2012CBET.3106....1L

Vladimir Lipunov reports the discovery of a possible supernova (mag 15.1) on two unfiltered CCD images (limiting mag 18.7) obtained with the auto- detection system of the MASTER II 40-cm telescope (+ Apogee Alta U16m camera; field-of-view 2x4 square degrees) at the Kislovodsk observatory (see website URL http://observ.pereplet.ru) on May 6. The new object is located at R.A. = 13:22:35.25, Decl. = +54:48:47.7 (equinox 2000.0), which is 24" east and 18" south of the center of PGC 46714. Nothing is visible at this position on a MASTER reference image from 2010 Apr. 28 (limiting mag 19.1). The discovery and reference images are posted at the following website URL: http://observ.pereplet.ru/images/132235.25+544847.7.png.