Electronic Telegram No. 2772

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 2011ef IN UGC 12640

Further to CBET 2753, P. Blanchard, 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
 2011ef   July 18.46   23 30 57.02  +15 29 24.3   17.7    2".7 E, 1".3 S

Additional magnitudes for 2011ef:  July 16.44 UT,
[18.7 (KAIT); 19.44, 16.2 (KAIT); 20.435, 15.6 (Joseph Brimacombe, Cairns,
Australia; five 600-s images with red filter; position end figures 56s.99,
23".7; image posted at http://www.flickr.com/photos/43846774@N02/5959056859/).

Host galaxy info: vel= 4009 km/s ; 1.12' x 0.13'; 15.68mag; Sdm

SN type info: IIb

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