2011CBET.2939....1C

L. Cox, J. Newton, and T. Puckett report the discovery of an apparent supernova (mag 17.2) on an unfiltered CCD image (limiting mag 19.5) taken with a 0.40-m reflector at Portal, AZ, U.S.A., on Nov. 25.166 UT in the course of the Puckett Observatory Supernova Search. The new object is located at R.A. = 23:51:02.28, Decl. = +46:43:21.7 (equinox 2000.0), which is 9".4 west and 4".1 south of the center of UGC 12809; an image is posted by the discoverers at website URL http://www.possdata.com/PSNJ23510228+4643217.jpg. The variable was designated PSN J23510228+4643217 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2011iu based on the spectroscopic confirmation reported below. Additional CCD magnitudes for 2011iu (unfiltered unless noted otherwise): Oct. 25, [19.4 (Puckett); Nov. 28.168, 17.2 (Puckett; 40-cm reflector at Portal); 29.049, 17.1 (R. A. Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + Apogee AP-47p camera; limiting magnitude 19.0; position end figures 02s.27, 21".3; UCAC3 reference stars); 29.083, 17.1 (J. 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 02s.37, 21".8; image posted at URL http://www.flickr.com/photos/43846774@N02/6428776279/).