SIMBAD references

A. J. Drake, S. G. Djorgovski, M. J. Graham, A. Mahabal, and R. Williams, California Institute of Technology; J. L. Prieto, Princeton University; 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 2012 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2012bx Apr. 11.24 11 44 29.41 + 7 03 46.3 17.1 16".5 W, 8".8 N ---------------------------------------------------------------------------—

The variable was designated PSN J11442941+0703463 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bx based on the spectroscopic confirmation reported below. Further CCD magnitudes for 2012bx (unfiltered unless noted otherwise): Mar. 17.31 UT, [21.5 (CSS); Apr. 14.040, 17.2 (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 29s.42, 46".4; image posted at URL http://www.flickr.com/photos/43846774@N02/6936349786/); 15.838, 16.8 (Nick James, Chelmsford, Essex, England; Celestron 11 telescope + ST9XE camera; position end figures 29s.39, 46".5); 16.343, 17.2 (Brimacombe; position end figures 29s.41, 46".1); 18.26, 17.3 (CSS); 21.023, 17.6 (F. Luppi and Luca Buzzi, Varese, Italy; 0.38-m f/6.8 reflector; position end figures 29s.42, 46".7; reference stars from CMC-14 catalogue; image posted at URL http://www.astrogeo.va.it/pub/TOCP/PSN_J11442941+0703463.jpg). Brimacombe's Apr. 16 image is posted at the following website URL: http://www.flickr.com/photos/43846774@N02/7085286249/.