Electronic Telegram No. 976 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 POSSIBLE NEW SUPERNOVA IN NGC 3340 T.-H. Liou, T.-W. Chen, Y. Urata, Y.-T. Chen, and C.-Y. Shih report the discovery of an apparent supernova (mag about 16.3) on unfiltered CCD images taken in the course of the Taiwan Supernova Survey on Feb. 26.786 UT with the 1-m Lulin Observatory telescope. The new object is located at R.A. = 10h42m18s.21, Decl. = -0o22'38".4 (equinox 2000.0), which is 3".6 east and 1".6 south of the center of NGC 3340. Nothing was visible at this location on 2005 Mar. 6.693 (limiting magnitude about 20.5). A confirming image taken on May 9.662 showed the new object at mag approximately 17.0. T.-W. Chen reports that this new object is located 1".8 east and 3".0 south of the position of SN 2005O (cf. IAUC 8471). NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2007 CBAT 2007 June 1 (CBET 976) Daniel W. E. Green