------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1494 2000 Feb 09 19.43UT 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 2000F IN IC 302 M. Papenkova, and W. D. Li, University of California at Berkeley, on behalf of the Lick Observatory Supernova Search report the discovery of an apparent supernova on unfiltered images taken on Jan. 29.2 and 30.2 (both with mag about 17.5) with the 0.8-m Katzman Automatic Imaging Telescope (KAIT). SN 2000F is located at R.A. = 3h12m52s.71, Decl. = +4 42'34".4 (2000), which is 21".2 east and 8".8 north of the nucleus of IC 302. An unfiltered KAIT image taken on Jan. 10.2 already showed a hint of the new object, while an image taken on 1999 Dec.30.3 showed nothing at the position of SN 2000F (limiting mag 19.0). IAUC 7353 COMET P/2000 C1 (HERGENROTHER) Carl Hergenrother, Lunar and Planetary Laboratory, reported a new object (discovery observation below) that showed an 11" tail in p.a. 300 deg on one of four CCD images taken with the 0.41-m Schmidt telescope at Catalina. Following posting on The NEO Confirmation Page, numerous CCD observers have reported cometary appearance, as follows: Feb. 5.3 UT, coma diameter about 12", brighter 60" tail in p.a. 290 deg, extending more faintly to 180" (J. E. McGaha, Tucson, AZ, 0.62-m reflector); Feb. 5.5, tail about 12" long toward the northwest (G. Billings, Calgary, AB, 0.36-m reflector); Feb. 5.7, slightly diffuse with very faint tail about 10" long to the northwest (G. J. Garradd, Loomberah, N.S.W., 0.45-m reflector); Feb. 6.1, coma diameter 0'.1, tail 0'.3 long in p.a. 290 deg (P. Pravec and P. Kusnirak, Ondrejov, 0.65-m reflector); Feb. 6.4, faint tail < 10" long in p.a. about 290 deg (D. T. Durig, Sewanne, TN). Prediscovery observations by LINEAR on Jan. 4 and 8 have also been identified. Complete astrometry and the following orbital elements appear on MPEC 2000-C30: 2000 UT R.A. (2000) Decl. m1 Feb. 4.45802 12 10 38.72 + 4 53 6.1 17.1 T = 2000 Mar. 18.7279 TT Peri. = 50.6637 e = 0.410396 Node = 127.1207 2000.0 q = 2.099992 AU Incl. = 6.1192 a = 3.561702 AU n = 0.1466283 P = 6.722 years IAUC 7357 SUPERNOVA 2000G IN UGC 1773 T. Puckett, Mountain Town, GA, reports his discovery of an apparent supernova (mag 17.2) on an unfiltered CCD frame (limiting mag 20.1) taken with the Puckett Observatory 0.60-m automated supernova patrol telescope on Feb. 5.04 UT. SN 2000G is located at R.A. = 2h18m15s.27, Decl. = +13o12'19".4 (equinox 2000.0), which is 0".13 east and 3".3 north of the centre of UGC 1773. The new object was also present on an unfiltered CCD frame taken on Feb. 7.00, but it was not present on a frame taken on 1999 Sept. 7.34 -- nor does SN 2000G appear on a Palomar Sky Survey images taken on 1990 Oct. 14 (limiting mag about 21.2) or 1950 Aug. 14 (limiting mag about 20.0). IAUC 7358 (extract) Guy M Hurst