Electronic Telegram No. 2762 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 2011ea A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology; J. L. Prieto, Carnegie Observatories; M. Catelan, Pontificia Universidad Catolica de Chile; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the discovery of an apparent supernova in unfiltered Catalina Sky Survey (CSS) images: SN 2011 UT R.A. (2000.0) Decl. Mag. Offset 2011ea July 1.18 12 27 36.38 + 4 09 49.5 19.2 - Nothing was visible at this position on a CSS image from June 8.22 UT (limiting mag 20.3). J. L. Prieto, Carnegie Observatories, reports that a spectrogram (range 380-920 nm; resolution 0.7 nm) of 2011ea was obtained on July 3 UT with WFCCD mounted on the du Pont 2.5-m telescope at Las Campanas Observatory. The SNID cross-correlation software (Blondin and Tonry 2007, Ap.J. 666, 1024) was used to aid identification and age/redshift estimation. SN 2011ea has the spectrum of a normal type-Ia event at maximum light. The redshift estimated, from the supernova's features, is 0.106 +/- 0.003. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2011 CBAT 2011 July 8 (CBET 2762) Daniel W. E. Green