Central Bureau for Astronomical Telegrams
IAUC 4464: 1987x; 1987 SB
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Read IAUC 4465
Circular No. 4464
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
PERIODIC COMET WEST-KOHOUTEK-IKEMURA (1987x)
This comet has been independently recovered by T. Seki,
Geisei, as follows:
1987 UT R.A. (1950) Decl. m1
Oct. 1.82188 10 04 59.9 +26 47 11 18
1987 SB
V. Shkodrov reports the discovery of a fast-moving asteroidal
object by E. Elst, V. Ivanova and himself. Available positions:
1987 UT R.A. (1950) Decl. Mag. Observer
Sept.20.39566 0 42 20.95 - 3 50 03.0 17 Helin
20.42431 0 42 17.12 - 3 50 21.7 "
22.99624 0 36 44.49 - 4 16 04.0 Elst
23.01620 0 36 41.98 - 4 16 15.2 "
27.33368 0 27 59.20 - 4 54 06.7 17 Shoemaker
30.35972 0 22 22.60 - 5 16 38.3 "
E. Helin et al. (Palomar). Prediscovery images. Measurer J. Alu.
E. Elst et al. (Bulgarian National Observatory, Smolyan).
C. Shoemaker and E. Shoemaker (Palomar). 0.46-m Schmidt.
T = 1987 June 6.681 ET
W = 167.393 e = 0.64965
O = 83.021 1950.0 a = 2.15920 AU
i = 2.991 n = 0.310645
q = 0.75647 AU P = 3.17 years
1987 ET R.A. (1950) Decl. Delta r V
Sept.22 0 38.87 - 4 06.2 0.634 1.629 16.0
27 0 28.63 - 4 51.3
Oct. 2 0 19.53 - 5 27.3 0.725 1.721 16.4
7 0 11.70 - 5 54.2
12 0 05.17 - 6 12.5 0.840 1.810 17.0
17 23 59.94 - 6 22.8
22 23 55.96 - 6 25.9 0.975 1.897 17.6
27 23 53.14 - 6 22.7
Nov. 1 23 51.41 - 6 13.8 1.129 1.981 18.1
6 23 50.64 - 6 00.0
11 23 50.73 - 5 42.0 1.299 2.061 18.6
1987 October 4 (4464) Brian G. Marsden
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