Recent Comet Brightness Estimates

11P/Tempel-Swift-LINEAR
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.78, 11.6, 6' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 22.00, 11.3, 5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 21.90, 15.2, 0.25' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 21.55, [14.0, 0.5' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 20.84, 14.5, 1.3' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 20.83, 15.3, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 18.90, 13.4, 7.2' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.85, 13.6, 5.3' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 100)
2020 Nov. 17.93, 15.4, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 14.89, 13.8, 5.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 14.88, 13.7, 5.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 13.01, 15.8, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 08.91, 14.7, 2.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 08.90, 13.8, 4.1' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 07.83, 13.6, 0.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain)
2020 Nov. 07.79, 14.8, 0.6' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 07.75, 13.6, 0.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain)
2020 Nov. 06.99, 15.0, 0.9' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 06.93, 14.1, 4.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.5' tail in p.a. 111)
2020 Nov. 05.86, 13.8, 5.3' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 04.89, 14.4, 2.8' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 04.84, 16.2, 0.26' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2020 Oct. 29.91, 16.6, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

17P/Holmes
Total-magnitude and coma-diameter estimates:
2020 Nov. 24.77, 17.0, 2' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)
2020 Nov. 14.05, 15.8, 0.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 14.05, 16.1, 0.4' (M. Masek, 0.3-m Cassegrain reflector)

29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.91, 13.3, 0.6' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian reflector)
2020 Nov. 22.79, 13.3, 0.8' (C. Harder, Jeersdorf, f, 0.303-m Newtonian reflector)
2020 Nov. 22.04, 11.0, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 22.04, 12.6, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 21.93, 12.7, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 21.89, 12.6, 1.7' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 21.81, 13.3, 0.2' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 21.50, 12.8, 0.9' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 20.91, 11.8, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 20.90, 12.1, 2.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 20.87, 12.6, 0.7' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 20.80, 13.4, 0.5' (C. Harder, Jeersdorf, f, 0.303-m Newtonian reflector)
2020 Nov. 19.93, 12.5, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 19.90, 12.7, 2.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 19.02, 12.3, 11' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.90, 13.3, 2.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 18.83, 15.1, 0.35' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 18.20, 10.8, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 17.90, 13.7, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 17.90, 13.7, 1.9' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 16.93, 13.0, 2.8' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 15.09, 12.1, 9.8' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 14.89, 12.7, 1.6' (W. Kutschera, 0.54-m Newtonian reflector)
2020 Nov. 14.47, [15.4, -- (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 10.45, [14.7, -- (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 08.95, 12.3, 9' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 07.93, 13.3, 2.6' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.88, 12.8, 1.8' (G. Scheerle, 0.235-m Schmidt-Cassegrain)
2020 Nov. 06.96, 11.8, 12' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 06.94, 12.8, 3' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 06.90, 14.6, 1.1' (M. Smith, Heathwood Road, Cardiff, 0.12-m refractor)
2020 Nov. 05.77, 14.4, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 04.94, 12.7, 5.5' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Oct. 29.94, 15.8, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

36P/Whipple
Total-magnitude and coma-diameter estimates:
2020 Nov. 20.79, 18.0, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 17.04, 18.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.97, 18.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

84P/Giclas
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.02, 16.8, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 283)
2020 Nov. 15.14, 16.4, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)

88P/Howell
Total-magnitude and coma-diameter estimates:
2020 Nov. 21.37, 10.9, 1' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 20.76, 10.0, 4' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 18.72, 9.9, 7.2' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 17.80, 8.9, 7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 16.08, 9.1, 3' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 15.44, 9.4, 4.7' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 15.07, 9.3, 4' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 14.48, 9.5, 4' (M. Mattiazzo, Swan Hill, Victoria, 25x100 binoculars)
2020 Nov. 14.42, 9.2, 4' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 12.05, 10.9, 3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.05, 9.7, 4.8' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 10.42, 9.4, 4.8' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 09.42, 9.3, 13' (T. Lehmann, SSO (remote), 0.106-m refractor)
2020 Nov. 08.40, 9.3, 4.5' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 07.71, 9.7, 6.9' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 05.96, 10.0, 2.5' (M. Goiato, 0.22-m Newtonian reflector)
2020 Nov. 05.93, 10.4, 3' (J. de Souza Aguiar, 0.65-m Newtonian reflector)
2020 Nov. 05.92, 10.6, 5' (J. de Souza Aguiar, 0.35-m Schmidt-Cassegrain)
2020 Nov. 04.06, 10.9, 1.8' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 04.06, 9.7, 3.6' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 03.42, 9.3, 11' (T. Lehmann, SSO (remote), 0.106-m refractor)
2020 Nov. 03.40, 8.9, 3.4' (C. Wyatt, 0.25-m Newtonian reflector)

95P/Chiron
Total-magnitude and coma-diameter estimates:
2020 Nov. 16.97, 17.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.92, 18.0, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

99P/Kowal
Total-magnitude and coma-diameter estimates:
2020 Nov. 26.13, 18.5, 0.3' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)

101P/Chernykh
Total-magnitude and coma-diameter estimates:
2020 Nov. 21.07, 17.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

115P/Maury
Total-magnitude and coma-diameter estimates:
2020 Nov. 17.82, 18.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.81, 17.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.74, 16.0, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)

156P/Russell-LINEAR
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.83, 11.1, 1.5' (C. Harder, Jeersdorf, f, 0.303-m Newtonian reflector)
2020 Nov. 22.02, 9.6, 6' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 21.86, 11.0, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector; 1.2' tail in p.a. 80)
2020 Nov. 21.52, 11.1, 2.1' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 20.88, 9.8, 13' (S. Fritsche, Koeditz, 0.1-m refractor; 1.2' tail in p.a. 93)
2020 Nov. 20.86, 10.2, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 20.85, 10.2, 2.5' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 20.82, 11.3, 2.8' (C. Harder, Jeersdorf, f, 0.303-m Newtonian reflector)
2020 Nov. 19.80, 10.0, 3' (C. Harder, Jeersdorf, f, 0.195-m Newtonian reflector)
2020 Nov. 18.89, 10.4, 2.6' (W. Kutschera, 0.25-m Newtonian reflector)
2020 Nov. 18.82, 9.5, 20' (S. Fritsche, Koeditz, 0.1-m refractor; 0.06-deg tail in p.a. 83)
2020 Nov. 18.80, 10.4, 2.5' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 18.79, 9.7, 17' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 82)
2020 Nov. 18.78, 11.5, 2.5' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 17.94, 9.6, 8' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 17.89, 10.1, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 17.85, 9.3, 8.1' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 17.08, 10.5, 3' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 16.08, 10.5, 3' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 15.46, 9.7, 6' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 15.07, 10.5, 3' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 14.86, 9.8, 19' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.08-deg tail in p.a. 81)
2020 Nov. 14.85, 10.5, 3.6' (W. Kutschera, 0.25-m Newtonian reflector; 0.07-deg tail)
2020 Nov. 14.81, 9.6, 21' (S. Fritsche, Koeditz, 0.1-m refractor; 1.6' tail in p.a. 75)
2020 Nov. 14.50, 10.2, 6' (M. Mattiazzo, Swan Hill, Victoria, 25x100 binoculars)
2020 Nov. 14.45, 9.7, 5.6' (C. Wyatt, 0.4-m Newtonian reflector; 3.5' tail in p.a. 49)
2020 Nov. 12.80, 10.4, 2.5' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 12.15, 11.6, 1.8' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.15, 11.5, 3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 10.44, 10.3, 5.2' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 09.81, 10.5, 23' (S. Fritsche, Koeditz, 0.1-m refractor; 2.2' tail in p.a. 70)
2020 Nov. 09.79, 10.1, 3.5' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 09.44, 9.8, 19' (T. Lehmann, SSO (remote), 0.106-m refractor; 0.07-deg tail in p.a. 74)
2020 Nov. 08.82, 9.4, 17' (S. Fritsche, Koeditz, 0.1-m refractor; 1.3' tail in p.a. 70)
2020 Nov. 08.77, 11.5, 2' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector; 2.0' tail in p.a. 60)
2020 Nov. 08.41, 10.6, 4.5' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 07.98, 10.8, 2' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 07.87, 9.7, 7.5' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.86, 10.7, 1.1' (S. Szabo, Agfalva, 0.1-m refractor)
2020 Nov. 07.83, 10.0, 17' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.11-deg tail in p.a. 67)
2020 Nov. 07.79, 10.3, 3' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 07.78, 12.1, 1.5' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 06.96, 10.3, 3' (M. Goiato, 0.22-m Newtonian reflector)
2020 Nov. 06.87, 11.0, 3.2' (J. Hadač, 0.13-m Newtonian reflector; 2.7' tail in p.a. 70)
2020 Nov. 06.84, 11.0, 3' (U. Pilz, 0.32-m Newtonian reflector)
2020 Nov. 06.83, 9.9, 21' (S. Fritsche, Koeditz, 0.1-m refractor; 2.3' tail in p.a. 71)
2020 Nov. 06.82, 10.4, 4' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 06.81, 10.1, 16' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 65)
2020 Nov. 05.86, 9.7, 20' (S. Fritsche, Koeditz, 0.1-m refractor; 2.2' tail in p.a. 61)
2020 Nov. 05.84, 10.2, 12' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 2.3' tail in p.a. 68)
2020 Nov. 05.78, 11.0, 3' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 05.75, 12.1, 0.25' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 05.71, 10.6, 2' (T. Karhula, Virsbo, Sweden, 0.12-m refractor)
2020 Nov. 05.54, 10.5, 7' (M. Mattiazzo, Swan Hill, Victoria, 25x100 binoculars)
2020 Nov. 04.84, 10.3, 13' (S. Fritsche, Koeditz, 0.1-m refractor; 1.2' tail in p.a. 65)
2020 Nov. 04.76, 10.6, 3' (M. Meyer, 0.254-m Newtonian reflector)
2020 Nov. 04.75, 11.2, 1' (C. Harder, Jeersdorf, f, 0.195-m Newtonian reflector)
2020 Nov. 03.44, 9.9, 19' (T. Lehmann, SSO (remote), 0.106-m refractor; 0.07-deg tail in p.a. 62)
2020 Nov. 03.41, 10.6, 4' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 02.85, 10.4, 12' (S. Fritsche, Koeditz, 0.1-m refractor; 1.8' tail in p.a. 67)
2020 Nov. 02.82, 12.2, 0.6' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2020 Oct. 29.96, 12.0, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

162P/Siding Spring
Total-magnitude and coma-diameter estimates:
2020 Nov. 18.74, 16.1, 1' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 17.87, 16.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 12.10, 15.7, 0.3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.10, 16.2, 0.3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 03.83, 15.9, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

173P/Mueller
Total-magnitude and coma-diameter estimates:
2020 Nov. 20.03, 18.0, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

174P/Echeclus
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.97, 18.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

184P/Lovas
Total-magnitude and coma-diameter estimates:
2020 Nov. 16.76, 19.0, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

191P/McNaught
Total-magnitude and coma-diameter estimates:
2020 Nov. 25.78, 18.5, -- (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)

215P/NEAT
Total-magnitude and coma-diameter estimates:
2020 Nov. 06.95, 17.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 03.82, 17.9, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

220P/McNaught
Total-magnitude and coma-diameter estimates:
2020 Nov. 26.77, 19.7, -- (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)

254P/McNaught
Total-magnitude and coma-diameter estimates:
2020 Nov. 03.82, 18.0, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

257P/Catalina
Total-magnitude and coma-diameter estimates:
2020 Nov. 17.88, 17.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.89, 17.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.77, 17.5, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.9' tail in p.a. 274)

277P/LINEAR
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.03, 16.1, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 18.97, 16.6, 1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 201)
2020 Nov. 18.86, 17.5, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 17.02, 16.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 14.94, 16.2, 1.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 14.94, 16.8, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 08.98, 16.8, 0.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 07.92, 17.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.06, 17.2, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.4' tail in p.a. 225)

312P/NEAT
Total-magnitude and coma-diameter estimates:
2020 Nov. 16.77, 19.5, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

398P/Boattini
Total-magnitude and coma-diameter estimates:
2020 Nov. 21.98, 13.2, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 21.91, 13.7, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 21.54, 13.5, 0.5' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 20.82, 13.2, 2' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 19.00, 13.8, 1.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.05-deg tail in p.a. 328)
2020 Nov. 18.98, 13.7, 2.5' (S. Fritsche, Koeditz, 0.1-m refractor; 0.06-deg tail in p.a. 314)
2020 Nov. 17.96, 13.2, 1.5' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2020 Nov. 17.03, 13.5, 1.3' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 15.68, 13.9, 0.7' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 15.02, 13.7, 3.3' (S. Fritsche, Koeditz, 0.1-m refractor; 0.05-deg tail in p.a. 309)
2020 Nov. 14.98, 14.0, 2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.12-deg tail in p.a. 312)
2020 Nov. 14.48, 13.9, 1' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 12.20, 14.7, 0.5' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.20, 15.7, 0.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 07.99, 14.3, 0.8' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.04, 14.8, 0.54' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2020 Nov. 07.01, 14.6, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.08-deg tail in p.a. 304)
2020 Nov. 07.01, 14.3, 2' (S. Fritsche, Koeditz, 0.1-m refractor; 1.2' tail in p.a. 305)
2020 Nov. 05.51, 14.1, 3.2' (T. Lehmann, SSO (remote), 0.106-m refractor; 0.08-deg tail in p.a. 297)
2020 Nov. 04.99, 14.6, 1.8' (S. Fritsche, Koeditz, 0.1-m refractor; 0.7' tail in p.a. 314)

400P/PANSTARRS
Total-magnitude and coma-diameter estimates:
2020 Nov. 21.96, 18.5, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

C/2010 U3 (Boattini)
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.27, 18.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

C/2015 XY1 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 17.92, 19.5, 0.3' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2016 M1 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.06, 18.5, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 17.09, 18.0, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

C/2017 B3 (LINEAR)
Total-magnitude and coma-diameter estimates:
2020 Nov. 13.15, 17.5, 0.3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 13.15, 16.6, 0.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 07.87, 16.0, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 190)
2020 Nov. 06.87, 16.2, 1.1' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 06.84, 16.2, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 190)
2020 Nov. 05.76, 14.8, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)

C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.71, 15.0, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.6' tail in p.a. 345)
2020 Nov. 20.81, 15.6, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 18.76, 15.0, 1.5' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.74, 15.0, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.5' tail in p.a. 356)
2020 Nov. 14.78, 15.1, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 14.72, 15.1, 1.6' (S. Fritsche, Koeditz, 0.1-m refractor; 1.0' tail in p.a. 4)
2020 Nov. 08.78, 15.0, 1.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 08.76, 15.0, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.8' tail in p.a. 353)
2020 Nov. 06.75, 14.8, 0.5' (J. Hadač, 0.13-m Newtonian reflector; 0.5' tail in p.a. 358)
2020 Nov. 06.74, 15.0, 1.3' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 2.0' tail in p.a. 359)
2020 Nov. 05.80, 15.1, 1.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.0' tail in p.a. 348)
2020 Nov. 05.73, 15.2, 0.4' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 05.73, 15.3, 1.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 02.79, 15.1, 0.43' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)

C/2018 A6 (Gibbs)
Total-magnitude and coma-diameter estimates:
2020 Nov. 17.84, 17.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.88, 17.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

C/2018 F4 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 16.94, 14.7, 0.8' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 13.20, 15.6, 0.6' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 13.20, 16.3, 0.5' (M. Masek, 0.3-m Cassegrain reflector)

C/2018 N2 (ASASSN)
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.74, 14.7, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.14-deg tail in p.a. 32)
2020 Nov. 19.17, 14.8, 1.2' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.76, 15.1, 0.5' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 15.17, 14.3, 3' (S. Fritsche, Koeditz, 0.1-m refractor; 0.05-deg tail in p.a. 27)
2020 Nov. 08.73, 14.8, 0.4' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 08.73, 14.7, 1.8' (S. Fritsche, Koeditz, 0.1-m refractor; 0.06-deg tail in p.a. 15)
2020 Nov. 07.74, 14.4, 0.4' (C. Harder, Jeersdorf, f, 215x531 binoculars)
2020 Nov. 06.78, 14.7, 0.6' (J. Hadač, 0.13-m Newtonian reflector)
2020 Nov. 06.77, 14.7, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.17-deg tail in p.a. 25)
2020 Nov. 05.74, 14.3, 0.7' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)

C/2018 U1 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 09.72, 17.2, 0.8' (S. Fritsche, Koeditz, 0.1-m refractor; 1.0' tail in p.a. 33)
2020 Nov. 05.74, 16.7, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 42)

C/2019 B3 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.13, 18.0, 0.2' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2019 E3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.12, 17.5, 0.7' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2019 K7 (SMITH)
Total-magnitude and coma-diameter estimates:
2020 Nov. 06.73, 16.1, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.6' tail in p.a. 131)
2020 Nov. 05.77, 16.5, 1.1' (S. Fritsche, Koeditz, 0.1-m refractor; 0.7' tail in p.a. 133)
2020 Nov. 05.72, 15.6, 0.2' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)

C/2019 L3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.81, 14.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 206)
2020 Nov. 21.84, 14.3, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 21.82, 13.6, 0.6' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 20.87, 14.0, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 18.94, 14.3, 1.8' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.82, 14.1, 1.5' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.5' tail in p.a. 217)
2020 Nov. 18.80, 14.5, 0.35' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 12.97, 14.2, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 08.88, 14.3, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.8' tail in p.a. 217)
2020 Nov. 08.86, 14.4, 1.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 08.75, 14.8, 0.4' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 07.91, 13.9, 0.6' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 07.77, 14.2, 0.45' (C. Harder, Jeersdorf, f, 0.531-m Newtonian reflector)
2020 Nov. 07.10, 14.2, 1.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 218)
2020 Nov. 06.97, 13.9, 0.7' (J. Hadač, 0.13-m Newtonian reflector)
2020 Nov. 06.91, 14.3, 1.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 05.90, 14.3, 1.2' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 05.89, 14.1, 1.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.6' tail in p.a. 215)
2020 Nov. 05.75, 14.5, 0.3' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 05.05, 14.7, 1.3' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 02.89, 14.7, 1.4' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 02.84, 14.2, 0.36' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2020 Oct. 29.92, 14.8, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

C/2019 M3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.85, 8.5, 5' (J. Navarro Pina, Puerto de la Cadena ( Murcia , Spain ), 20x80 binoculars)

C/2019 NJ3 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 02.92, 17.5, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2019 T2
Total-magnitude and coma-diameter estimates:
2020 Nov. 14.10, 17.3, 0.3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 14.10, 17.5, 0.3' (M. Masek, 0.3-m Cassegrain reflector)

C/2019 T3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 21.81, 16.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 18.88, 17.0, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.3' tail in p.a. 51)
2020 Nov. 06.90, 17.0, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.4' tail in p.a. 37)
2020 Nov. 06.78, 17.5, 0.6' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 02.81, 16.7, 0.9' (S. Fritsche, Koeditz, 0.1-m refractor)

C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 12.29, 15.2, 0.3' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.29, 15.5, 0.2' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 04.05, 15.4, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2019 U6 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 18.71, 15.5, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.2-deg tail in p.a. 225)
2020 Nov. 08.73, 14.5, 2.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.25-deg tail in p.a. 220)
2020 Nov. 06.74, 13.9, 4.7' (S. Fritsche, Koeditz, 0.1-m refractor; 0.1-deg tail in p.a. 218)
2020 Nov. 05.76, 14.5, 2.2' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.14-deg tail in p.a. 220)

C/2020 F5 (MASTER)
Total-magnitude and coma-diameter estimates:
2020 Nov. 15.45, 15.0, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 14.44, 14.8, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
2020 Nov. 13.10, 15.3, 0.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 13.09, 14.9, 0.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 04.82, 15.0, 1' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 04.45, 14.7, 1.7' (T. Lehmann, SSO (remote), 0.106-m refractor; 0.8' tail in p.a. 242)

C/2020 H5 (Robinson)
Total-magnitude and coma-diameter estimates:
2020 Nov. 22.13, 18.5, 0.3' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2020 K7 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 12.78, 20.0, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2020 M3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 26.52, 8.0, 10' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 26.12, 8.5, -- (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 26.08, 8.6, 6' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 25.17, 8.5, 6' (M. Filipek, 25x100 binoculars)
2020 Nov. 25.11, 8.9, 3.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 25.10, 8.5, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 25.04, 8.5, 6.7' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 24.52, 7.9, 6' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 24.52, 8.3, 9' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 24.21, 7.8, 12' (M. Goiato, 20x100 binoculars)
2020 Nov. 24.11, 8.5, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 23.10, 8.4, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 23.04, 7.7, 15' (C. Harder, Jeersdorf, h, 8x44 binoculars)
2020 Nov. 22.94, 8.5, 5.3' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 22.93, 8.6, 7' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2020 Nov. 22.28, 7.7, 12' (M. Goiato, 20x100 binoculars)
2020 Nov. 22.21, 7.6, 15' (J. Gonzalez Suarez, 25x100 binoculars)
2020 Nov. 22.20, 7.3, 15' (J. Gonzalez Suarez, 10x50 binoculars)
2020 Nov. 22.12, 8.2, 4' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 22.12, 8.3, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 22.07, 8.0, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 22.03, 7.7, 12' (T. Karhula, Sandvreten, Sweden, 18x50 binoculars)
2020 Nov. 22.03, 7.6, 15' (C. Labordena, La Serra de Engarceran, 11x80 binoculars)
2020 Nov. 22.00, 7.9, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 21.97, 8.3, 6' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 21.94, 8.5, 5' (M. Filipek, 25x100 binoculars)
2020 Nov. 21.92, 7.4, 14.1' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 21.88, 8.8, 5.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2020 Nov. 21.52, 8.6, 4.5' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 21.19, 8.9, 7' (M. Deconinck, Aquarellia Observatory, 25x126 binoculars)
2020 Nov. 21.08, 8.2, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 21.07, 8.1, 4' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 21.03, 7.9, 9' (M. Biely, Czech Republic, Brno, 20x80 binoculars)
2020 Nov. 21.01, 8.0, 2' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 20.94, 8.2, 7' (M. Filipek, 25x100 binoculars)
2020 Nov. 20.93, 7.7, 30' (J. Konecny, Hlivice, 25x100 binoculars)
2020 Nov. 20.92, 8.3, 8' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2020 Nov. 20.92, 7.9, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 20.90, 7.8, 13' (J. Powichrowski, 20x60 binoculars)
2020 Nov. 20.88, 7.5, 13' (M. Meyer, 0.12-m refractor)
2020 Nov. 20.88, 8.2, 11' (J. Bohusz, Myślin Poland, 0.25-m Newtonian reflector)
2020 Nov. 20.87, 8.2, 7' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 20.84, 8.4, 8' (C. Harder, Jeersdorf, f, 0.303-m Newtonian reflector)
2020 Nov. 20.52, 7.7, 6' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 20.52, 8.0, 9' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 20.14, 7.9, 3' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 20.12, 7.6, 12' (M. Goiato, 20x100 binoculars)
2020 Nov. 20.06, 8.0, 15' (V. Kasten, 15x50 binoculars)
2020 Nov. 20.03, 8.9, 5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 19.98, 7.4, 16' (T. Karhula, Virsbo, Sweden, 0.12-m refractor)
2020 Nov. 19.95, 8.0, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 19.85, 8.0, 9.5' (C. Harder, Jeersdorf, f, 0.195-m Newtonian reflector)
2020 Nov. 19.52, 7.8, 5' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 19.20, 8.2, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 19.08, 8.1, 5.2' (W. Kutschera, 0.25-m Newtonian reflector)
2020 Nov. 19.06, 7.6, 46' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 18.97, 7.8, 13' (J. Warell, Lindby Observatory (K60), Skurup, Sweden , 11x80 binoculars)
2020 Nov. 18.94, 7.8, 10' (M. Filipek, 25x100 binoculars)
2020 Nov. 18.93, 7.7, 30' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.1-deg tail in p.a. 256)
2020 Nov. 18.91, 9.6, 5.3' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 18.89, 8.3, 6' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 18.87, 7.5, 11' (M. Meyer, 0.12-m refractor)
2020 Nov. 18.84, 8.1, 15' (C. Harder, Jeersdorf, f, 15x70 binoculars)
2020 Nov. 18.22, 7.4, 15' (J. Gonzalez Suarez, 25x100 binoculars)
2020 Nov. 18.20, 8.0, 10' (T. Karhula, Virsbo, Sweden, 0.12-m refractor)
2020 Nov. 18.17, 10.5, 5.5' (M. Deconinck, Aquarellia Observatory, 25x126 binoculars)
2020 Nov. 18.00, 7.2, 15' (J. Gonzalez Suarez, 10x50 binoculars)
2020 Nov. 17.95, 8.0, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 17.18, 9.5, 2' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 17.16, 7.8, 7' (C. Labordena, La Serra de Engarceran, 11x80 binoculars)
2020 Nov. 17.13, 7.8, 5' (J. de Souza Aguiar, 11x80 binoculars)
2020 Nov. 17.10, 8.5, 3' (A. Amorim, 0.09-m refractor)
2020 Nov. 17.08, 8.4, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 17.06, 7.5, 10.9' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 17.05, 8.5, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 16.72, 7.7, 12' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 16.07, 9.6, 4.7' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 16.04, 7.7, 12' (C. Harder, Jeersdorf, h, 0.195-m Newtonian reflector)
2020 Nov. 15.93, 8.2, 1' (G. Jaimes, Cochabamba - Bolivia, 0.05-m reflector)
2020 Nov. 15.90, 8.1, 7' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 15.53, 7.7, 7' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 15.50, 7.7, 9.3' (C. Wyatt, 0.05-m refractor)
2020 Nov. 15.16, 7.4, 14' (M. Goiato, 7x50 binoculars)
2020 Nov. 15.15, 7.6, 12' (M. Goiato, 20x100 binoculars)
2020 Nov. 15.14, 7.9, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 15.13, 7.7, 5' (J. de Souza Aguiar, 11x80 binoculars)
2020 Nov. 15.09, 7.8, 22' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.6' tail in p.a. 262)
2020 Nov. 15.06, 7.7, 43' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 15.00, 8.1, 8' (U. Pilz, 16x70 binoculars)
2020 Nov. 14.99, 7.9, 4.8' (W. Kutschera, 0.13-m Newtonian reflector)
2020 Nov. 14.54, 7.8, 12' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 14.53, 7.7, 10' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 14.52, 7.6, 12.5' (C. Wyatt, 0.05-m refractor)
2020 Nov. 14.24, 7.7, 13' (J. Gonzalez Suarez, 25x100 binoculars)
2020 Nov. 13.90, 8.3, 7' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 13.18, 8.6, 2.75' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 13.17, 8.3, 6' (V. Kasten, 20x80 binoculars)
2020 Nov. 13.15, 7.7, 9' (C. Harder, Jeersdorf, h, 0.195-m Newtonian reflector)
2020 Nov. 13.05, 8.3, 6' (G. van Buitenen, Dordrecht, NL (G06), 0.13-m Newtonian reflector)
2020 Nov. 13.00, 8.9, 3' (G. van Buitenen, Dordrecht, Netherlands, 0.203-m Ritchey-Chretien)
2020 Nov. 13.00, 8.1, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 12.96, 7.4, 15' (M. Meyer, 10x50 binoculars)
2020 Nov. 12.91, 8.4, 8' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2020 Nov. 12.24, 9.3, 6' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.24, 8.5, 10.5' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.08, 9.8, 4.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 11.51, 7.6, 6' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 10.95, 8.9, 2.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2020 Nov. 10.47, 8.1, 8' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 09.96, 7.4, 14' (M. Meyer, 10x50 binoculars)
2020 Nov. 09.12, 7.9, 5' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 09.11, 7.9, 5' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 09.01, 7.4, 23' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 08.89, 7.6, 6' (M. Kwinta, 0.19-m Newtonian reflector)
2020 Nov. 08.89, 9.0, 3.5' (M. Filipek, 0.25-m Newtonian reflector)
2020 Nov. 08.13, 7.6, 6' (J. de Souza Aguiar, 11x80 binoculars)
2020 Nov. 08.13, 7.8, 5' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 08.13, 7.7, 5' (W. Souza, 15x70 binoculars)
2020 Nov. 08.12, 7.8, 5' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 08.10, 8.5, 8' (V. Kasten, 20x80 binoculars)
2020 Nov. 08.07, 7.9, 21' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 07.99, 9.1, 3.5' (M. Filipek, 0.25-m Newtonian reflector)
2020 Nov. 07.98, 7.9, 6' (C. Harder, Jeersdorf, Wohnzimmerfenster !, 0.195-m Newtonian reflector)
2020 Nov. 07.92, 7.9, 16' (M. Swietnicki, 10x50 binoculars)
2020 Nov. 07.55, 7.6, 15' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 07.54, 7.4, 31' (T. Lehmann, SSO (remote), 0.106-m refractor)
2020 Nov. 07.12, 7.3, 18' (M. Goiato, 7x50 binoculars)
2020 Nov. 07.12, 7.8, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 07.11, 7.6, 14' (M. Goiato, 20x100 binoculars)
2020 Nov. 07.11, 7.7, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 07.08, 8.5, 4' (A. Amorim, 0.09-m refractor)
2020 Nov. 07.07, 7.3, 42' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 07.02, 7.9, 7.8' (J. Hadač, 0.13-m Newtonian reflector)
2020 Nov. 06.95, 9.2, 5' (M. Biely, Czech Republic, Brno, 20x80 binoculars)
2020 Nov. 06.15, 8.5, 3' (A. Amorim, 0.09-m refractor)
2020 Nov. 06.10, 7.9, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 06.08, 7.7, 12' (M. Goiato, 20x100 binoculars)
2020 Nov. 05.53, 7.8, 13' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 05.10, 7.4, 30' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 04.09, 8.0, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 02.70, 9.1, 6.5' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Oct. 29.50, 7.6, 6' (C. Hergenrother, 30x125 binoculars)
2020 Oct. 29.30, 8.5, 2' (A. Amorim, 0.09-m refractor)
2020 Oct. 29.17, 8.0, 5' (J. de Souza Aguiar, 25x100 binoculars)

C/2020 M5 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.77, 18.2, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.3' tail in p.a. 66)
2020 Nov. 17.86, 17.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 14.82, 17.8, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.3' tail in p.a. 65)
2020 Nov. 14.77, 18.2, 0.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 08.83, 17.9, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)

C/2020 N1 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 20.83, 16.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 18.86, 15.7, 1.7' (S. Fritsche, Koeditz, 0.1-m refractor; 0.8' tail in p.a. 131)
2020 Nov. 18.77, 16.1, 1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 119)
2020 Nov. 17.87, 17.3, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 14.85, 16.2, 1.2' (S. Fritsche, Koeditz, 0.1-m refractor; 0.4' tail in p.a. 136)
2020 Nov. 12.96, 17.5, 0.1' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2020 Nov. 10.87, 17.2, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 07.00, 17.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Nov. 06.98, 16.4, 0.9' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.5' tail in p.a. 143)
2020 Nov. 05.82, 16.8, 1' (S. Fritsche, Koeditz, 0.1-m refractor)

C/2020 P1 (NEOWISE)
Total-magnitude and coma-diameter estimates:
2020 Nov. 15.20, 16.4, 0.7' (S. Fritsche, Koeditz, 0.1-m refractor)

C/2020 Q1 (Borisov)
Total-magnitude and coma-diameter estimates:
2020 Nov. 08.78, [16.7, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2020 Nov. 07.80, [17.0, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)

C/2020 R4 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.79, 17.0, 1' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)
2020 Nov. 09.77, 15.4, 2' (S. Fritsche, Koeditz, 0.1-m refractor; 1.2' tail in p.a. 247)

C/2020 R7 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.81, 17.9, 0.5' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2020 S3 (Erasmus)
Total-magnitude and coma-diameter estimates:
2020 Nov. 27.91, 7.3, -- (G. Chenyang, Qingdao, 20x80 binoculars)
2020 Nov. 27.28, 7.1, 6' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 26.73, 7.1, 3' (M. Mattiazzo, Swan Hill, Victoria, 25x100 binoculars)
2020 Nov. 26.53, 7.1, 5' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 26.30, 7.1, 4' (W. Souza, 15x70 binoculars)
2020 Nov. 26.29, 7.1, 4' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 26.28, 7.1, 7' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 26.14, 7.0, 3.5' (A. Novichonok, Simeiz observatory, 0.15-m Newtonian reflector)
2020 Nov. 25.30, 7.1, 5' (W. Souza, 15x70 binoculars)
2020 Nov. 25.30, 7.0, 4' (M. Goiato, 20x100 binoculars; 0.2-deg tail in p.a. 270)
2020 Nov. 25.29, 7.1, 5' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 25.28, 7.2, 7' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 24.81, 7.2, 4' (A. Pearce, Nedlands, W. Australia, 0.1-m Newtonian reflector)
2020 Nov. 24.73, 7.2, 3' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 24.53, 7.2, 4' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 24.53, 7.1, 4' (C. Hergenrother, 30x125 binoculars; 0.3-deg tail in p.a. 280)
2020 Nov. 24.29, 7.2, 4' (A. Amorim, 0.09-m refractor)
2020 Nov. 24.28, 7.3, 7' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 23.82, 7.3, 4.5' (A. Pearce, Nedlands, W. Australia, 0.1-m Newtonian reflector)
2020 Nov. 23.29, 7.4, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 23.29, 7.3, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 23.29, 7.2, 5' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 23.29, 7.2, 5' (W. Souza, 15x70 binoculars)
2020 Nov. 23.28, 7.1, 5' (W. Souza, 10x50 binoculars)
2020 Nov. 22.82, 7.4, 4' (A. Pearce, Nedlands, W. Australia, 0.1-m Newtonian reflector)
2020 Nov. 22.30, 7.2, 5' (M. Goiato, 7x50 binoculars)
2020 Nov. 22.30, 7.3, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 22.29, 7.2, 4' (M. Goiato, 20x100 binoculars; 0.4-deg tail in p.a. 275)
2020 Nov. 22.29, 7.6, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 22.29, 7.3, 5' (A. Amorim, 0.09-m refractor)
2020 Nov. 22.24, 7.0, 4' (J. Gonzalez Suarez, 25x100 binoculars; 1.4-deg tail in p.a. 280)
2020 Nov. 22.18, 6.8, 2.5' (S. Szabo, Agfalva, 15x80 binoculars)
2020 Nov. 21.83, 7.1, 2.9' (S. Yoshida, 0.4-m Newtonian reflector)
2020 Nov. 21.83, 6.9, 3' (S. Yoshida, 0.07-m refractor)
2020 Nov. 21.81, 7.6, 4' (A. Pearce, Nedlands, W. Australia, 0.1-m Newtonian reflector)
2020 Nov. 21.30, 7.7, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 21.30, 7.4, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 21.30, 7.2, 3' (W. Souza, 15x70 binoculars)
2020 Nov. 21.29, 7.2, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 21.21, 6.5, 9' (M. Deconinck, Aquarellia Observatory, 40x126 binoculars; 17.0' tail)
2020 Nov. 21.21, [ 6.6, 2' (M. Biely, Czech Republic, Brno, 20x80 binoculars)
2020 Nov. 20.53, 7.1, 4' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 20.53, 7.1, 4' (C. Hergenrother, 30x125 binoculars; 0.2-deg tail in p.a. 280)
2020 Nov. 20.32, 7.8, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 20.32, 7.6, 5' (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 20.30, 7.3, 5' (M. Goiato, 7x50 binoculars)
2020 Nov. 20.30, 7.4, 3' (W. Souza, 15x70 binoculars)
2020 Nov. 20.29, 7.4, 4' (M. Goiato, 20x100 binoculars; 0.25-deg tail in p.a. 285)
2020 Nov. 20.29, 7.5, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 20.26, 7.7, 3' (W. Souza, 0.15-m Newtonian reflector)
2020 Nov. 20.22, 7.3, 4' (O. Guthier, 0.125-m refractor)
2020 Nov. 20.21, 7.0, 8' (U. Pilz, 16x70 binoculars)
2020 Nov. 19.73, 7.2, 4' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 19.53, 7.2, 3' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 19.24, 7.3, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Nov. 18.28, 7.6, 3' (A. Amorim, 0.09-m refractor)
2020 Nov. 18.28, 7.7, 3' (A. Amorim, 10x50 binoculars)
2020 Nov. 18.24, 6.8, 8' (J. Gonzalez Suarez, 10x50 binoculars)
2020 Nov. 18.23, 7.1, 6' (J. Gonzalez Suarez, 25x100 binoculars; 0.6-deg tail in p.a. 280)
2020 Nov. 18.21, 7.2, 4' (O. Guthier, 0.125-m refractor)
2020 Nov. 18.20, 8.0, 10' (M. Deconinck, Aquarellia Observatory, 25x126 binoculars)
2020 Nov. 17.52, 7.3, 4' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 17.52, 7.5, 3' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 17.31, 8.0, -- (A. Amorim, 10x50 binoculars)
2020 Nov. 17.30, 7.9, 4' (A. Amorim, 0.09-m refractor)
2020 Nov. 17.29, 7.6, -- (J. de Souza Aguiar, 25x100 binoculars)
2020 Nov. 17.22, < 8.0, 4' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector; 5.0' tail in p.a. 270)
2020 Nov. 17.21, 8.1, 4' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector; 6.0' tail in p.a. 270)
2020 Nov. 17.21, 7.6, 3' (C. Labordena, La Serra de Engarceran, 11x80 binoculars)
2020 Nov. 17.19, 7.1, 4.25' (M. Deconinck, Aquarellia Observatory, 25x126 binoculars)
2020 Nov. 16.73, 7.4, 4' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 15.70, 7.7, 3.8' (C. Wyatt, 15x70 binoculars)
2020 Nov. 15.53, 7.1, 4' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 15.32, 8.0, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 15.32, 7.8, 6' (J. de Souza Aguiar, 11x80 binoculars)
2020 Nov. 15.30, 7.8, 4' (M. Goiato, 20x100 binoculars)
2020 Nov. 14.73, 7.6, 5' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 14.52, 7.4, 5' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 14.23, 6.9, 8' (J. Gonzalez Suarez, Collado del Fresno, 1221 m, Asturias, Spain, 10x50 binoculars)
2020 Nov. 14.22, 7.3, 6' (J. Gonzalez Suarez, 25x100 binoculars; 0.8-deg tail in p.a. 280)
2020 Nov. 13.33, 9.8, 2.4' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 13.33, 8.3, 4.8' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 13.22, 7.2, 6' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector; 5.0' tail in p.a. 270)
2020 Nov. 13.21, 7.2, 6' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 13.20, 7.3, 6' (M. Deconinck, Aquarellia Observatory, 0.25-m Cassegrain reflector)
2020 Nov. 13.19, 7.3, 7' (M. Deconinck, Aquarellia Observatory, 25x126 binoculars)
2020 Nov. 12.73, 8.0, 4' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 12.52, 7.2, 6' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 12.33, 9.6, 3.6' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 12.33, 8.2, 6' (M. Masek, 0.3-m Cassegrain reflector)
2020 Nov. 11.73, 8.2, 4' (M. Mattiazzo, Swan Hill, Victoria, 15x70 binoculars)
2020 Nov. 11.52, 7.3, 5' (C. Hergenrother, 10x50 binoculars)
2020 Nov. 11.52, 7.4, 4' (C. Hergenrother, 30x125 binoculars)
2020 Nov. 08.32, 10.1, 2' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 07.30, 10.0, 3' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 07.21, 8.7, 11' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7-deg tail in p.a. 281)
2020 Nov. 07.20, 8.7, 10' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 06.30, 9.9, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 05.19, 9.5, 3' (C. Harder, Jeersdorf, f, 0.195-m Newtonian reflector)
2020 Nov. 05.19, 8.9, 14' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 04.30, 10.0, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 03.31, 10.0, 4' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2020 Nov. 02.69, 10.1, 2' (C. Wyatt, 0.25-m Newtonian reflector)
2020 Nov. 02.20, 9.7, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2020 Oct. 30.25, 10.2, 3.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2020 Oct. 29.50, 9.5, 4' (C. Hergenrother, 30x125 binoculars)
2020 Oct. 29.50, 9.4, 16' (T. Lehmann, Mayhill (remote), 0.106-m refractor; 0.18-deg tail in p.a. 282)

C/2020 S4 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 19.81, 19.2, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

C/2020 T2 (Palomar)
Total-magnitude and coma-diameter estimates:
2020 Nov. 18.25, 17.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

C/2020 T4 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 23.77, 19.0, 0.5' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)
2020 Nov. 17.00, 19.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)

C/2020 U4 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 24.13, 19.3, 0.5' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)

3200 Phaethon
Total-magnitude and coma-diameter estimates:
2020 Nov. 07.14, 16.2, 0.9' (S. Fritsche, Koeditz, 0.1-m refractor)
2020 Nov. 05.15, 16.1, 0.8' (S. Fritsche, Koeditz, 0.1-m refractor)

P/2005 XA54 (LONEOS-Hill)
Total-magnitude and coma-diameter estimates:
2020 Nov. 26.12, 17.2, 0.5' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)

P/2013 TL117 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 26.13, 18.0, 0.2' (G. Pappa, Namibia(remote), 0.5-m Cassegrain reflector)
2020 Nov. 22.05, 17.4, -- (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)

P/2019 LD2 (ATLAS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 12.78, 18.0, -- (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

P/2020 K9 (Lemmon-PANSTARRS)
Total-magnitude and coma-diameter estimates:
2020 Nov. 18.76, 19.5, 0.4' (G. Pappa, Namibia (remote) , 0.5-m Cassegrain reflector)

P/2020 M2 (Lemmon)
Total-magnitude and coma-diameter estimates:
2020 Nov. 08.14, 17.5, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.5' tail in p.a. 253)