Central Bureau for Astronomical Telegrams
IAUC 4756: 1989j
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Circular No. 4756
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 or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
COMET SHOEMAKER-HOLT (1989j)
The following precise positions have been reported:
1989 UT R.A. (1950) Decl. m1 Observer
Mar. 9.33680 10 45 22.88 +31 54 57.7 Shoemaker
9.36892 10 45 21.55 +31 55 06.7 13 "
10.13321 10 44 50.88 +31 57 59.8 Shao
10.22847 10 44 47.31 +31 58 17.3 Shoemaker
10.24942 10 44 46.02 +31 58 25.3 Shao
11.06285 10 44 13.56 +32 01 18.2 13.7 Maury
11.18400 10 44 09.02 +32 01 42.9 McCrosky
11.55914 10 43 54.33 +32 02 55.6 14 Niijima
11.56898 10 43 53.82 +32 02 58.5 "
11.57836 10 43 53.49 +32 03 00.1 "
11.58698 10 43 53.20 +32 03 01.7 13 Shimoda
11.58819 10 43 53.07 +32 03 02.5 Niijima
11.59583 10 43 52.93 +32 03 02.6 Shimoda
11.60347 10 43 52.60 +32 03 05.0 "
11.78507 10 43 45.03 +32 03 34.3 14 Koishikawa
11.79444 10 43 44.64 +32 03 33.9 "
C. S. Shoemaker, E. M. Shoemaker, and H. E. Holt (Palomar).
C.-Y. Shao and R. E. McCrosky (Oak Ridge). 1.5-m reflector.
Images slightly trailed; comet strongly condensed with coma.
A. Maury (Observatoire de la Cote d'Azur, Caussols). 0.9-m Schmidt
telescope, 103a-O plate, 25-min exposure. Faint 30" tail between
p.a. about 217 deg and 290 deg. Communicated by C. Pollas.
T. Niijima and K. Kanai (Ojima). 0.30-m f/5.8 reflector.
H. Shimoda and K. Kanai (Kamihoriguchi). 0.30-m f/3.8 reflector.
M. Koishikawa (Sendai Observatory).
The following preliminary parabolic orbital elements are from the
above observations, but it seems likely that this is a short-period comet.
T = 1988 Sept. 5.31 ET Peri. = 321.34
Node = 112.81 1950.0
q = 1.5584 AU Incl. = 20.90
1989 March 13 (4756) Daniel W. E. Green
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