Electronic Telegram No. 2442 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network SUPERNOVA 2010hm IN UGC 12687 Further to CBET 2435, K. Lin, M. Kandrashoff, S. B. Cenko, W. Li, and A. V. Filippenko, University of California, report the LOSS discovery of an apparent supernova on unfiltered KAIT images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010hm Sept. 2.40 23 35 18.58 +12 55 31.9 18.9 14".8 E, 4".5 N Additional KAIT magnitudes for 2010hm in UGC 12687: a co-added image from June 21-July 22, [20.2; Sept. 3.38, 19.0. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 September 4 (CBET 2442) Daniel W. E. Green