2009CBET.1842....1M

Peter Marples, Loganholme, Queensland, Australia, reports the discovery by Colin Drescher, Greg Bock, Matt Brown, Jeremy Moser, and himself of an apparent supernova (red mag 16.4) on 25-s unfiltered CCD images taken on June 9.42 with a 30-cm f/7 reflector. The new object, which was confirmed at red mag 16.3 on images taken by Marples at Loganholme on June 10.38, was measured by Drescher (using Astrometrica with the USNO-B1.0 catalogue) to be located at R.A. = 15:48:22.79, Decl. = -75:40:47.8 (equinox 2000.0), which is 25" east and 25" south of the center of the galaxy NGC 5967. Nothing appears at this position on a reference image taken by Marples on 2009 Apr. 28.52 (limiting red mag 17.3) or on Palomar Sky Survey photographs (limiting red mag 18.9 and limiting infrared mag 19.7). Following posting on the Central Bureau's unconfirmed-objects webpage, C. Jacques and E. Pimentel, Belo Horizonte, Brazil, report that their 90-s unfiltered CCD image taken on June 11.08 with a 30-cm f/3 Schmidt-Cassegrain reflector yields position end figures 22s.87, 47".9 and mag 16.3 for 2009gd, adding that nothing is visible at this position on a Digitized Sky Survey image from 1994 Mar. 23 (limiting red magnitude 19.0).