2011CBET.2896....1H

S. Howerton, Arkansas City, KS, U.S.A.; A. J. Drake, S. G. Djorgovski, A. Mahabal, M. J. Graham, and R. Williams, California Institute of Technology; J. L. Prieto, Princeton University; M. Catelan, Pontificia Universidad Catolica de Chile; R. H. McNaught and G. Garradd, Australian National University; 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 public images from the Catalina Sky Survey (CSS).

---------------------------------------------------------------------------— SN 2011 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2011hm Oct. 27.35 2 02 13.38 - 6 05 01.6 18.8 3".2 E, 17".5 S ---------------------------------------------------------------------------—

This variable was designated PSN J02021338-0605016 when it was posted on the Central Bureau's TOCP webpage and is here designated SN 2011hm based on the spectroscopic confirmation reported below. Further CCD magnitudes for 2011hm (unfiltered unless noted otherwise): Oct. 17.26 UT, [19.2 (CSS); 30.011, R = 17.2 (Federica Luppi, Varese, Italy; 0.36-m f/7.9 reflector + Bessell R filter; position end figures 13s.50, 00".8; reference stars from CMC-14 catalogue); 30.229, 17.8 (Joseph Brimacombe, Cairns, Australia; position end figures 13s.46, 00".9). Luppi's image is posted at the following website URL: http://www.astrogeo.va.it/pub/TOCP/PSN_G-1-6-31.jpg. Brimacombe's image is posted at URL http://www.flickr.com/photos/43846774@N02/6297260951/.