SIMBAD references

A. Dimai, Cortina d'Ampezzo, Italy, reports the discovery in the course of the Italian Supernovae Search Project of an apparent supernova (mag about 17.0) on unfiltered CCD images (limiting mag about 18.0) taken with the "Ullrich" 0.52-m telescope of the Col Drusci Observatory at Cortina d'Ampezzo, Italy, on Jan. 20.139 UT. The new object is located at R.A. = 14:56:59.85, Decl. +24:35:59.5 (equinox 2000.0), which is 8" west and 25" south of the nucleus of PGC 53433 (= Arp 302). Nothing is visible at this position on Palomar Sky Survey infrared, red, and blue plates. The discovery image is posted at website URL http://tinyurl.com/74okrao. The variable was designated PSN J14565985+2435595 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2012M based on the spectroscopic confirmation reported below. Additional approximate unfiltered CCD magnitudes for 2012M: Jan. 21.505, 17.9 (L. Elenin, Lyubertsy, Russia; remotely taken at the ISON-NM Observatory near Mayhill, NM, USA, with a 0.45-m f/2.8 telescope; limiting mag about 20.8; position end figures 59s.85, 59".8; estimated uncertainty in each coordinate ± 0".1; UCAC3 reference stars; image posted at website URL http://tinyurl.com/6nhf599); 22.225, 16.9 (Dimai).