Central Bureau for Astronomical Telegrams
IAUC 4345: 1987c
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Read IAUC 4346
Circular No. 4345
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 617-495-7244/7440/7444
COMET NISHIKAWA-TAKAMIZAWA-TAGO (1987c)
Precise positions obtained by J. Gibson with the 1.5-m
reflector + CCD at Palomar:
1987 UT R.A. (1950) Decl.
Feb. 19.10979 23 30 45.78 - 1 31 38.2
19.11222 23 30 45.60 - 1 31 40.4
19.11375 23 30 45.67 - 1 31 40.9
Improved parabolic elements from observations Jan. 20-Feb. 19:
T = 1987 Mar. 17.2924 ET W = 200.2590
O = 175.3138 1950.0
q = 0.872147 AU i = 172.2264
1987 ET R.A. (1950) Decl. Delta r m1
Mar. 26 23 03.88 - 8 26.8 1.748 0.887 8.7
31 22 59.58 - 9 33.2
Apr. 5 22 54.97 -10 44.8 1.592 0.937 8.7
10 22 49.87 -12 03.9
15 22 44.03 -13 33.5 1.391 1.016 8.8
20 22 37.07 -15 18.1
25 22 28.37 -17 23.8 1.158 1.116 8.8
30 22 17.00 -19 59.3
May 5 22 01.37 -23 16.3 0.913 1.229 8.7
10 21 38.84 -27 28.5
11 21 33.15 -28 26.6 0.773 1.302 7.1
12 21 26.96 -29 27.4
13 21 20.21 -30 30.7 0.730 1.326 7.0
14 21 12.85 -31 36.5
15 21 04.80 -32 44.6 0.690 1.351 7.0
16 20 56.01 -33 54.7
17 20 46.39 -35 06.2 0.653 1.376 7.0
18 20 35.88 -36 18.5
19 20 24.39 -37 30.9 0.621 1.401 6.9
20 20 11.88 -38 42.2
21 19 58.28 -39 51.2 0.594 1.427 6.9
22 19 43.58 -40 56.5
23 19 27.78 -41 56.3 0.574 1.452 6.9
24 19 10.95 -42 49.0
25 18 53.19 -43 32.9 0.561 1.478 6.9
1987 March 14 (4345) Brian G. Marsden
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