Central Bureau for Astronomical Telegrams
IAUC 4113: 1985l
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Circular No. 4113
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
COMET HARTLEY-GOOD (1985l)
Further precise positions have been reported as follows:
1985 UT R.A. (1950.0) Decl. m1 Observer
Sept.13.58698 1 03 38.74 -27 42 49.4 Good
14.29931 1 00 16.92 -27 47 04.0 Handley
14.30833 1 00 14.26 -27 47 07.0 "
14.37708 0 59 54.50 -27 47 33.4 Helin
16.39206 0 49 36.49 -27 56 23.1 Gilmore
16.39935 0 49 34.16 -27 56 25.5 "
16.64583 0 48 12.91 -27 57 35.4 11 Kaneda
17.22195 0 45 00.09 -27 59 18.3 Schwartz
17.23878 0 44 54.35 -27 59 21.4 Shao
17.68083 0 42 21.54 -28 00 07.8 Gilmore
17.68963 0 42 18.51 -28 00 09.0 "
19.71424 0 29 52.5 -28 01 46 Seki
19.72153 0 29 49.65 -28 01 46.5 11 "
20.65417 0 23 38.43 -28 00 12.0 Koishikawa
20.66137 0 23 35.68 -28 00 12.5 11 Aisawa
20.67917 0 23 28.33 -28 00 11.2 Seki
A. Good (U.K. Schmidt Telescope Unit, Siding Spring).
T. Handley (Burlington, New Jersey).
E. Helin, D. Schneeberger and S. Singer-Brewster (Palomar). 0.46-
m Schmidt. Measurer: M. Rudnyk.
A. C. Gilmore (Mt. John Observatory). Measurer: P. M. Kilmartin.
H. Kaneda (JCPM Sapporo Station). Measurer: K. Watanabe.
G. Schwartz and C.-Y. Shao (Oak Ridge). 1.5-m reflector.
T. Seki (Geisei).
M. Koishikawa (Sendai Obs., Ayashi Sta.). Measurer: S. Kasahara.
K. Aisawa (Sendai Municipal Observatory), Measurer: S. Kasahara.
The following improved parabolic orbital elements have been
derived by S. Nakano, Tokyo, from 17 observations Sept. 13-20:
T = 1985 Dec. 9.092 ET Peri. = 87.040
Node = 357.702 1950.0
q = 0.69435 AU Incl. = 79.897
Total visual magnitude estimates: Sept. 15.72 UT, 10.0 (R. H.
McNaught, Coonabarabran, N.S.W., 20 x 120 binoculars); 17.26, 9.5
(D. W. E. Green, Harvard, MA, 0.20-m reflector); 20.68, 9.8 (T.
Seki, Geisei, Japan, 0.20-m reflector).
1985 September 23 (4113) Brian G. Marsden
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