2011CBET.2777....1M

Peter Marples, Loganholme Observatory, Queensland, Australia, reports the discovery by Stuart Parker (Oxford, Canterbury, New Zealand) of an apparent supernova (red mag 18.0) on a 30-s unfiltered CCD image taken on July 25.434 UT with a Celestron C14 35-cm f/6.3 Schmidt-Cassegrain reflector (+ ST10 CCD camera). Colin Drescher (Calamvale, Queensland, Australia) measured the magnitude and the position of the new object to be R.A. = 20:34:22.62, Decl. = -31:58:23.6 (equinox 2000.0), which is 26" east and 28" north of the nucleus of the galaxy NGC 6925. Nothing is visible at this position on a red Digitized Sky Survey image from 1990 Sept. 24 (no limiting magnitude provided). The variable was designated as PSN J20342262-3158236 when posted at the Central Bureau's TOCP webpage and is here designated SN 2011ei based on the spectroscopic reports below. Additional magnitudes for 2011ei: 2011 June 23.58, [19.1 (Parker; red magnitude); July 26.43, 18.3 (Greg Bock, Leyburn, Queensland, Australia; Meade 35-cm LX200 ACF Schmidt-Cassegrain telescope + ST10 CCD camera; unfiltered red mag measured by Marples; limiting red mag 18.6); 27.322, 18.7 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + unfiltered STL11K camera at the New Mexico Skies observatory near Mayhill, NM, U.S.A.; position end figures 22s.63, 22".9 image posted at URL http://www.flickr.com/photos/43846774@N02/5982678302/); 27.508, 17.8 (Brimacombe, Coral Towers Observatory, Cairns; 30-cm telescope + red filter; position end figures 22s.52, 24".1; 27.515, 17.7 (Brimacombe; 40-cm RCOS telescope + STL6K camera + infrared filter; position end figures 22s.60, 22".4; http://www.flickr.com/photos/43846774@N02/5983785346/); Aug. 2.330, 16.9 (Brimacombe; red filter; image posted at website URL http://www.flickr.com/photos/43846774@N02/6002976621/).