Central Bureau for Astronomical Telegrams
IAUC 3812: 1983e
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Read IAUC 3813
Circular No. 3812
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 SUGANO-SAIGUSA-FUJIKAWA (1983e)
The following precise positions have been reported:
1983 UT R.A. (1950.0) Decl. Observer
May 11.48003 1 26 13.77 +40 04 51.4 Bus
12.48003 1 23 28.55 +40 16 28.8 "
13.47726 1 20 46.41 +40 26 42.9 "
18.31965 1 08 13.10 +40 59 10.4 McCrosky
S. J. Bus and E. H. Bus (Palomar Mountain Obseratory). 0.46-m
Schmidt telescope. Tail 1.5 deg to the northwest (on May 11).
R. E. McCrosky (Oak Ridge Observatory). Damon camera. Measurer:
D. W. E. Green. A visual observation by Green (20 x 80
binoculars) on May 18.30 UT gave m1 = 7.7, tail ~ 15' long.
The following improved parabolic orbital elements are from 13
observations May 9-18. The ephemeris could be uncertain by 1 deg or
more in mid-June but is given here for planning purposes.
T = 1983 May 1.3349 ET Peri. = 82.1737
Node = 82.3522 1950.0
q = 0.471240 AU Incl. = 96.6423
1983 ET R.A. (1950.0) Decl. p r m1
May 21 1 01.47 +41 07.3
26 0 48.25 +41 06.8 0.527 0.753 7.9
31 0 31.12 +40 43.3
June 5 23 59.78 +39 22.3 0.239 0.928 7.1
6 23 49.17 +38 46.0
7 23 35.68 +37 53.5 0.183 0.964 6.7
8 23 18.01 +36 33.7
9 22 54.08 +34 24.8 0.129 0.999 6.1
10 22 20.70 +30 42.0
11 21 33.42 +23 55.1 0.083 1.035 5.2
12 20 28.58 +11 46.1
13 19 10.11 - 5 30.8 0.063 1.070 4.8
14 17 53.47 -20 59.5
15 16 52.33 -30 16.2 0.091 1.105 5.7
16 16 08.41 -35 05.3
17 15 37.52 -37 37.8 0.140 1.140 6.8
18 15 15.40 -39 03.3
19 14 59.13 -39 54.5 0.195 1.175 7.7
1983 May 18 (3812) Brian G. Marsden
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