian);
    08.17, 12.2, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 1.3' tail in p.a. 312 deg);
    08.15, 12.3, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien + CCD);
    08.12, 12.2, 0.5' (E. Banach, 0.25-m Newtonian);
    08.03, 12.0, 0.8' (C. Harder, Kirchheim/ Sternwarte, 0.531-m Newtonian; 2' tail in p.a. 300 deg);
    07.69, 12.8, 1.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1.1' tail in p.a. 312 deg);
    07.11, 12.3, 0.6' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian);
    07.03, 12.3, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 1.2' tail in p.a. 305 deg);
    06.81, 12.6, 1.5' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 2.1' tail in p.a. 308 deg);
    06.11, 12.5, 1.1' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);
    06.00, 12.4, 1' (A. Novichonok, 0.031-m Refractor + CCD; 1' tail in p.a. 302 deg);
    05.52, 12.6, 0.6' (C. Wyatt, 0.4-m Newtonian);
    05.27, 12.6, 0.8' (K. Yoshimoto, 0.356-m Newtonian + CCD; 1.5' tail in p.a. 310 deg);
    05.04, 12.4, 0.5' (M. Kwinta, 0.3-m Newtonian);
    04.92, 12.7, 1.88' (K. Hills, 0.5-m Newtonian + CCD);
    04.73, 12.8, 1.3' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD; 1' tail in p.a. 309 deg);
    04.15, 12.7, 1.5' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 1.2' tail in p.a. 308 deg);
    04.08, 12.3, 0.5' (E. Banach, 0.25-m Newtonian);
    03.10, 12.8, 1.6' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 1.3' tail in p.a. 314 deg);
feb 29.10, 12.7, 1.3' (S. Fritsche, Koeditz, 0.1-m Refractor + CCD; 0.5' tail in p.a. 304 deg);
    29.10, 12.2, 1.8' (P. Dekelver, 0.3-m Newtonian + CCD; 1.4' tail in p.a. 314 deg);
    25.13, 13.0, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian + CCD; 1.3' tail in p.a. 303 deg);
    24.95, 12.3, 0.8' (J. Xiong, Daocheng, China(remote,O46), 0.203-m Newtonian + CCD; 1.2' tail);
    21.85, 13.0, 1.1' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 1.7' tail in p.a. 309 deg);
    20.73, 13.1, 1' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);
    19.00, 12.9, -- (A. Novichonok, 0.028-m Refractor + CCD);

C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 06.84, 15.7, 1.1' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.8' tail in p.a. 279 deg);
feb 22.75, 16.0, 0.6' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD; 0.5' tail in p.a. 288 deg);

C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 06.03, 17.5, 0.4' (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

C/2023 P1 (Nishimura)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 05.63, 15.4, 2.2' (T. Lehmann, Australia (remote), 0.279-m Newtonian + CCD);

C/2023 S3 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 09.82, 16.1, 0.4' (A. Pearce, 0.35-m Schmidt-Cassegrain + CCD);

C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 13.97, 17.8, 0.38' (K. Hills, 0.5-m Newtonian + CCD);
    08.00, 16.4, 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
mar 07.78, 13.5, 3.9' (T. Lehmann, Hakos (remote), 0.2-m Newtonian + CCD);

C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 14.28, 19.9, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);

P/2010 H2 (Vales)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb 29.86, [18.8, -- (P. Carson, PGC Observatory Z10, Fregenal de la sierra, Spain, 0.315-m Cassegrain reflector + CCD);

P/2011 NO1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 02.93, 14.2, 0.9' (D. Buczynski, Tarbatness MPC Code I81, 0.35-m Schmidt-Cassegrain + CCD);

P/2014 VF40 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 08.27, 19.9, 0.5' (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD; 1.1' tail in p.a. 262 deg);

P/2023 B1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar 18.20, 20.2, -- (J. Maikner, Comet Hunter Observatory 2, 0.305-m Hyperboloid astro-camera + CCD);