Electronic Telegram No. 1998 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 2009ko IN UGC 4175 Further to CBET 1978, J. Kong, 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 2009ko Oct. 28.56 8 01 58.38 +15 03 34.7 16.6 1".2 W, 3".0 N Additional KAIT magnitudes for 2009ko in UGC 4175: Apr. 19.17 UT, [18.6; Oct. 29.54, 16.3. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 October 30 (CBET 1998) Daniel W. E. Green