Central Bureau for Astronomical Telegrams
IAUC 4451: 1987M; 1987 QB; 1987m
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Circular No. 4451
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
SUPERNOVA 1987M IN NGC 2715
B. Szeidl, Konkoly Observatory, reports that M. Lovas has
discovered a supernova 2" east and 20" north of the nucleus of NGC
2715 (R.A. = 9h01m.9, Decl. = +78 17', equinox 1950.0). On Sept. 21.90 UT
it was of mpg = 15.0.
1987 QB
S. Singer-Brewster reports his discovery of a fast-moving
asteroidal object with the 0.46-m Palomar Schmidt in the course of
the International Near-Earth Asteroid Survey under the direction
of E. Helin. D. Schneeberger and J. Alu assisted with the
observations. The Aug. 29 positions below are by J. Gibson.
1987 UT R.A. (1950) Decl. Mag.
Aug. 25.38108 22 45 31.75 - 7 35 46.5 16.8
25.40434 22 45 36.32 - 7 35 54.7
27.28924 22 52 00.45 - 7 45 41.4
27.33472 22 52 08.67 - 7 45 55.4
29.22500 22 58 02.96 - 7 55 04.6
29.50799 22 58 48.98 - 7 56 22.4
The object appears to be of Amor type:
T = 1987 Aug. 2.86 ET
W = 156.90 e = 0.5815
O = 153.04 1950.0 a = 2.7296 AU
i = 3.44 n = 0.21855
q = 1.1424 AU P = 4.51 years
1987 ET R.A. (1950) Decl. Delta r V
Sept.22 23 41.23 - 8 43.9 0.291 1.292 17.3
27 23 45.98 - 8 37.8
Oct. 2 23 50.14 - 8 25.7 0.357 1.350 18.0
7 23 53.97 - 8 08.2
12 23 57.64 - 7 45.7 0.437 1.413 18.7
PERIODIC COMET BROOKS 2 (1987m)
Total visual magnitudes by A. Hale, Las Cruces, NM (0.41-m
reflector): Aug. 30.48 UT, 14.2; Sept. 17.33, 13.6; 20.40, 13.5.
1987 September 22 (4451) Brian G. Marsden
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