Central Bureau for Astronomical Telegrams
IAUC 3504: 1980k
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Read IAUC 3505
Circular No. 3504
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-864-5758
COMET CERNIS-PETRAUSKAS (1980k)
The following observations have been reported:
1980 UT R. A. (1950) Decl. m1 Observer
Aug. 2.88958 12 00 28.67 +32 35 12.7 11 Wild
4.89251 12 12 06.67 +32 26 42.6 "
6.87986 12 23 18.64 +32 14 37.5 "
7.90174 12 28 55.77 +32 07 08.7 "
12.7 12 55 +31.3 Cernis
14.71805 13 04.3 +31 00 11 "
14.87792 13 04 58.00 +30 57 53.6 Wild
15.71250 13 08.9 +30 48 Cernis
16.67710 13 13.7 +30 37 "
P. Wild (Astronomical Institute, Berne, Zimmerwald Station).
Cernis, Petrauskas, Rakhmatov and V. Straizys (Vilnius University
Observatory). Comet diffuse without condensation, no tail. The
Aug. 12 observation was communicated via R. Mitalas, University
of Western Ontario.
The following parabolic orbital elements, by B. G. Marsden,
are from the five accurate positions, Aug. 2-14:
T = 1980 June 22.441 ET Peri. = 337.778
Node = 159.931 1950.0
q = 0.52292 AU Incl. = 49.075
1980 ET R. A. (1950) Decl. Delta r m1
Aug. 4 12 06.97 +32 31.0
9 12 34.88 +31 58.4 1.544 1.148 11.5
14 13 00.66 +31 08.2
19 13 24.37 +30 05.5 1.673 1.315 12.3
24 13 46.14 +28 54.6
29 14 06.17 +27 38.8 1.822 1.477 13.0
Sept. 3 14 24.65 +26 20.8
8 14 41.75 +25 02.6 1.987 1.636 13.6
13 14 57.67 +23 45.7
18 15 12.55 +22 31.2 2.163 1.791 14.2
23 15 26.51 +21 20.0
28 15 39.68 +20 12.5 2.347 1.942 14.7
m1 = 10.0 + 5 log Delta + 10 log r
1980 August 20 (3504) Brian G. Marsden
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