2012CBET.3180....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, 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 2012 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2012dp June 16.32 16 00 35.09 +15 41 04.3 19.5 9".7 W, 3".9 S ---------------------------------------------------------------------------—

The variable was designated PSN J16003509+1541043 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012dp based on the spectroscopic confirmation reported below. Additional magnitudes for 2012dp: May 25.28 UT, [20.5 (CSS); June 10.29, 20.1 (CSS); 18.323, 17.8 (Joseph Brimacombe, Cairns, Australia, remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at the New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 35s.17, 03".5; image posted at website URL http://www.flickr.com/photos/43846774@N02/7398233902/); 22.008, 18.2 (Xavier Bros, Anysllum Observatory, Ager, Spain; position end figures 35s.25, 04".7; image posted at website URL http://tinyurl.com/89np2m8).