Electronic Telegram No. 395 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 SUPERNOVA 2006aa IN NGC 3947 Further to IAUC 8667, E. Lee and W. Li report the LOSS discovery of an apparent supernova on unfiltered KAIT images taken on Feb. 8.48 (at mag 18.1) and 9.50 UT (mag 18.0). SN 2006aa is located at R.A. = 11h53m19s.89, Decl. = +20o45'18".2 (equinox 2000.0), which is 6".5 west and 12".2 north of the nucleus of NGC 3947. A KAIT image taken on Jan. 23.49 showed nothing at this position (limiting mag 19.0). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2006 CBAT 2006 February 9 (CBET 395) Daniel W. E. Green