Electronic Telegram No. 1728 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 2009ay IN NGC 6479 T. Puckett, Ellijay, GA, U.S.A.; and M. Peoples, Blakeslee, PA, U.S.A., report the discovery of an apparent supernova (mag 16.4) on unfiltered CCD images (limiting mag 18.8) taken with a 0.35-m reflector at Ellijay on Mar. 20.41 UT in the course of the Puckett Observatory Supernova Search. The new object, which was confirmed at mag 16.4 on images (limiting mag 19.2) taken by T Orff on Mar. 21.42 with a 0.60-m reflector at Ellijay, is located at R.A. = 17h48m22s.97, Decl. = +54o08m54s.7 (equinox 2000.0), which is 12".1 east and 0".4 north of the center of NGC 6479. Nothing is visible at this position on images taken by Puckett on Feb. 17 (limiting mag 18.9). The type-Ic supernova 2007cl (cf. CBETs 972, 974) also appeared in NGC 6479. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2009 CBAT 2009 March 22 (CBET 1728) Daniel W. E. Green