------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1349 1998 Oct 22 21.40UT 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 1998eg IN UGC 12133 The object found by Tom Boles has been designated as above. This is the second supernova found by Tom and we extend the sincere congratulations of the TA membership to this marvellous achievement. In response to a request from the editor, Dave Balam in Victoria, Canada has provided the following report: Regarding the SN suspect in UGC 12133. The region was imaged tonight (Oct 21, editor) using the 1.82-m Plaskett telescope of the National Research Council of Canada. The supernova candidate is located at: RA 22h 39m 30s.29 DEC +08o 36' 20".6 (2000) of apparent brightness R = 17.6 on UT Oct. 21.25 which is 25".9 W and 25".3 S of the nucleus of UGC 12133. A nearby star of apparent brightness R = 15.8 is located at: RA 22h 39m 30s.08 DEC +08o 37' 22".7 (2000) An image of the candidate may be viewed at: http://astrowww.phys.uvic.ca/~balam in the 'current supernovae' link. The following announcement has now appeared on IAUC 7033: G. M. Hurst, Basingstoke, England, reports the discovery by Tom Boles, Wellingborough, of a supernova (mag 16.0) on 80-s unfiltered CCD images obtained on Oct. 19.906 UT for the U.K. Supernova Patrol with a 0.26-m reflector; it was not visible on Sept. 17 (limiting mag 18). Boles provides the precise position R.A. = 22h39m30s.26, Decl. = +8 36'21".3 (equinox 2000.0). Additional reported CCD magnitudes (unfiltered unless otherwise noted): Oct. 19.896, 15.7 (M. Armstrong, Rolvenden, England); 20.88, R about 16.4 (S. Benetti, F. Ghinassi, E. Marchetti, G. Tessicini, C. Vuerli, and A. Zacchei, La Palma); 20.995, 15.5 (Armstrong); 21.25, R = 17.6 (D. Balam, University of Victoria); 21.385, 16.2 (Y. Sano, Nayoro, Hokkaido, Japan). Additional reported position end figures: 30s.37, 21".0 (Armstrong, 0.26-m reflector); 30s.29, 20".6 (Balam, 1.82-m Plaskett telescope); 30s.35, 20".5 (Sano, 0.28-m reflector; communicated by H. Yamaoka, Kyushu University). Balam gives the supernova's offset as 25".9 west and 25".3 south of the nucleus of UGC 12133, and notes that there is nearby star (R = 15.8) at position end figures 30s.08, 37'22".7; Balam has posted an image of SN 1998eg at http://astrowww.phys.uvic.ca/~balam/sn97do.html. SUPERNOVA 1998ef IN UGC 646 W. D. Li, M. Modjaz, E. Halderson, T. Shefler, J. Y. King, M. Papenkova, 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 with the 0.8-m Katzman Automatic Imaging Telescope (KAIT). SN 1998ef was discovered on an unfiltered image taken on Oct. 18.3 UT (mag about 15.2), and confirmed on an earlier image taken on Oct.14.3 (mag about 16.7). SN 1998ef is located at: R.A. = 1h03m26s.87, Decl. = +32o14'12".4 (2000), which is about 6".1 east and 2".1 south of the nucleus of UGC 646. IAUC 7032 (extract) Guy M Hurst