------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1332 1998 Aug 23 18.30UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.demon.co.uk/astronomer ------------------------------------------------------------------- SUPERNOVA 1998dm IN MCG -01-4-44 M. Modjaz, T. Shefler, E. Halderson, J. Y. King, W. D. Li, R. R. Treffers, and A. V. Filippenko, University of California at Berkeley, report their discovery of an apparent supernova during the course of the Lick Observatory Supernova Search (cf. IAUC 6627) with the 0.8-m Katzman Automatic Imaging Telescope (KAIT). SN 1998dm was found and confirmed on unfiltered images taken on Aug. 22.5 (mag about 16.8) and 23.4 UT (mag about 16.5). The new object is located at R.A. = 1h26m13s.97, Decl. = -6o06'14".0 (equinox 2000.0), which is about 13".8 west and 37".0 south of the nucleus of MCG -01-4-44 (= UGCA 17). A KAIT image obtained on Aug. 17.5 shows no star at this position (limiting mag about 18.5). IAUC 6993 (extract) Asteroid in Aries (cf EC 1329 & 1331) --------------------------------------- Based on a 3rd night of astrometry by Mark Armstrong & Nick James, the asteroid should be reasonably close to the positions given below over the next few days. Date R.A. (2000) Dec. Mag. Motion h m o "/hr P.A. 1998 Aug 24.00 2 5.43 +15 54.8 17.0 13 109 25.00 2 5.77 +15 53.0 17.0 13 112 26.00 2 6.08 +15 50.9 17.0 12 116 27.00 2 6.37 +15 48.7 17.0 12 120 28.00 2 6.63 +15 46.3 17.0 11 124 29.00 2 6.87 +15 43.8 17.0 10 129 30.00 2 7.08 +15 41.0 17.0 10 135 Martin Mobberley