Central Bureau for Astronomical Telegrams
IAUC 5501: 1991a1; N Cyg 1992
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Circular No. 5501
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)
COMET SHOEMAKER-LEVY (1991a1)
Improved orbital elements from MPC 19655:
Epoch = 1992 Aug. 6.0 TT
T = 1992 July 24.5533 TT Peri. = 145.2274
e = 0.999859 Node = 49.0551 2000.0
q = 0.836720 AU Incl. = 113.5089
1992 TT R. A. (2000) Decl. Delta r Elong. Phase m1
Apr. 28 0 52.65 +39 13.5 2.492 1.722 31.9 18.0 11.8
May 8 1 01.33 +42 22.1 2.293 1.589 35.9 21.9 11.3
18 1 11.39 +46 18.5 2.069 1.457 40.5 26.8 10.7
28 1 24.17 +51 21.8 1.826 1.327 45.3 32.9 10.0
June 7 1 43.34 +58 03.1 1.571 1.201 49.9 40.2 9.3
17 2 22.55 +67 03.9 1.316 1.084 53.5 48.9 8.4
22 3 06.9 +72 27.5 1.196 1.030 54.7 53.7 8.0
27 4 45.4 +77 25.8 1.088 0.980 55.4 58.6 7.6
July 2 7 50.1 +77 55.0 0.996 0.936 55.4 63.4 7.2
7 10 05.9 +70 51.6 0.930 0.899 54.8 67.5 6.9
12 11 04.63 +59 50.9 0.897 0.869 53.6 70.2 6.7
17 11 32.62 +47 35.6 0.902 0.849 52.1 70.9 6.6
22 11 47.87 +35 39.8 0.943 0.838 50.5 69.3 6.6
27 11 56.89 +24 59.4 1.014 0.838 48.8 65.7 6.8
Aug. 1 12 02.50 +15 54.8 1.107 0.848 46.9 60.8 7.0
6 12 06.09 + 8 22.2 1.214 0.869 44.8 55.3 7.3
16 12 10.13 - 3 06.3 1.444 0.935 40.1 44.2 8.0
26 12 12.44 -11 21.2 1.671 1.029 35.3 34.6 8.7
Sept. 5 12 14.37 -17 43.0 1.877 1.140 31.1 27.2 9.4
NOVA CYGNI 1992
Visual magnitude estimates: Apr. 14.85 UT, 8.0 (H. Dahle, Oslo,
Norway); 15.97, 7.6 (B. H. Granslo, Fjellhamar, Norway); 17.05, 7.9
(P. Rapavy, Rimavska Sobota, Czechoslovakia); 19.05, 8.0 (Granslo);
19.97, 8.0 (Rapavy).
Corrigendum. On IAUC 5482, 0.50 day should be added to each of
the dates listed by Piersimoni and Di Paolantonio.
1992 April 20 (5501) Brian G. Marsden
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