Electronic Telegram No. 2480 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 2010ih IN NGC 2325 [EDITOR'S NOTE: The text below replaces that on CBET 2475.] N. Morrell, Las Campanas Observatory, Carnegie Supernova Project; and I. Botti and P. Lopez, Universidad de Chile, report that they obtained a spectrogram (range 364-920 nm) of 2010ih (cf. CBET 2471) on Sept. 30.38 UT with the Las Campanas 2.5-m du Pont telescope (+ WFCCD), which shows that 2010ih is a type-Ia supernova several days past maximum brightness. Cross- correlation with a library of supernova spectra using the Supernova Identification tool (SNID; Blondin and Tonry, 2007, Ap.J. 666, 1024) suggests for 2010ih an age of 2-3 weeks after maximum light and a redshift of 0.006, best matched to the spectrum of SN 1990N at 18 days past maximum. Morrell adds that NGC2325 has a redshift of 0.007, so that the probability is high that 2010ih is a part of that galaxy. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 October 6 (CBET 2480) Daniel W. E. Green