4P/Faye
Total-magnitude and coma-diameter estimates:
2021 Apr. 30.17, 15.2, 1.2' (T. Lehmann, Hakos, 0.2-m Newtonian reflector; 0.6' tail in p.a. 248)
6P/dArrest
Total-magnitude and coma-diameter estimates:
2021 May. 05.08, 18.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
7P/Pons-Winnecke
Total-magnitude and coma-diameter estimates:
2021 May. 25.15, 14.6, -- (E. Stickel, Burke-Gaffney Observatory, 0.61-m Cassegrain reflector)
2021 May. 24.06, 11.4, 6' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 20.07, 13.9, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2021 May. 19.62, 12.8, 2' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 15.07, 10.9, 9.6' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 13.72, 14.4, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 11.03, 13.8, 0.5' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 10.18, 12.7, 1' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2021 May. 10.07, 11.2, 11' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 09.19, 12.7, 1' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2021 May. 08.18, 12.8, 1' (J. de Souza Aguiar, 0.27-m Newtonian reflector)
2021 May. 08.13, 11.3, 2.5' (J. Gonzalez Suarez, Collado del Fresno - Aramo, 1221 m, Asturias, Spain, 0.203-m Schmidt-Cassegrain)
2021 May. 08.07, 14.2, 0.3' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 08.07, 11.2, 9.6' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 08.06, 11.8, 6.5' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.07-deg tail in p.a. 265)
2021 May. 07.19, 12.2, 2.8' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 06.05, [14.0, -- (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector)
2021 May. 05.12, 12.8, 3' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 28.09, 13.0, 3' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 Apr. 28.07, 12.3, 5.1' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.6' tail in p.a. 259)
2021 Apr. 26.09, 13.4, 2.6' (S. Fritsche, Koeditz, 0.1-m refractor)
15P/Finlay
Total-magnitude and coma-diameter estimates:
2021 May. 15.76, 14.1, 1.5' (G. van Buitenen, Siding Spring, AU (Q62), 0.51-m Ritchey-Chretien)
2021 May. 01.14, 13.8, 3.9' (T. Lehmann, Hakos, 0.2-m Newtonian reflector)
2021 May. 01.08, 18.0, -- (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
22P/Kopff
Total-magnitude and coma-diameter estimates:
2021 May. 04.91, 18.0, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
57P/du Toit-Neujmin-Delporte
Total-magnitude and coma-diameter estimates:
2021 May. 06.00, 18.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 27.01, 18.9, 0.4' (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
67P/Churyumov-Gerasimenko
Total-magnitude and coma-diameter estimates:
2021 May. 24.14, 16.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
99P/Kowal
Total-magnitude and coma-diameter estimates:
2021 May. 15.89, 17.6, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
117P/Helin-Roman-Alu
Total-magnitude and coma-diameter estimates:
2021 May. 19.57, 15.1, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.92, 16.1, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 17.49, 15.0, 0.4' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 14.02, 15.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 13.44, 15.2, 0.4' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 07.97, 14.4, 0.7' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 07.95, 15.5, 0.35' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2021 May. 07.95, 15.6, 1.1' (S. Fritsche, Koeditz, 0.1-m refractor; 0.8' tail in p.a. 292)
2021 May. 07.95, 15.7, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 2.3' tail in p.a. 299)
2021 May. 06.96, 16.0, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 05.35, 15.6, 1.2' (T. Lehmann, Mayhill (remote), 0.28-m Newtonian reflector; 2.0' tail in p.a. 299)
2021 May. 02.94, 15.7, 0.5' (E. Bryssinck, 0.4-m Newtonian reflector; 1.9' tail in p.a. 299)
2021 May. 02.07, 15.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 30.91, 15.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
156P/Russell-LINEAR
Total-magnitude and coma-diameter estimates:
2021 May. 11.88, 15.0, 0.6' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.89, 16.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 01.93, 16.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 27.88, 15.8, 0.9' (S. Fritsche, Koeditz, 0.1-m refractor)
186P/Garradd
Total-magnitude and coma-diameter estimates:
2021 Apr. 27.15, 21.0, 0.3' (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
246P/NEAT
Total-magnitude and coma-diameter estimates:
2021 May. 19.60, 14.3, 0.8' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.53, 15.0, 0.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 14.19, 13.3, 0.8' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 13.72, 14.5, 0.7' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 07.18, 15.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
278P/McNaught
Total-magnitude and coma-diameter estimates:
2021 May. 01.15, 21.0, -- (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
2021 Apr. 30.17, 21.0, -- (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
282P
Total-magnitude and coma-diameter estimates:
2021 May. 13.03, 17.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 02.06, 17.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
398P/Boattini
Total-magnitude and coma-diameter estimates:
2021 May. 05.91, 18.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
409P/LONEOS-Hill
Total-magnitude and coma-diameter estimates:
2021 May. 07.97, 17.1, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.6' tail in p.a. 200)
2021 May. 04.98, 16.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.99, 16.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 30.94, 17.1, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 27.94, 16.7, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.4' tail in p.a. 203)
413P/Larson
Total-magnitude and coma-diameter estimates:
2021 May. 04.96, 17.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 01.93, 16.5, 0.6' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 27.89, 17.0, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
417P/NEOWISE
Total-magnitude and coma-diameter estimates:
2021 May. 07.17, 18.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2010 U3 (Boattini)
Total-magnitude and coma-diameter estimates:
2021 May. 04.98, 18.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.94, 19.3, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
C/2014 B1 (Schwartz)
Total-magnitude and coma-diameter estimates:
2021 Apr. 27.83, 19.8, 0.4' (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2021 May. 24.00, 13.7, 2.6' (S. Fritsche, Koeditz, 0.1-m refractor; 1.0' tail in p.a. 316)
2021 May. 19.63, 13.8, 0.8' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 16.00, 13.7, 1.2' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 14.99, 13.7, 2.2' (S. Fritsche, Koeditz, 0.1-m refractor; 1.8' tail in p.a. 340)
2021 May. 14.95, 14.2, 2' (M. Lostak, 0.2-m Newtonian reflector)
2021 May. 13.70, 14.0, 0.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 11.03, 13.4, 1.1' (M. Masek, 0.2-m Newtonian reflector)
2021 May. 11.03, 13.8, 1.1' (M. Masek, 0.2-m Newtonian reflector)
2021 May. 11.02, 14.2, 0.75' (N. James, 970, 0.28-m Schmidt-Cassegrain)
2021 May. 08.04, 13.5, 0.7' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 08.03, 13.8, 2.6' (S. Fritsche, Koeditz, 0.1-m refractor; 2.1' tail in p.a. 341)
2021 May. 08.02, 13.7, 1.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 2.3' tail in p.a. 336)
2021 May. 05.37, 13.8, 2.1' (T. Lehmann, Mayhill (remote), 0.28-m Newtonian reflector; 0.05-deg tail in p.a. 333)
2021 May. 04.16, 12.6, 1.3' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.97, 13.8, 0.9' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 02.92, 13.5, 1.6' (E. Bryssinck, 0.4-m Newtonian reflector)
2021 Apr. 30.99, 13.9, 0.9' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 28.00, 13.8, 1.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 Apr. 26.04, 13.8, 2' (S. Fritsche, Koeditz, 0.1-m refractor)
C/2018 N2 (ASASSN)
Total-magnitude and coma-diameter estimates:
2021 May. 17.95, 16.3, 0.6' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 14.97, 15.5, 2.4' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 14.88, 16.3, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 10.01, 15.8, 1.8' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 03.90, 14.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 30.97, 16.3, 0.6' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
C/2018 U1 (Lemmon)
Total-magnitude and coma-diameter estimates:
2021 May. 19.59, 15.1, 0.4' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.51, 15.2, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 14.20, 14.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 13.70, 15.2, 0.4' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 10.04, 15.4, 1' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 08.08, 15.3, 0.2' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 05.11, 15.5, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 04.04, 14.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2019 C1
Total-magnitude and coma-diameter estimates:
2021 May. 14.00, 17.2, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 04.94, 16.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2019 F1 (ATLAS-Africano)
Total-magnitude and coma-diameter estimates:
2021 May. 19.61, 14.9, 0.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.52, 14.5, 0.7' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 13.73, 15.1, 0.5' (C. Wyatt, 0.4-m Newtonian reflector)
C/2019 K7 (SMITH)
Total-magnitude and coma-diameter estimates:
2021 May. 15.04, 16.3, 1' (S. Fritsche, Koeditz, 0.1-m refractor; 1.2' tail in p.a. 161)
2021 May. 08.02, 15.7, 0.25' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 05.15, 16.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.99, 16.7, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 26.03, 16.3, 0.7' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.3' tail in p.a. 169)
C/2019 L3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 14.87, 12.6, 3.6' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 07.87, 12.8, 1.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.8' tail in p.a. 332)
2021 Apr. 27.85, 12.8, 1.9' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.8' tail in p.a. 329)
2021 Apr. 27.84, 12.9, 2' (S. Fritsche, Koeditz, 0.1-m refractor)
C/2019 N1 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 Apr. 30.36, 14.3, 0.9' (C. Wyatt, 0.4-m Newtonian reflector)
2021 Apr. 29.74, 13.7, 3.4' (T. Lehmann, Hakos, 0.2-m Newtonian reflector; 0.21-deg tail in p.a. 132)
C/2019 O3
Total-magnitude and coma-diameter estimates:
2021 May. 05.17, 16.0, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2019 T3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 24.11, 17.2, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 24.03, 17.5, 0.6' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 18.21, 16.9, -- (E. Stickel, Burke-Gaffney Observatory, 0.61-m Cassegrain reflector)
2021 May. 09.19, 16.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 17.47, 13.5, 0.6' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 13.45, 14.4, 0.2' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 06.88, 14.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 05.87, 14.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 30.74, 14.7, 1' (T. Lehmann, Hakos, 0.2-m Newtonian reflector)
2021 Apr. 30.38, 14.5, 0.3' (C. Wyatt, 0.4-m Newtonian reflector)
C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2021 May. 08.06, 16.4, 0.1' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 05.13, 16.4, -- (E. Stickel, Burke-Gaffney Observatory, 0.61-m Cassegrain reflector)
C/2020 F5 (MASTER)
Total-magnitude and coma-diameter estimates:
2021 May. 19.64, 15.1, 0.6' (C. Wyatt, 0.4-m Newtonian reflector)
C/2020 H6 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 19.90, 15.7, -- (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2021 May. 15.97, 16.5, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 14.04, 15.6, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 12.02, 15.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 07.95, 16.0, 0.3' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 07.89, 16.0, 0.3' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2021 May. 04.12, 15.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.95, 16.3, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
C/2020 J1 (SONEAR)
Total-magnitude and coma-diameter estimates:
2021 May. 19.58, 12.6, 1.8' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.50, 13.0, 1.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 15.98, 13.3, 1.5' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 13.45, 12.9, 1' (C. Wyatt, 0.4-m Newtonian reflector)
C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates:
2021 May. 10.15, 17.7, -- (E. Stickel, Burke-Gaffney Observatory, 0.61-m Cassegrain reflector)
2021 May. 06.01, 17.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 28.03, 17.9, 0.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
C/2020 M3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 04.90, 18.4, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2020 M5 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 23.97, 16.0, 1' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 16.01, 15.7, 0.8' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 12.19, 15.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 08.04, 15.9, 1.4' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.8' tail in p.a. 123)
2021 May. 08.03, 15.6, 0.2' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 05.08, 16.7, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 05.06, 15.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 28.05, 16.5, 0.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 Apr. 26.07, 16.2, 0.8' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.7' tail in p.a. 149)
C/2020 O2 (Amaral)
Total-magnitude and coma-diameter estimates:
2021 May. 13.17, 14.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 05.09, 16.1, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
C/2020 R4 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 23.89, 12.1, 8' (S. Fritsche, Koeditz, 0.1-m refractor; 0.11-deg tail in p.a. 111)
2021 May. 17.90, 13.2, 2.8' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 17.48, 12.4, 3.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.00, 10.4, 3.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 16.91, 11.2, 2.3' (M. Kwinta, 0.19-m Newtonian reflector)
2021 May. 16.89, 12.3, 1.5' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 16.80, 10.0, 4' (G. Pappa, Catania, Sicily , 0.3-m reflector)
2021 May. 15.98, 10.4, 3.2' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 15.91, 12.5, 4.3' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 15.03, 11.7, 2.1' (W. Kutschera, 0.54-m Newtonian reflector)
2021 May. 14.93, 10.4, 2.5' (C. Harder, Jeersdorf, h, 0.252-m Newtonian reflector)
2021 May. 14.90, 10.9, 15' (S. Fritsche, Koeditz, 0.1-m refractor; 0.25-deg tail in p.a. 116)
2021 May. 14.87, 10.0, 4.5' (U. Pilz, 16x70 binoculars)
2021 May. 14.86, 11.8, 10.1' (M. Lostak, 0.2-m Newtonian reflector)
2021 May. 13.42, 11.6, 3.8' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 12.93, 10.9, 2.6' (M. Kwinta, 0.19-m Newtonian reflector)
2021 May. 11.93, 11.7, 2.2' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 11.93, 11.0, 2.5' (M. Kwinta, 0.19-m Newtonian reflector)
2021 May. 11.92, 10.2, 5' (M. Paradowski, Piotrowice Wielkie, Poland, 15x70 binoculars)
2021 May. 11.89, 10.1, 4' (C. Labordena, La Serra d Engarcera, 0.15-m Newtonian reflector)
2021 May. 11.88, 11.1, 6' (M. Paradowski, Piotrowice Wielkie, Poland, 0.054-m reflector)
2021 May. 11.88, 11.9, 3' (M. Paradowski, Piotrowice Wielkie, Poland, 0.054-m reflector)
2021 May. 11.87, 10.7, 6' (M. Paradowski, Piotrowice Wielkie, Poland, 0.054-m reflector; 5.0' tail in p.a. 130)
2021 May. 10.96, 10.8, 4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 10.91, 10.8, 6.1' (M. Masek, 0.2-m Newtonian reflector; 5.3' tail in p.a. 128)
2021 May. 10.90, 10.6, 3.3' (M. Masek, 0.3-m Newtonian reflector)
2021 May. 10.90, 12.0, 3.8' (M. Masek, 0.2-m Newtonian reflector; 7.9' tail in p.a. 122)
2021 May. 10.89, 10.2, 4' (M. Kwinta, Bukowiec (Bieszczady), 0.25-m Newtonian reflector)
2021 May. 09.90, 10.4, 2.5' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 09.89, 10.0, 4.1' (M. Kwinta, Bukowiec (Bieszczady), 0.25-m Newtonian reflector)
2021 May. 09.87, 10.1, 20' (S. Fritsche, Koeditz, 0.1-m refractor; 0.15-deg tail in p.a. 124)
2021 May. 09.84, 11.2, 3.5' (A. Novichonok, With Nikon D5200 (55-mm lens), 0.013-m refractor)
2021 May. 09.00, 10.5, 3.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 08.90, 9.8, 4.5' (M. Kwinta, Bukowiec (Bieszczady), 0.25-m Newtonian reflector)
2021 May. 08.89, 9.9, 4' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 08.08, 9.6, 8' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2021 May. 07.99, 10.8, 2.4' (W. Kutschera, 0.25-m Newtonian reflector; 0.04-deg tail)
2021 May. 07.94, 10.1, 4' (M. Kwinta, 0.19-m Newtonian reflector)
2021 May. 07.93, 10.3, 3' (G. van Buitenen, Dordrecht, NL (G06), 0.304-m Newtonian reflector)
2021 May. 07.93, 9.5, 4' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 07.93, 11.2, 2.2' (S. Szabo, Agfalva, 0.6-m Newtonian reflector; 3.5' tail in p.a. 130)
2021 May. 07.92, 10.6, 5' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2021 May. 07.92, 10.9, 2.7' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien; 8.0' tail in p.a. 135)
2021 May. 07.91, 9.6, 6.5' (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector; 5.0' tail in p.a. 130)
2021 May. 07.91, 9.5, 30' (S. Fritsche, Koeditz, 0.1-m refractor; 0.31-deg tail in p.a. 133)
2021 May. 07.89, 10.4, 9.3' (P. Dekelver, 0.1-m refractor; 10.9' tail in p.a. 133)
2021 May. 07.89, 11.6, 3' (E. Bryssinck, 0.4-m Newtonian reflector; 5.0' tail in p.a. 132)
2021 May. 07.89, 9.6, 19' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 0.44-deg tail in p.a. 117)
2021 May. 07.03, 9.9, 4.5' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 07.01, 10.4, 8' (P. Dekelver, 0.1-m refractor; 7.6' tail in p.a. 125)
2021 May. 06.95, 9.7, 5' (T. Karhula, Virsbo, Sweden, 25x100 binoculars)
2021 May. 06.93, 10.1, 9.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 06.92, 9.7, 7' (J. Warell, Lindby Observatory (K60), Skurup, Sweden , 20x100 binoculars)
2021 May. 05.94, 9.7, 5.1' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 05.91, 9.7, 6' (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector; 4.5' tail in p.a. 125)
2021 May. 05.90, 9.3, 4' (C. Labordena, La Serra d Engarcera, 0.2-m Schmidt-Cassegrain)
2021 May. 05.90, 9.0, 6' (C. Labordena, La Serra d Engarcera, 11x80 binoculars)
2021 May. 05.86, 10.2, 5.8' (A. Novichonok, With Nikon D5200 (55-mm lens), 0.027-m refractor; 10.0' tail in p.a. 142)
2021 May. 05.15, 9.3, 19' (T. Lehmann, Mayhill (remote), 0.106-m refractor; 0.25-deg tail in p.a. 132)
2021 May. 05.06, 10.3, 8.1' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 04.90, 9.6, 6' (C. Harder, Jeersdorf, h, 0.252-m Newtonian reflector; 6.0' tail in p.a. 162)
2021 May. 04.88, 10.9, 8' (J. Chambo, Valles, Spain, 0.2-m Newtonian reflector; 13.0' tail in p.a. 142)
2021 May. 04.86, 9.0, 5' (M. Meyer, 0.254-m Newtonian reflector)
2021 May. 04.85, 10.3, 4' (A. Novichonok, L: 21.0 mag/arcsec^2, Simeiz observatory, 0.2-m Newtonian reflector)
2021 May. 03.99, 9.1, 9' (M. Paradowski, Lublin, Poland, 0.025-m reflector)
2021 May. 03.95, 10.3, 7.7' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 03.94, 9.6, 4.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 03.92, 8.3, 10' (J. Gonzalez Suarez, 25x100 binoculars)
2021 May. 03.89, 9.4, 7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2021 May. 03.89, 9.3, 5' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 02.94, 9.3, 8' (J. Warell, Lindby Observatory (K60), Skurup, Sweden , 20x100 binoculars)
2021 May. 02.90, 9.4, 5' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2021 May. 02.89, 9.1, 7.5' (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector; 10.0' tail in p.a. 165)
2021 May. 02.88, 9.7, 2.4' (A. Novichonok, -L: 20.9 mag/arcsec^2, Simeiz observatory, 0.2-m Newtonian reflector)
2021 May. 02.86, 8.9, 4' (M. Meyer, 0.254-m Newtonian reflector)
2021 May. 02.85, 10.3, 5.6' (E. Bryssinck, 0.4-m Newtonian reflector; 9.0' tail in p.a. 152)
2021 May. 02.80, 10.1, 6.9' (A. Novichonok, With Nikon D5200 (132-mm lens), 0.027-m refractor; 10.0' tail in p.a. 142)
2021 May. 02.80, 10.1, 6.9' (A. Novichonok, With Nikon D5200 (132-mm lens), 0.027-m refractor; 10.0' tail in p.a. 142)
2021 May. 01.96, 9.4, 11.7' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 01.94, 9.3, 6' (A. Scholten, Eerbeek, 0.2-m Newtonian reflector)
2021 May. 01.15, 8.4, 7' (C. Hergenrother, 30x125 binoculars)
2021 May. 01.00, 9.2, 5' (G. Pappa, Namibia (Remote Control), 0.2-m Cassegrain reflector)
2021 Apr. 30.99, 9.2, 4' (T. Karhula, Virsbo, Sweden, 0.305-m Newtonian reflector)
2021 Apr. 30.93, 8.3, 24' (T. Lehmann, Hakos, 0.2-m Newtonian reflector; 0.23-deg tail in p.a. 128)
2021 Apr. 30.91, 9.9, 2.6' (M. Kwinta, 0.19-m Newtonian reflector)
2021 Apr. 30.89, 9.4, 10.1' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 29.90, 8.1, 31' (S. Fritsche, Koeditz, 0.1-m refractor; 0.08-deg tail in p.a. 170)
2021 Apr. 27.96, 7.7, 26' (S. Fritsche, Koeditz, 0.1-m refractor; 0.06-deg tail in p.a. 185)
2021 Apr. 27.90, 8.6, 9.3' (P. Dekelver, 0.1-m refractor; 6.4' tail in p.a. 163)
2021 Apr. 26.92, 9.5, 4' (G. Pappa, Namibia (Remote Control), 0.5-m Cassegrain reflector)
2021 Apr. 26.85, 9.1, 1' (V. Bahyl, observatory "Julia" Zvolenska Slatina, Slovak Republic, Europe, 0.235-m Schmidt-Cassegrain; 1.0' tail in p.a. 0)
2021 Apr. 26.85, 9.1, 1' (V. Bahyl, observatory "Julia" Zvolenska Slatina, Slovak Republic, Europe, 0.235-m Schmidt-Cassegrain; 1.0' tail in p.a. 0)
C/2020 S8 (Lemmon)
Total-magnitude and coma-diameter estimates:
2021 May. 15.94, 17.2, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 12.04, 16.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 08.00, 16.2, 0.3' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 06.95, 16.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 04.11, 15.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 Apr. 30.96, 16.1, 0.6' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
C/2020 T2 (Palomar)
Total-magnitude and coma-diameter estimates:
2021 May. 23.93, 10.3, 9.7' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 19.87, 10.5, 3' (G. van Buitenen, Dordrecht, NL (G06), 0.203-m Ritchey-Chretien)
2021 May. 19.62, 11.1, 3.5' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 18.06, 10.6, 2.8' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 17.94, 10.9, 6.1' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 17.90, 10.9, 3.7' (M. Paradowski, Lublin, Poland, 0.054-m reflector)
2021 May. 17.89, 11.1, 3.7' (M. Paradowski, Lublin, Poland, 0.054-m reflector)
2021 May. 17.88, 11.1, 3.7' (M. Paradowski, Lublin, Poland, 0.054-m reflector)
2021 May. 17.47, 10.9, 6' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 17.01, 11.0, 3.4' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 16.91, 11.0, 2' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 16.80, 10.3, 2' (G. Pappa, Catania, Sicily , 0.3-m reflector)
2021 May. 16.00, 11.2, 2.6' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 15.96, 11.0, 6' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 15.90, 10.6, 3' (C. Harder, Jeersdorf, h, 0.252-m Newtonian reflector)
2021 May. 14.99, 10.7, 2.8' (W. Kutschera, 0.25-m Newtonian reflector)
2021 May. 14.93, 10.3, 19' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 14.91, 11.2, 9.2' (M. Lostak, 0.2-m Newtonian reflector)
2021 May. 14.88, 10.1, 3.5' (U. Pilz, 16x70 binoculars)
2021 May. 13.41, 10.7, 7' (C. Wyatt, 0.4-m Newtonian reflector)
2021 May. 12.43, 10.6, 3.5' (C. Wyatt, 0.25-m Newtonian reflector)
2021 May. 11.91, 10.6, 3.5' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 11.91, 10.7, 4' (C. Labordena, La Serra d Engarcera, 0.15-m Newtonian reflector)
2021 May. 11.91, 10.9, 6' (M. Paradowski, Piotrowice Wielkie, Poland, 0.054-m reflector)
2021 May. 10.97, 10.2, 2.9' (M. Collins, Everton, 0.254-m Schmidt-Cassegrain)
2021 May. 10.91, 12.7, 1' (M. Masek, 0.3-m Newtonian reflector)
2021 May. 09.95, 10.5, 11' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 09.91, 10.3, 3' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 08.93, 10.8, 2.5' (M. Filipek, 0.4-m Newtonian reflector)
2021 May. 07.99, 12.3, 1.4' (S. Szabo, Agfalva, 0.6-m Newtonian reflector)
2021 May. 07.99, 10.3, 26' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 May. 07.99, 10.4, 16' (T. Lehmann, Weimar, 0.279-m Newtonian reflector; 1.7' tail in p.a. 215)
2021 May. 07.94, 11.2, 3' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 07.89, 11.0, 4' (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector)
2021 May. 06.94, 11.6, 4' (J. Warell, Lindby Observatory (K60), Skurup, Sweden , 40x100 binoculars)
2021 May. 06.88, 11.9, 1.9' (A. Novichonok, -L: 21.0 mag/arcsec^2, Simeiz observatory, 0.2-m Newtonian reflector)
2021 May. 05.92, 10.8, 4' (C. Labordena, La Serra d Engarcera, 0.2-m Schmidt-Cassegrain)
2021 May. 05.89, 10.8, 3.5' (C. Harder, Jeersdorf, h, 95x298 binoculars)
2021 May. 05.89, 11.7, 2.5' (A. Novichonok, With Nikon D5200 (101-mm lens), 0.021-m refractor)
2021 May. 05.33, 10.6, 15' (T. Lehmann, Mayhill (remote), 0.28-m Newtonian reflector; 2.0' tail in p.a. 214)
2021 May. 05.16, 10.4, 15' (T. Lehmann, Mayhill (remote), 0.106-m refractor; 1.2' tail in p.a. 204)
2021 May. 05.00, 9.9, 7.5' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 04.89, 10.9, 3' (C. Harder, Jeersdorf, h, 0.252-m Newtonian reflector)
2021 May. 04.87, 11.2, 2.5' (M. Meyer, 0.254-m Newtonian reflector)
2021 May. 04.83, 11.5, 2' (A. Novichonok, L: 21.0 mag/arcsec^2, Simeiz observatory, 0.2-m Newtonian reflector)
2021 May. 03.99, 10.2, 5.4' (M. Paradowski, Lublin, Poland, 0.025-m reflector)
2021 May. 03.93, 11.6, 3.8' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 03.90, 9.8, 7' (J. Gonzalez Suarez, 0.203-m Schmidt-Cassegrain)
2021 May. 03.86, 10.8, 3' (M. Filipek, 0.25-m Newtonian reflector)
2021 May. 02.88, 11.0, 3.5' (C. Harder, Jeersdorf, h, 0.298-m Newtonian reflector)
2021 May. 02.87, 11.5, 1.5' (M. Meyer, 0.254-m Newtonian reflector)
2021 Apr. 30.95, 11.2, 6.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 30.92, 11.1, 1.5' (M. Kwinta, 0.19-m Newtonian reflector)
2021 Apr. 29.86, 10.5, 22' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 Apr. 27.92, 11.0, 9.1' (S. Fritsche, Koeditz, 0.1-m refractor)
2021 Apr. 26.87, 12.2, 1' (V. Bahyl, observatory "Julia" Zvolenska Slatina, Slovak Republic, Europe, 0.235-m Schmidt-Cassegrain; 1.0' tail in p.a. 90)
C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates:
2021 May. 07.92, 17.1, 0.6' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
2021 May. 05.01, 16.3, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 01.99, 17.1, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 27.98, 17.3, 0.5' (T. Lehmann, Weimar, 0.279-m Newtonian reflector)
C/2020 Y2 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 15.93, 16.6, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 14.01, 15.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 06.98, 16.6, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 05.95, 15.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.96, 15.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2020 Y3 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 04.99, 18.7, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2021 A1 (Leonard)
Total-magnitude and coma-diameter estimates:
2021 May. 19.91, 17.5, -- (G. van Buitenen, Dordrecht, NL (G06), D800x203 binoculars)
2021 May. 18.12, 17.4, -- (E. Stickel, Burke-Gaffney Observatory, 0.61-m Cassegrain reflector)
2021 May. 17.31, 17.4, 0.2' (J. Chambo, Mayhill, New Mexico, 0.431-m Ritchey-Chretien; 24.0" tail in p.a. 84)
2021 May. 15.95, 17.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 11.20, 17.6, -- (G. van Buitenen, Auberry, CA (U69), 0.203-m Ritchey-Chretien; 1.0' tail in p.a. 115)
2021 May. 10.89, 17.1, 0.18' (J. Chambo, Teide Observatory, Spain, 0.828-m Cassegrain reflector; 52.0" tail in p.a. 120)
2021 May. 07.92, 17.2, 0.5' (P. Dekelver, 0.1-m refractor)
2021 May. 07.87, 17.1, 0.5' (E. Bryssinck, 0.4-m Newtonian reflector; 0.4' tail in p.a. 128)
2021 May. 07.86, 17.5, 0.7' (S. Fritsche, Koeditz, 0.1-m refractor; 0.6' tail in p.a. 151)
2021 May. 07.07, 17.4, 0.5' (P. Dekelver, 0.1-m refractor)
2021 May. 06.91, 17.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 May. 03.94, 16.8, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 03.04, 17.7, 0.5' (P. Dekelver, 0.1-m refractor)
2021 May. 02.26, 17.9, 0.4' (C. Hergenrother, 0.507-m Ritchey-Chretien; 0.8' tail in p.a. 125)
2021 May. 01.99, 17.6, 0.5' (P. Dekelver, 0.1-m refractor)
2021 Apr. 30.88, 17.9, 0.4' (P. Carson, Fregenal de la Sierra Spain, 0.315-m Cassegrain reflector)
2021 Apr. 29.99, 17.1, 0.5' (P. Dekelver, 0.1-m refractor)
2021 Apr. 28.02, 17.3, 0.5' (P. Dekelver, 0.1-m refractor)
2021 Apr. 26.05, 17.2, 0.5' (P. Dekelver, 0.1-m refractor)
C/2021 A7 (NEOWISE)
Total-magnitude and coma-diameter estimates:
2021 Apr. 29.76, 14.5, 2.5' (T. Lehmann, Hakos, 0.2-m Newtonian reflector)
C/2021 C4 (ATLAS)
Total-magnitude and coma-diameter estimates:
2021 May. 13.99, 16.9, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 05.94, 17.3, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
2021 May. 04.93, 17.1, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
C/2021 D2 (ZTF)
Total-magnitude and coma-diameter estimates:
2021 May. 07.21, 19.5, 0.4' (K. Hills, Comphot version 1.2.6, 0.5-m Newtonian reflector)
