Central Bureau for Astronomical Telegrams
IAUC 3866: 1983 RD
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Read IAUC 3867
Circular No. 3866
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
1983 RD
Continuation to the ephemeris on IAUC 3865:
1983 ET R.A. (1950.0) Decl. p r Mag.
Sept.17 1 30.97 + 5 09.3 0.084 1.078 13.4
18 1 42.25 + 3 51.8
19 1 53.35 + 2 34.2 0.084 1.076 13.5
20 2 04.20 + 1 17.0
21 2 14.75 + 0 01.1 0.086 1.074 13.6
22 2 24.96 - 1 13.0
23 2 34.80 - 2 24.8 0.088 1.073 13.7
24 2 44.25 - 3 33.9
25 2 53.27 - 4 40.0 0.092 1.072 13.9
26 3 01.87 - 5 42.9
27 3 10.03 - 6 42.4 0.096 1.072 14.0
28 3 17.77 - 7 38.6
29 3 25.07 - 8 31.5 0.101 1.072 14.2
30 3 31.96 - 9 21.1
Oct. 1 3 38.45 -10 07.6 0.106 1.073 14.3
2 3 44.54 -10 51.0
3 3 50.26 -11 31.5 0.112 1.074 14.5
8 4 13.80 -14 15.4
13 4 30.40 -16 07.6 0.145 1.087 15.1
18 4 41.77 -17 21.6
23 4 49.15 -18 06.8 0.180 1.111 15.6
28 4 53.44 -18 29.0
Nov. 2 4 55.26 -18 31.3 0.218 1.146 15.9
7 4 55.17 -18 14.9
12 4 53.68 -17 40.8 0.258 1.189 16.3
17 4 51.26 -16 50.3
22 4 48.30 -15 45.3 0.303 1.239 16.6
27 4 45.12 -14 27.6
Dec. 2 4 42.02 -12 59.1 0.356 1.294 16.9
A. W. Harris, Jet Propulsion Laboratory, reports that photometry
at Table Mountain Observatory on Sept. 13.3 and 14.3 UT gave
V = 12.68 (peak-to-peak variation +/- 0.07 mag), B-V = + 0.84. R. L.
Millis, Lowell Observatory, obtained V = 12.68, B-V = +0.83 +/- 0.02,
U-B = +0.51 +/- 0.03 on Sept. 14.30 UT. Both observers suggested a
rotation period of ~ 5 hr, although ~ 2.5 hr is a possibility.
1983 September 16 (3866) Brian G. Marsden
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