SIMBAD references

Paolo Fagotti, Bastia Umbra, Italy, reports his discovery of a possible supernova (magnitude R = 15) near M95 = NGC 3351 on CCD images taken on Mar. 16.86 UT with a 0.5-m reflector (+ MX916 camera) at Porziano d'Assisi, Italy, the object measured to be located at R.A. = 10:43:53.76, Decl. = +11:40:17.9 (equinox 2000.0 presumed). Additional CCD magnitudes for the variable as reported to the Central Bureau: Mar. 13.96, [19.5 (Alessandro Dimai, Cortina d'Ampezzo, Italy; 51-cm Ullrich telescope); 14.89, [17.3 (U. Quadri, L. Strabla, R. Girelli, and A. Quadri, 25-cm f/5 robotic telescope, Bassano Bresciano, Italy; V band noted); 16.849, 15.4 (Dimai; 28-cm telescope; limiting mag 17.0; position end figures 53s.78, 17".0; independent discovery in the course of the Italian Supernovae Search Project; image posted at URL http://www.cortinastelle.it/M95_20120316_202322_20_Luminance_2_Maioni.jpg); 17.04, 13-14 (Luigi Fiorentino, Bari, Italy, 8-cm refractor + DSLR camera; no position given, possible independent detection); 17.90, R = 13 (Jure Skvarc, Crni Vrh Observatory, Slovenia, 0.60-m f/3.3 Cichocki telescope; independent discovery on four 60-s images; position end figures 53s.72, 17".7; offset 60" west, 115" south of the center of M95; image posted at URL http://www.observatorij.org/vstars/PSN20120317/PSNJ10435372+1140177.jpg; note that Mars' presence only about a half degree from the variable caused the four diffraction spikes on the composite image); 19.985, 13.3 (Gianluca Masi, 43-cm f/6.8 robotic telescope, Ceccano, Italy; position end figures 53s.73, 17".8; 24 reference stars from NOMAD catalogue). Skvarc notes that nothing is visible at the position of the variable in seven archive images taken during 2005 Apr. 25-2012 Feb. 15; he adds that the variable is only 3".3 from an x-ray source noted by Swartz et al. (2006, Ap.J. 647, 1030; object s8). The designation PSN J10435372+1140177 was assigned when Skvarc posted his discovery at the Central Bureau's TOCP webpage, and the designation SN 2012aw is assigned here based on the spectroscopic reports below.