SIMBAD references

T. Boles, Coddenham, England, reports the discovery of an apparent supernova on unfiltered CCD images taken on Mar. 4.808 (at mag 17.2) and 6.013 UT (mag 17.1) with a 0.35-m reflector. The new object is located at R.A. = 11:39:19.3, Decl. = +89:06:05.7 (equinox 2000.0; average of measurements of images from both night), which is approximately 112" west and 31" north of the center of NGC 3172. Nothing is present at this position on Boles' images from 2009 Jan. 11 and 2007 Mar. 11 (limiting mag 19.5) or on Digitized Sky Survey plates from 1998 Apr. 21 (limiting red mag 20.5) and 1998 Jan. 27 (limiting blue mag 21.0).