Central Bureau for Astronomical Telegrams
IAUC 4437: 1987 PA; 1987s
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 4438
Circular No. 4437
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
1987 PA
The following precise positions have been measured by S. Singer
Brewster of a fast-moving asteroidal object discovered by Jeff
Phinney in the course of Palomar Sky Survey II:
1987 UT R.A. (1950) Decl. Mag.
Aug. 1.37153 22 20 37.61 - 2 44 11.2 18.2
1.42014 22 20 33.82 - 2 41 28.3
2.37708 22 19 24.89 - 1 46 52.6
2.39097 22 19 23.72 - 1 46 06.9
5.37639 22 15 41.70 + 0 55 08.9
5.39028 22 15 40.63 + 0 55 46.4
Orbital elements from the above observations:
T = 1987 June 30.41 ET
W = 337.35 e = 0.5636
O = 308.67 1950.0 a = 2.7984 AU
i = 16.43 n = 0.21054
q = 1.2212 AU P = 4.68 years
1987 ET R.A. (1950) Decl. Delta r V
Aug. 13 22 06.04 + 6 41.6 0.329 1.321 17.5
18 21 59.97 + 9 36.8
23 21 54.46 +11 53.4 0.380 1.367 17.9
28 21 49.76 +13 35.7
Sept. 2 21 46.04 +14 48.9 0.445 1.420 18.3
COMET BRADFIELD (1987s)
Further precise positions have been reported as follows:
1987 UT R.A. (1950) Decl. Observer
Aug. 14.45555 14 14 06.03 -22 36 10.4 Hioki
14.46180 14 14 06.90 -22 36 05.4 "
15.46874 14 15 27.56 -22 21 16.6 McNaught
15.48645 14 15 28.98 -22 21 01.3 "
16.40354 14 16 44.28 -22 07 46.1 Herald
T. Hioki and S. Hayakawa (Okutama). Communicated by T. Kobayashi.
R. H. McNaught (Siding Spring Observatory). Uppsala Schmidt.
D. Herald (Kambah, near Canberra).
1987 August 18 (4437) Brian G. Marsden
Read IAUC 4438
Our Web policy. Index to the CBAT/MPC/ICQ pages.
