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Summary of the brighter comets in 1991


The following table gives a summary of the comets brighter than 16 mag, which were observed by members of the German Comet Section.

The maximum brightness of comets brighter than 10.0 mag is given with an accuracy of 0.1 mag, that of fainter comets with an accuracy of 0.5 mag. The maximum coma diameter is given with an accuracy of 0.1' for comae less than 1', with an accuracy of 0.5' for comae between 1' and 5' and with an accuracy of 1' for larger comae.

old Design. new Design. Comet's Name discovered T q [AU] m_max Coma ['] FGK
1989t 81P P/Wild 2 Sep 10, 1989 Dec 16, 1990 1.58 12.0 2.0 P
1989u 59P P/Kearns-Kwee Sep 10, 1989 Nov 22, 1990 2.22 11.5 0.8 V, P
1989h1 53P P/Van Biesbroeck Dec 30, 1989 Apr 24, 1991 2.40 13.5 0.7 P
1990c C/1990 K1 Levy May 20, 1990 Oct 24, 1990 0.94 7.3 5.0 V, P
1990e 43P P/Wolf-Harrington Jun 14, 1990 Apr 04, 1991 1.61 12.5 1.5 P
1990g C/1990 M1 McNaught-Hughes Jun 19, 1990 Feb 27, 1991 2.68 13.5 0.7 P
1990i C/1990 N1 Tsuchiya-Kiuchi Jul 13, 1990 Sep 28, 1990 1.09 8.7 4.5 V
1990n 69P P/Taylor Nov 11, 1990 Dec 28, 1990 1.95 14.0 1.5 P
1991a 97P P/Metcalf-Brewington Jan 07, 1991 Jan 05, 1991 1.59 8.3 5 V, P
1991b C/1991 A2 Arai Jan 07, 1991 Dec 10, 1990 1.43 10.0 3.0 V, P
1991c 64P P/Swift-Gehrels Jan 12, 1991 Feb 22, 1991 1.36 12.5 1.5 P
1991d C/1991 B1 P/Shoemaker-Levy Jan 22, 1991 Dec 31, 1991 2.26 10.0 3.0 V, P
1991h 98P P/Takamizawa Feb 17, 1991 Aug 17, 1991 1.59 14.0 1.0 P
1991j 100P P/Hartley 1 Mar 12, 1991 May 17, 1991 1.82 14.5 0.7 P
1991l C/1991 F2 Helin-Lawrence Mar 17, 1991 Jan 20, 1992 1.52 13.5 0.7 P
1991n 4P P/Faye Apr 16, 1991 Nov 16, 1991 1.59 9.5 3.5 V, P
1991o 101P P/Chernykh Jun 08, 1991 Jan 25, 1992 2.36 12.5 0.8 P
1991p 102P P/Shoemaker 1 Jun 08, 1991 Dec 18, 1991 1.99 13.5 1.0 P
1991q C/1991 L3 Levy Jun 14, 1991 Jul 08, 1991 0.98 8.1 7 V, P
1991s 46P P/Wirtanen Jul 08, 1991 Sep 20, 1991 1.08 9.6 3.5 V, P
1991t 103P P/Hartley 2 Jul 09, 1991 Sep 11, 1991 0.95 7.9 13 V, P
1991a1 C/1991 T2 Shoemaker-Levy Oct 06, 1991 Jul 24, 1992 0.84 15.0 0.5 P
1991b1 181P P/Shoemaker-Levy 6 Nov 07, 1991 Oct 13, 1991 1.13 10.5 7 P
1991f1 104P P/Kowal 2 Dec 12, 1991 Nov 04, 1991 1.50 13.0 1.0 P
1991g1 C/1991 Y1 Zanotta-Brewington Dec 23, 1991 Jan 31, 1992 0.64 8.7 4.5 V
29P P/Schwassmann-Wachmann 1 - Sep 12, 1989 5.76 12.0 0.8 V
49P P/Arend-Rigaux - Oct 02, 1991 1.44 14.0 0.5 P
96P P/Machholz - Jul 22, 1991 0.13 8.5 2.5 P

Explanation

Andreas Kammerer


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