Electronic Telegram No. 2640 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 2011M IN UGC 3218 = PSN J05004155+6214386 Further to CBET 2634, L. Jewett, S. B. Cenko, W. Li, and A. V. Filippenko report the LOSS discovery of an apparent supernova on unfiltered KAIT images: SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011M Jan. 19.33 5 00 41.55 +62 14 38.6 18.2 14".6 W, 0".6 S Additional KAIT magnitudes for 2011M: Jan. 14.30 UT, [19.5; 20.30, 18.0. This object was listed on the Central Bureau's TOCP webpage with the provisional designation PSN J05004155+6214386. R. A. Koff (Bennett, CO, U.S.A., 25-cm reflector) reports that twenty co-added CCD images taken on Jan. 22.073 yield mag 17.1 and position end figures 41s.27, 38".3. The type-Ia supernova 2006le also appeared in UGC 3218 (cf. IAUC 8770). J. Parrent, D. A. Howell, R. Ellis, A. Gal-Yam, and P. E. Nugent, on behalf of the "Palomar Transient Factory" group (http://www.astro.caltech.edu/ptf/), report that a CCD spectrum (range 350-800 nm) was taken on the Gemini North telescope on Jan. 22 UT, revealing that SN 2011M = PSN J05004155+6214386 is a type-Ia supernova. Comparisons to other spectra using "Superfit" (Howell et al. 2005, Ap.J. 634, 1190) indicate a close match to that of SN 1989B, at five days before maximum light. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2011 CBAT 2011 January 25 (CBET 2640) Daniel W. E. Green