SIMBAD references

T. Puckett and J. Newton report the discovery of an apparent supernova (mag 17.9) on an unfiltered CCD image (limiting mag 19.2) taken with a 0.40-m reflector at Portal, AZ, U.S.A., on Mar. 27.455 UT in the course of the Puckett Observatory Supernova Search. The new object is located at R.A. = 15:41:13.44, Decl. = +15:34:22.2 (equinox 2000.0), which is 19".2 east and 1".0 south of the center of IC 1133 (= UGC 9973). The discoverers posted an image at website URL http://www.possdata.com/PSNJ15411344+1534222.jpg. The variable was designated PSN 15411344+1534222 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012bn based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2012bn (unfiltered unless noted otherwise): Feb. 23, [18.9 (Puckett); Mar. 28.315, 17.5 (Puckett); 28.423, 17.3 (R. A. Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + Apogee AP-47p camera; limiting magnitude 19.5; position end figures 13s.25, 21".6; UCAC3 reference stars); 28.46, 18.5 (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 13s.41, 21".9; image posted at website URL http://www.flickr.com/photos/43846774@N02/6879057750/); 29.028, 17.3 (Massimiliano Martignoni, Magnago, Italy; 25-cm f/10 Schmidt-Cassegrain reflector + KAF0261E CCD chip; V magnitude noted; position end figures 13s.20, 21".0).