------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2851 2012 Aug 22 13.42UT 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 J174902.10+191331.2 NEW BRIGHT CV D. Denisenko et. al., Moscow State University, reports on The Astronomer's Telegram 4324 the discovery of new bright cataclysmic variable object in Hercules. It was recorded with the MASTER-Amur auto-detection system at: RA 17h 49m 02.10s DEC +19 13m 31.2s (2000) on 2012 Aug 21.51684UT. The OT unfiltered magnitude is 13.3m (limit 17.4m). It is also visible on 2 images taken on 2012 Aug-20.542 and 20.573 UT with the same unfiltered magnitude 13.3. Nothing was visible at this position on the unfiltered image of 2012 Aug 19.521UT to limiting magnitude 17.5m. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/J17490210+1913312.jpg There is nothing at this position in 2MASS, GCVS and AAVSO VSX. This area is not covered by GALEX, SDSS and CRTS. There is a star in the USNO-B1.0 catalog within 2" of the OT named USNO-B1.0 1092-0283596 with the following coordinates, proper motions and magnitudes: 17 49 02.087 +19 13 29.52 pmRA=0 pmDE=0 B1=20.29 R1=18.64 B2=20.06 R2=17.79 I=18.64 NEAT images on 12 nights from 1998 June 24 to 2005 Aug. 30 checked. In total 36 images were taken. The object was in outburst on 2003 Aug. 07 and then again on 2005 Aug. 13 and 30, but at quiescence on all other images. Based on the amplitude of variability, short rise time and presence of previous outbursts we conclude that MASTER OT J174902.10+191331.2 is a new cataclysmic variable (dwarf nova). SUPERNOVA 2012dx IN PGC 63016 = PSN J19171735+3325487 2012dx Jly 26.95 19 17 17.35 +33 25 48.7 16.9 2 "E 15 "N L. Tomasella: spectrum July 30 type-Ib a few days after maximum. (Circular with this discovery delayed) SUPERNOVA 2012ec IN NGC 1084 (L. MONARD) 2012ec Aug 11.03 02 45 59.89 -07 34 25.0 14.5 1 "W 17 "N M. Childress: spectrum type II-P at a young age. SUPERNOVA 2012ed (CSS) 2012ed Aug 13.18 15 39 36.45 -02 41 00.7 17.6 1.3"W 1.0"S L. Tomasella: spectrum Aug 17 type-II similar to SN 2009bw about 50 days after explosion. SUPERNOVA 2012ee IN IC 5050 (CSS) 2012ee Aug 13.24 20 45 15.28 -05 37 22.1 16.4 3.4"E L. Tomasella: spectrum Aug 17 type-Ia similar to SN 2003du around maximum. Guy M Hurst