------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2499 2008 Nov 13 15.22UT 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 Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- 1998 WV_24 S. D. Benecchi, et. al., Southwest Research Institute, report on IAUC 8998 that the transneptunian object 1998 WV_24 is a binary. The observations were made during 2007 Aug. 27.1069-27.1375 UT with the Planetary Camera of the Wide Field Planetary Camera 2 on the Hubble Space Telescope, using the F606W filter (wide V) with one 260-s exposure at four dithered positions on the detector. The two components were separated by an angular distance of 0".051 +/- 0".002, with the secondary fainter by 0.3 magnitude. The secondary was located at 0".033 +/- 0".003 in RA and 0".039 +/- 0".003 in DEC relative to the primary. SUPERNOVA 2008gm IN NGC 7530 Discovery by the CHASE project of a possible supernova (CBET 1549): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008gm Oct. 22.09 23 14 12.39 -02 46 52.4 17.0 7.3"E, 7.0"S It is also present in images taken on Oct. 16.08 (at mag approximately 17.2 +/- 0.2) and on Oct. 19.08 (at mag approximately 17.3 +/- 0.2). SUPERNOVA 2008gn IN ANONYMOUS GALAXY Discovery by the Catalina Sky Survey of a possible supernova (CBET 1552): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008gn Sep. 24.42 04 06 29.50 +14 52 14.0 17.8 10.3"E, 9.4"S J. M. Silverman et. al., find that 2008gn is a type-Ia supernova from an optical spectrum obtained on Oct. 22.42 using the Kast spectrograph on the Lick 3-m telescope. SUPERNOVA 2008go IN ANOYMOUS GALAXY Discovery by LOSS of a possible supernova (CBET 1553): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008go Oct. 22.15 22 10 44.83 -20 47 17.2 18.8 11.6"E, 8.2"N SUPERNOVA 2008gp IN MCG +00-9-74 Discovery by LOSS of a possible supernova (CBET 1555): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008gp Oct. 27.42 03 23 00.73 +01 21 42.8 18.4 10.9"E,11.7"S SUPERNOVA 2008gr IN IC 1579 Discovery by Puckett Observatory Supernova Search of a possible supernova (CBET 1557): SN 2008 UT R.A. (2000.0) Decl. Mag. Offset 2008gr Oct. 29.18 00 45 32.28 -26 34 20.2 17.2 0.7"W,24.8"S Guy M Hurst