Central Bureau for Astronomical Telegrams
IAUC 3555: 1980s; 1980t
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Read IAUC 3556
Circular No. 3555
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 LOVAS (1980s)
Y. Kozai, Tokyo Astronomical Observatory, telexes the following
precise position, obtained by T. Seki at Geisei:
1980 UT R. A. (1950) Decl. m1
Dec. 9.76875 9 12 47.90 +33 40 04.2 17
COMET BRADFIELD (1980t)
D. Herald, Kambah, near Canberra, provides the following precise
positions. The comet shows a tail up to 0o.5 long. Measurements
were difficult at the low altitude.
1981 UT R. A. (1950) Decl. m1
Dec. 18.71840 16 23 22.08 -35 57 35.3 5.5
18.71917 16 23 22.19 -35 57 34.7
19.72229 16 27 34.80 -35 36 42.5
19.72778 16 27 36.23 -35 36 35.6
20.72205 16 32 23.51 -35 11 25.4
Orbital elements by the undersigned:
T = 1980 Dec. 29.548 ET Peri. = 358.345
Node = 114.672 1950.0
q = 0.25963 AU Incl. = 138.595
1980/81 ET R. A. (1950) Decl. Delta r Elong. m1
Dec. 23 16 46.39 -33 50.4 0.970 0.338 19.9 4.2
25 17 03.51 -31 59.0
27 17 26.71 -29 10.3 0.810 0.273 13.6 2.9
29 17 56.35 -25 08.5
31 18 30.07 -20 03.0 0.725 0.264 3.8 2.5
Jan. 2 19 03.24 -14 40.3
4 19 32.16 - 9 52.9 0.770 0.316 15.4 3.4
6 19 55.68 - 6 04.2
8 20 14.39 - 3 11.8 0.895 0.400 24.0 4.8
10 20 29.30 - 1 03.6
12 20 41.36 + 0 32.4 1.045 0.494 28.0 6.0
14 20 51.32 + 1 45.5
16 20 59.68 + 2 42.2 1.196 0.589 29.4 7.1
1980 December 22 (3555) Brian G. Marsden
Read IAUC 3556
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