Central Bureau for Astronomical Telegrams
IAUC 3774: (1620)
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Read IAUC 3775
Circular No. 3774
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
(1620) GEOGRAPHOS
Recent observations at the Oak Ridge and Lowell Observatories
indicate that the published ephemeris (Efemeridy Malykh Planet for
1983, p. 253), based on observations 1951-1965, is in error by up
to 0.5 degree. The following orbital elements, derived by the
undersigned from observations through 1976, are in excellent agreement
with the recent observations and should serve those making
physical observations during the object's current approach.
T = 1983 May 17.93598 ET Epoch 1983 Mar. 7.0 ET
Peri. = 276.52775 e = 0.3354120
Node = 336.76704 1950.0 a = 1.2445589 AU
Incl. = 13.32756 n = 0.70987339
q = 0.8271189 AU P = 1.388 years
1983 ET R.A. (1950.0) Decl. p r Mag.
Feb. 25 11 01.39 + 6 38.9 0.162 1.150 13.2
Mar. 2 10 39.04 + 0 31.3
7 10 05.88 - 8 25.6 0.109 1.095 12.5
8 9 57.53 -10 36.5
9 9 48.51 -12 55.1 0.102 1.084 12.5
10 9 38.77 -15 20.7
11 9 28.27 -17 52.5 0.096 1.073 12.5
12 9 16.97 -20 29.0
13 9 04.85 -23 08.5 0.092 1.062 12.6
14 8 51.89 -25 49.1
15 8 38.09 -28 28.1 0.090 1.051 12.7
16 8 23.47 -31 03.3
17 8 08.09 -33 32.0 0.090 1.040 12.9
18 7 52.02 -35 51.9
19 7 35.37 -38 01.0 0.091 1.030 13.1
20 7 18.28 -39 57.8
21 7 00.90 -41 41.3 0.094 1.019 13.3
22 6 43.42 -43 11.0
23 6 26.00 -44 26.8 0.098 1.008 13.5
24 6 08.82 -45 29.4
25 5 52.05 -46 19.4 0.104 0.998 13.8
26 5 35.80 -46 57.9
27 5 20.13 -47 26.2 0.111 0.988 14.0
28 5 05.22 -47 45.2
29 4 51.07 -47 56.3 0.118 0.977 14.2
1983 February 22 (3774) Brian G. Marsden
Read IAUC 3775
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