Electronic Telegram No. 1762 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2009dc IN UGC 10064 T. Puckett, Ellijay, GA, U.S.A.; R. Moore, Warwick, NY, U.S.A.; and J. Newton, Portal, AZ, U.S.A., report the discovery of an apparent supernova (mag 16.5) on unfiltered CCD images (limiting mag 18.4) taken with a 0.40-m reflector at Portal on Apr. 9.31 UT in the course of the Puckett Observatory Supernova Search. The new object was confirmed at mag 16.3 on images (limiting mag 18.5) taken by T. Orff on Apr. 10.42 with a 0.40-m reflector at Portal. SN 2009dc is located at R.A. = 15h51m12s.12, Decl. = +25o42m28s.0 (equinox 2000.0), which is 15".8 west and 20".8 north of the center of UGC 10064. Nothing is visible at this position on images taken by Puckett on Mar. 21 (limiting mag 19.3). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 April 12 (CBET 1762) Daniel W. E. Green