Central Bureau for Astronomical Telegrams
IAUC 3955: 1984 KD; 1984a
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Read IAUC 3956
Circular No. 3955
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
1984 KD
Ephemeris from elements on IAUC 3954:
1984 ET R.A. (1950.0) Decl. p r Mag.
June 19 12 21.74 -45 47.1 0.031 1.028 12.0
20 11 36.93 -55 08.3
21 10 34.11 -62 24.2 0.033 1.023 12.4
22 9 15.03 -66 34.7
23 7 54.57 -67 38.9 0.039 1.019 13.0
24 6 49.04 -66 37.2
25 6 01.92 -64 38.9 0.048 1.016 13.5
26 5 28.99 -62 26.0
27 5 05.55 -60 17.3 0.059 1.013 14.0
28 4 48.36 -58 19.6
29 4 35.33 -56 34.2 0.069 1.011 14.4
30 4 25.18 -55 00.6
July 1 4 17.08 -53 37.7 0.081 1.010 14.7
2 4 10.48 -52 23.9
3 4 05.01 -51 18.1 0.092 1.009 15.0
4 4 00.40 -50 19.1
9 3 45.31 -46 37.4 0.127 1.010 15.6
14 3 37.06 -44 11.5
19 3 31.82 -42 28.6 0.183 1.024 16.3
24 3 27.96 -41 13.3
PERIODIC COMET BRADFIELD (1984a)
Positions by A. Gilmore and P. Kilmartin, Mt. John Univ. Obs.:
1984 UT R.A. (1950.0) Decl. m2
Apr. 1.72222 23 09 35.09 -50 15 43.3
1.73229 23 09 36.56 -50 15 36.6
2.72894 23 12 06.78 -50 02 34.7
May 26.69675 00 33 07.43 -43 26 57.6 18
26.72985 00 33 08.90 -43 26 56.1 18
30.74851 00 35 44.82 -43 24 13.0
30.77999 00 35 46.25 -43 24 09.8
The following orbital elements, by the undersigned, confirm
this comet as being short-period (from 30 observations, Jan. 9-May
30, mean residual ~ 1"0): T = 1983 Dec. 27.7994 ET; Peri. = 219.1674,
Node = 356.1606, Incl. = 51.7937 (1950.0); e = 0.952404; a = 28.52173 AU;
n = 0.0064705; q = 1.357523 AU; P = 152.3 years. The ephemeris on
IAUC 3933 changes very little (Aug. 8 ET, Delta-R.A. = +0m01,
Delta-Decl. = +0.2).
1984 June 18 (3955) Daniel W. E. Green
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