Electronic Telegram No. 615 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://cfa-www.harvard.edu/iau/cbat.html NOVA IN M31 S. Nakano, Sumoto, Japan, reports the discovery of a rapidly brightening apparent nova in M31, found by K. Itagaki (Teppo-cho, Yamagata, Japan, 0.60-m f/5.7 reflector) on unfiltered CCD images. The new object is located at R.A. = 0h42m33s.16 +/- 0s.02, Decl. = +41o10'06".8 +/- 0".1 (equinox 2000.0). Itagaki provides the following unfiltered magnitudes for the apparent nova: Sept. 1.588 UT, [20.0; 3.5161, 16.5; 3.5202, 16.4; 3.5384, 16.3; 3.5505, 16.2; 3.5631, 16.1; 3.5768, 16.0. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2006 CBAT 2006 September 3 (CBET 615) Daniel W. E. Green