Electronic Telegram No. 1872 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 2009hi IN NGC 7647 S. Nakano, Sumoto, Japan, reports the discovery by K. Itagaki (Teppo-cho, Yamagata, Japan) of an apparent supernova (mag 18.0) on 15-s unfiltered CCD frames (limiting mag 20.0) taken on July 10.722 UT using a 0.60-m f/5.7 reflector; the new object is located at R.A. = 23h23m56s.24 +/- 0s.01, Decl. = +16o46'30".0 +/- 0".4 (equinox 2000.0; average of exposures from two nights), which is 17" west and 8" S of the center of NGC 7647. Further to CBET 1859, W. Li, S. B. Cenko, and A. V. Filippenko report the independent LOSS discovery of 2009hi on unfiltered KAIT images, providing position end figures 56s.26, 29".8. Additional magnitudes for 2009hi: 2006 Aug. 3, [20.0 (Itagaki); 2008 Dec. 1.13, [19.2 (KAIT); 2009 July 5.724, 18.7 (Itagaki; pre-discovery); July 10.49, 17.6 (KAIT); 11.47, 17.7 (KAIT). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 July 12 (CBET 1872) Daniel W. E. Green