Central Bureau for Astronomical Telegrams
IAUC 3929: 1984d
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Read IAUC 3930
Circular No. 3929
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 RUSSELL 4 (1984d)
J. Gibson provides the following precise positions, obtained
with the Palomar 1.2-m Schmidt telescope:
1984 UT R.A. (1950.0) Decl.
Mar. 10.42525 13 31 12.12 + 0 54 38.9
11.28567 13 30 56.29 + 0 56 55.3
11.40094 13 30 53.81 + 0 57 14.3
11.53428 13 30 50.88 + 0 57 35.6
21.29550 13 26 25.26 + 1 25 20.1
22.29723 13 25 50.59 + 1 28 14.4
The following elliptical orbital elements have been derived
by the undersigned from nine observations Mar. 2-22. The comet
passed some 0.6 AU from Jupiter in 1975.
T = 1984 Jan. 6.602 ET
Peri. = 91.565 e = 0.38147
Node = 71.805 1950.0 a = 3.43550 AU
Incl. = 6.249 n = 0.154782
q = 2.12495 AU P = 6.37 years
1984 ET R.A. (1950.0) Decl. p r m1
Mar. 21 13 26.58 + 1 24.5 1.235 2.192 13.9
31 13 20.12 + 1 52.1
Apr. 10 13 12.72 + 2 12.1 1.238 2.231 13.9
20 13 05.65 + 2 18.5
30 12 59.95 + 2 08.4 1.336 2.278 14.2
May 10 12 56.38 + 1 40.7
20 12 55.30 + 0 56.9 1.517 2.331 14.6
30 12 56.71 - 0 00.6
June 9 13 00.48 - 1 09.5 1.759 2.390 15.0
19 13 06.32 - 2 27.0
29 13 13.95 - 3 50.7 2.039 2.453 15.4
July 9 13 23.10 - 5 19.0
19 13 33.54 - 6 50.1 2.340 2.521 15.9
29 13 45.06 - 8 22.4
Aug. 8 13 57.51 - 9 54.9 2.649 2.591 16.3
18 14 10.75 -11 26.3
28 14 24.67 -12 55.6 2.953 2.664 16.6
1984 March 26 (3929) Brian G. Marsden
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