SIMBAD references

Grzegorz Duszanowicz, Akersberga, Sweden, reports his discovery of an apparent supernova (mag 16.8) on co-added unfiltered CCD photographs (limiting mag 18.3) taken on Sept. 8.093 UT with a 0.32-m f/3.1 reflector (+ Starlight Xpress MX716 CCD camera). The new object, which was confirmed at mag 16.5 on co-added images taken on Sept. 10.07 and 10.09, is located at R.A. = 6:07:59.00, Decl. = +39:15:54.4 (equinox 2000.0), which is 12".5 east and 5".8 south of the center of the galaxy MCG +07-13-6 (= PGC 18452). Nothing is visible at this position on his co-added images taken on 2008 Oct. 6.96, Nov. 1.97, Dec. 23.79, and 2010 Feb. 7.77 (limiting mag 18.3). An image of 2010hr has been posted by Duszanowicz at the following website URL: http://moonbase.be/html/gallery/sncand/PGC18452-S001-STACK-3.jpg.