Central Bureau for Astronomical Telegrams
IAUC 4718: 1989e; 1989a
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Read IAUC 4719
Circular No. 4718
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 (1989e)
The following precise positions have been reported:
1989 UT R.A. (1950) Decl. m1 Observer
Jan. 15.72639 10 09 43.79 +20 32 05.6 14.0 Sugie
15.74340 10 09 42.81 +20 32 41.5 "
16.73802 10 08 27.12 +21 12 27.0 13.5 Kojima
16.78137 10 08 23.67 +21 14 09.1 "
J. Sugie and H. Tsujino (Dynac Astronomical Observatory). Comet condensed;
tail 5' in p.a. 210 deg. Communicated by T. Kobayashi.
T. Kojima (YGCO Chiyoda Observatory). Tail 6' in p.a. 210 deg.
COMET YANAKA (1989a)
The following precise positions were obtained by M. Koishikawa at
the Sendai Observatory's Ayashi Station:
1989 UT R.A. (1950) Decl. m1
Jan. 13.83819 14 08 41.25 +13 27 58.4 12
13.85417 14 08 42.83 +13 28 18.1
14.83333 14 10 32.53 +13 50 09.4
Parabolic elements by S. Nakano from 34 observations Jan. 2-14:
T = 1988 Nov. 1.136 ET Peri. = 351.784
Node = 156.459 1950.0
q = 1.89892 AU Incl. = 52.478
1989 ET R.A. (1950) Decl. Delta r m1
Jan. 14 14 08.99 +13 31.6 1.890 2.107 14.6
19 14 18.15 +15 25.5
24 14 26.89 +17 25.4 1.845 2.162 14.7
29 14 35.14 +19 30.6
Feb. 3 14 42.87 +21 40.3 1.814 2.223 14.8
8 14 50.01 +23 53.5
13 14 56.51 +26 08.9 1.801 2.287 14.9
18 15 02.31 +28 25.1
23 15 07.39 +30 40.9 1.807 2.355 15.0
1989 January 17 (4718) Brian G. Marsden
Read IAUC 4719
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