SIMBAD references

T. Boles, Coddenham, England, reports the discovery of an apparent supernova (mag 17.6) on unfiltered CCD images taken on Feb. 7.005 and 7.937 UT with a 0.35-m reflector. The new object, designated 2008X, was measured from the first image as being located at R.A. = 12h09m48s.33, Decl. = +58o51'01".6, which is approximately 7".6 east and 4".6 north of the center of NGC 4141 (position end figures from the second image are 48s.31, 01".4). Nothing is visible at this position on Boles' images from 2007 Mar. 11 and May 29 (limiting mag 19.5) or on Digitized Sky Survey images from 1993 May 11 (limiting red mag 20.5) and 1994 Jan. 16 (limiting blue mag 21.0).