Central Bureau for Astronomical Telegrams
IAUC 3864: 1983p
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 3865
Circular No. 3864
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 SHOEMAKER (1983p)
The following precise positions have been reported:
1983 UT R.A. (1950.0) Decl. m1 Observer
Sept.14.29375 23 38 47.95 +17 55 57.1 12 Skiff
14.26319 23 38 51.90 +17 56 41.6 "
14.30486 23 38 46.37 +17 55 39.6 Dunbar
14.32569 23 38 43.92 +17 55 12.3 "
15.24298 23 36 48.96 +17 32 33.2 McCrosky
16.19176 23 34 49.73 +17 08 46.4 "
B. Skiff and E. Bowell (Lowell Observatory, Anderson Mesa Station).
0.33-m photographic telescope. Measurer: C. Shoemaker.
R. S. Dunbar (Palomar Mountain Observatory). 1.2-m Schmidt
telescope. Measurer: S. Swanson. Tail 2' long to the northeast.
R. E. McCrosky (Oak Ridge Observatory). 0.40-m astrograph.
Total visual magnitude and coma diameter estimate by C. S.
Morris, Harvard, MA (0.25-m reflector): Sept. 15.30 UT, 11.5, ~
1'2. The comet was diffuse with a small condensation.
The following parabolic orbital elements, necessarily rather
uncertain, satisfy the eight observations Sept. 7-16 within ~ 3" :
T = 1983 Nov. 23.01 ET Peri. = 175.84
Node = 163.98 1950.0
q = 3.3469 AU Incl. = 137.62
1983 ET R.A. (1950.0) Decl. p r m1
Sept. 3 0 01.85 +22 07.6 2.562 3.432 11.4
8 23 51.82 +20 22.9
13 23 41.50 +18 27.5 2.465 3.413 11.3
18 23 31.06 +16 22.7
23 23 20.69 +14 10.6 2.423 3.396 11.2
28 23 10.58 +11 53.7
Oct. 3 23 00.88 + 9 34.6 2.439 3.381 11.2
8 22 51.75 + 7 16.1
13 22 43.31 + 5 00.9 2.512 3.369 11.3
18 22 35.62 + 2 51.0
23 22 28.74 + 0 48.1 2.633 3.360 11.4
28 22 22.68 - 1 06.8
Nov. 2 22 17.44 - 2 53.0 2.791 3.353 11.5
1983 September 16 (3864) Brian G. Marsden
Read IAUC 3865
Our Web policy. Index to the CBAT/MPC/ICQ pages.
