Electronic Telegram No. 2579 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 2010kr IN UGC 5893 Further to CBET 2562, S. B. Cenko, W. Li, and A. V. Filippenko report the LOSS discovery of an apparent supernova on unfiltered KAIT images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010kr Dec. 1.59 10 47 38.17 +38 55 24.9 18.1 2".3 W, 2".4 S Additional magnitudes for 2010kr: a co-added frame from 2010 Apr.-May, [20.5 (KAIT); Dec. 8.16 UT, 18.2 (J. Brimacombe, Cairns, Australia; co-added image from ten 600-s unfiltered images taken remotely with a 0.5-m telescope located near Mayhill, NM, U.S.A.). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 December 10 (CBET 2579) Daniel W. E. Green