------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 3148 2016 Feb 27 18.14UT 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 J073325.52+373744.9 O. Gress et. al., Lomonosoc, MSU and others report on The Astronomers Telegram 8730 the discovery and outburst of MASTER OT J073325.52+373744.9 at: RA 07h 33m 25.52s DEC +37d 37m 44.9s on 2016 Feb 24.904UT at unfiltered magnitude 15.1 (limiting magnitude 18.0). The OT is recorded on three images and there is no minor planet at this place. They have the following reference images without OT: 2015-11-20 20:16:45 19.6 (MASTER-Tunka) 2015-09-24 20:24:29 19.1 (MASTER-Tunka) 2015-02-18 14:46:28 19.5 (MASTER-Tunka) 2014-10-26 01:46:21 20.4 (MASTER-Kislovodsk) 2013-11-27 19:22:56 19.5 (MASTER-Tunka) 2012-01-27 17:01:13 20.2 (MASTER-Tunka) 2011-11-05 20:39:29 20.3 (MASTER-Tunka) 2011-01-25 14:17:22 20.1 (MASTER-Tunka) 2011-10-28 02:23:13 20.3 (MASTER-Kislovodsk) There is a SDSS star with u=22.1(=-0.3),g=21.9(+-0.1),r=22.1(=-0.2),i=22.5; They suggest the dwarf nova has an outburst with an amplitude of at least 7 magnitudes. Spectral observations are required. Editor: Unfortunately the quoted weblink to discovery images did not work at the time of this circular. If an image is secured please e-mail it to the editor. Guy M Hurst ---------------------------------------------------------------------------- ------------------ Guy M Hurst 16 Westminster Close, Basingstoke, Hampshire, RG22 4PP, England Tel/FAX (01256) 471074 Internet: guy@tahq.demon.co.uk Mobile: (07905) 332226 Personal WWW: http://www.guyhurst.co.uk Editor of The Astronomer                       http://www.theastronomer.org ---------------------------------------------------------------------------- ------------------