Electronic Telegram No. 2409 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Room 209; Dept. of Earth and Planetary Sciences; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbat@iau.org; cbatiau@eps.harvard.edu URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2010gm IN MCG +07-36-25 J. Fynbo and J. Sollerman, Dark Cosmology Center, Niels Bohr Institute, Copenhagen University, on behalf of N. B. Andreasen, S. J. Jakobsen, and C. Heje Groenbech, DARS Summer School, report on optical spectroscopy of 2010gm (cf. CBET 2383) obtained with the Nordic Optical Telescope (+ ALFOSC; range 350-900 nm, resolution 0.8 nm) on Aug. 11.9 UT. The fully reduced spectrum shows 2010gm to be a normal type-Ia supernova slightly more than a month past maximum light. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 August 12 (CBET 2409) Daniel W. E. Green