------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2869 2012 Nov 19 20.55UT 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 ------------------------------------------------------------------- MASTER OT J061017.75+414545.7 - new CV S. Shurpanov, et. al., Moscow State University, SAI reports on The Astronomer's Telegram 4585 that MASTER-Amur auto-detection system discovered OT source at: RA 06h 10m 17.75s DEC +41d 45m 45.7s on 2012 Nov 16.60613UT. The OT unfiltered magnitude is 16.9m (limit 17.8m). The OT is seen in 2 images. There is no minor planet at this place. They have reference image without OT on 2011 Jan 26.61419UT with magnitude limit in 'R' filter 19.0m. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/061017.75414545.7.png Nothing is present at this position in 2MASS, USNO-B1.0, 1RXS and GCVS catalogs, as well as in AAVSO VSX. This area is not covered by CRTS, SDSS and GALEX. There is a faint star visible at the limit of combined Palomar plates (~22.5m). Palomar/NEAT project has 24 images of this field on 4 nights from 2001 Dec. 20 to 2002 Feb. 26. The faint object (mag ~22.5) is also visible on the sum of NEAT images. The comparison of NEAT and color-combined DSS images is posted at http://master.sai.msu.ru/static/OT/J061017+414545-NEAT-BRIR.jpg The galactic latitude is +11 deg. Based on the amplitude of variability we suggest that MASTER OT J061017.75+414545.7 most likely is a new cataclysmic variable (dwarf nova) in outburst. Follow up observations are required. SUPERNOVA 2012ex IN UGC 838 (CSS) 2012ex Sep 16.28 01 18 45.97 +14 59 40.2 17.5 1.8"E 4.5"N Simone Leonini, Siena, Italy, reports the independent discovery by G. Guerrini, P. Rosi, D. Soldateschi, L. M. Tinjaca Ramirez, and himself of this apparent supernova at mag about 15.5 on an unfiltered CCD image (limiting mag about 18.0) taken on 2012 Sept. 10.9097 UT at the Montarrenti Observatory in the course of an automatic survey of the Italian Supernovae Search Project using a 0.53-m f/8.7 Ritchey-Chretien telescope (+ Apogee Alta U47 CCD camera). The new object is located at R.A. = 1h18m46s.05, Decl. = +14d59'39".9 (equinox 2000.0), which is 2" east and 3" north of the nucleus of the galaxy UGC 838. M. Turatto: spectrum Sept 18 typical of type-Ib. SUPERNOVA 2012ey IN PGC 9159 (MOUNT LEMMON SURVEY) 2012ey Sep 16.44 02 24 50.64 +16 10 54.3 18.6 8.2"W 15.6"N M. Turatto: spectrum Sept 18 type-II or type-IIB about one week past maximum SUPERNOVAE 2012ez AND 2012fa (SUDARE/VOICE COLLABORATION) 2012ez Sep 8.30 03 35 16.368 -27 29 49.21 23.2 1.1"E 0.1"S 2012fa Sep 14.24 03 34 59.022 -27 51 55.43 23.4 -- A spectrogram of 2012ez: normal type-Ia supernova A spectrogram of 2012fa, bright type-Ia supernova SUPERNOVA 2012fb (ROTSE) 2012fb Sep 17.99 01 50 51.2 +33 08 25.4 17.0 0.1"W 2.7"N J. Caldwell: spectrum Sept 22 type-Ia a few days before maximum Guy M Hurst