SIMBAD references

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 2012 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2012D Jan. 13.47 12 58 37.11 +27 10 25.2 18.0 2".3 W, 10".6 S ---------------------------------------------------------------------------—

The variable was designated PSN J12583711+2710252 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012D based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012D (unfiltered unless noted otherwise): 2011 June 12.26 UT, [19.5 (CSS); 2012 Jan. 14.464, 18.4 (Joseph Brimacombe, Cairns, Australia; remotely using a 51-cm RCOS telescope + STL11K camera + luminance filter at New Mexico Skies Observatory near Mayhill, NM, U.S.A.; position end figures 37s.13, 25".1; image posted at URL http://www.flickr.com/photos/43846774@N02/6696484729/); 14.331, 17.6 (L. Elenin, Lyubertsy, Russia; three stacked 300-s images taken remotely at the ISON-NM Observatory near Mayhill with a 0.45-m f/2.8 telescope + KAF09000 CCD; position end figures 37s.20, 25".9, uncertainty stated as ± 0".1; UCAC3 reference stars; limiting mag about 19.9); 16.150, 18.9 (Federica Luppi and Luca Buzzi, Varese, Italy; 0.38-m f/6.8 reflector; position end figures 37s.16, 25".8; reference stars from CMC-14 catalogue; image posted at URL http://www.astrogeo.va.it/pub/TOCP/PSN_P44486.jpg).