Electronic Telegram No. 1943 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 2009ix Further to CBET 1929, J. Rex, 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 2009 UT R.A. (2000.0) Decl. Mag. Offset 2009ix Sept. 8.48 3 17 53.02 +40 57 31.9 18.1 0".5 E, 2".8 N Additional KAIT magnitudes for 2009ix: Aug. 29.52 UT, [19.3; Sept. 16.48, 18.1. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 September 18 (CBET 1943) Daniel W. E. Green