------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2535 2009 Mar 23 22.24UT 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 ------------------------------------------------------------------- CLASSICAL NOVA IN NGC 2403 M. Kasliwal, Caltech et. al. report on The Astronomer's Telegram 1984 that on 2009 Mar 14.16UT, P60-FasTING (Palomar 60-inch Fast Transients In Nearby Galaxies) discovered an optical transient in NGC2403 at: RA 07h36m35.00s DEC+65 40'20.8" (2000) offset from the nucleus by 101.0"W, 252.0"N. P60-NGC2403-090314 had a brightness of g = 20.6 +/- 0.1 at discovery. At peak, on Mar 15.147, the apparent g = 19.6 corresponded to Mg = -8.2, at the distance of NGC2403. It was not detected by P60 to g > 21.8 on Mar 2.164. Follow-up spectroscopy on Mar 20.145 with the Double Beam Spectrograph on the Palomar Hale telescope reveals prominent Balmer emission features (H-alpha through H-delta) and allows classification as a classical nova. SUPERNOVA 2009W IN ANONYMOUS GALAXY Discovery by Catalina Sky Survey team of a possible supernova (CBET 1683): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009W Feb. 2.55 16 23 45.60 +11 44 07.0 17.9 17.5"W,16.2"S Editor: Announcement delayed due to a missing circular from CBAT. SUPERNOVA 2009af IN UGC 1551 Discovery by Giancarlo Cortini, Italy of a possible supernova (CBET 1697): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009af Feb 16.75 02 03 36.37 +24 04 40.9 15.0 15.5"W,10.4"N A spectrogram suggests it is of type II. SUPERNOVA 2009ag IN ESO 492-2 Discovery by Tim Puckett, R Gagliano and Jack Newton, USA of a possible supernova (CBET 1698): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009ag Feb 18.16 07 11 40.81 -26 41 06.3 15.9 4.8"E,72"N SUPERNOVA 2009ah IN ESO 171-4 Discovery by CHASE Project of a possible supernova (CBET 1699): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009ah Feb 19.22 11 59 12.06 -53 24 06.5 16.0 22.5"E,25.8"N SUPERNOVA 2009ai IN UGC 9757 Discovery by Tim Puckett, M Peoples and Jack Newton, USA of a possible supernova (CBET 1700): SN 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009ai Feb 19.45 15 11 35.92 +05 23 47.5 17.6 21.8"W, 4.0"S Guy M Hurst