Electronic Telegram No. 3043 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Hoffman Lab 209; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbatiau@eps.harvard.edu (alternate cbat@iau.org) URL http://www.cbat.eps.harvard.edu/index.html Prepared using the Tamkin Foundation Computer Network SUPERNOVA 2012an IN NGC 6373 = PSN J17241023+5900069 T.-W. Chen, M. Fraser, D. Wright, S. J. Smartt, R. Kotak, Queen's University, Belfast, report that a spectrum (range 530-975 nm; resolution about 1000) was obtained of PSN J17241023+5900069 = SN 2012an (cf. CBET 3035) on Mar. 2.28 UT with the 4.2-m William Herschel Telescope (+ ISIS). The spectrum is quite noisy, but cross-correlation with a library of supernova spectra via the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that 2012an is a type-II supernova, with a best match to the type-IIb supernova 1993J around peak. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2012 CBAT 2012 March 5 (CBET 3043) Daniel W. E. Green