2011CBET.2877....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 ---------------------------------------------------------------------------— 2011hb Oct. 24.24 23 27 55.51 + 8 46 45.7 18.8 6".7 W, 25".2 S ---------------------------------------------------------------------------—

The variable was designated PSN J23275551+0846457 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2011hb based on the spectroscopic confirmation reported below. Additional unfiltered CCD magnitudes for 2011hb: Oct. 6.19 UT, [20.5 (CSS); 16.24, 20.3 (CSS); 26.082, 17.3 (L. Elenin, remotely using a 0.45-m f/2.8 astrograph at the ISON-NM Observatory near Mayhill, NM, USA; limiting mag about 19.7; position end figures 55.s.55, 45".5; NOMAD reference stars; image posted at website URL http://spaceobs.org/images/TOCP/PSNJ23275551+0846457.jpg); 26.142, 17.5 (C. Jacques and E. Pimentel, Belo Horizonte, Brazil; remotely using the GRAS G05 telescope in New Mexico; position end figures 55s.59, 45".2; UCAC2 reference stars; limiting magnitude 19.0; image posted at the following website URL: http://ceamig-rea.net/tocp/ngc7674_tocp.jpg).