SIMBAD references

Vladimir Lipunov reports the discovery of a possible supernova (mag 18.1) on five unfiltered CCD images (limiting mag 19.8) taken with the MASTER II dual 40-cm telescope (+ Apogee CCD Alta U16m camera; field-of-view 2 deg x 4 deg) at the Tunka observatory as part of the MASTER auto-detection system on Mar. 14.839 UT. The new object (designated SN 2012bd based on the spectroscopic confirmation reported below) is located at R.A. = 16:31:05.47, Decl. = +61:55:48.4 (equinox 2000.0 presumed). Nothing is visible at this position on images obtained on 2011 May 1.73 (limiting mag 20.1); their images are posted at URL http://master.sai.msu.ru/static/OT/163105.47615548.4.png.