------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2357 2007 Jly 20 13.21UT 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 ------------------------------------------------------------------- NOVA MESSIER 31 2007 12 V. Burwitz (Max-Planck-Institut fuer extraterrestrische Physik, MPE & Observatori Astronomic de Mallorca, OAM), et, al., report on The Astronomer's Telegram 1146 their discovery of a optical nova in Messier 31 on four consecutive dithered R filter CCD images obtained on 2007 July 19.00741, 19.00890, 19.01041,19.01193, with corresponding R magnitudes of 18.8, 18.7, 18.8, 18.5 obtained at the 1.3m Ritchey Chretien f/7.5 telescope at Skinakas Observatory, Crete, Greece. It was also detected on 3 Halpha images, the stacked image (2007 July 19.06966) yields a corresponding Halpha magnitude 18.3. The position obtained for the nova candidate is: RA 00h 43m 0.29s , DEC +41 14'52.94" (2000). A stacked image from 2007 July 18.01440 shows no object at the position of the nova candidate brighter than the limiting R magnitude of ~20.5. SUPERNOVA 2007fp IN NGC 3340 As long ago as June 1, a possible supernova in NGC 3340 was announced on CBET 976, found on Feb. 26.786UT by T.-H. Liou et.al during the Taiwan Supernova Survey. The object is located at: RA 10h 42m 18.21s DEC -0 22'38.4" (2000), 3.6"E and 1.6"S of the centre of the host galaxy. The new object is close to the position of supernova 2005O. In a new report on CBET 1000, J. M. Silverman, et. al., University of California, Berkeley, report that inspection of CCD spectra of June 9 UT with the 3-m Shane reflector (+ Kast) at Lick Observatory, shows it is in fact a type-II supernova. SUPERNOVA 2007fq IN MCG -04-48-19 Discovery by LOSS of a possible supernova (CBET 1001): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007fq Jly 14.35 20 34 55.80 -23 06 15.8 17.3 3.3"W, 2.8"N SUPERNOVA 2007fr IN ANONYMOUS GALAXY Discovery by LOSS of a possible supernova (CBET 1001): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007fr Jly 14.40 21 37 08.74 +00 26 13.8 18.9 5.5"E,33.5"S Type-Ia supernova a few days before maximum according to a spectrum of July 15. SUPERNOVA 2007fs IN ESO 601-G5 Discovery by D. Winslow and W. Li of a possible supernova (CBET 1002): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007fs Jly 15.44 22 01 40.44 -21 30 29.6 15.4 2.5"W,12.4"N A spectrum by J. C. Hill of July 17 shows it to be a reddened type-Ia supernova around maximum light. SUPERNOVA 2007ft IN NGC 4677 Discovery by the TAROT collaboration, La Silla of a possible supernova (CBET 1004): SN 2006 UT R.A. (2000.0) Decl. Mag. Offset 2007ft Jly 15.02 12 47 03.7 -41 35 22 16.0R 73" E,21" S Guy M Hurst