SIMBAD references

Simone Leonini, Siena, Italy, reports the discovery by S. Leonini and G. Guerrini of an apparent supernova (mag about 16.8) on an unfiltered CCD image (limiting mag about 18.9) taken on Aug. 22.969 UT at the Montarrenti Observatory in the course of the Italian Supernovae Search Project using a 0.53=m f/8.7 Ritchey-Chretien telescope (+ Apogee Alta U47 CCD camera). The new object is located at R.A. = 22:45:02.28, Decl. = +34:00:15.0 (equinox 2000.0), which is 18" west and 30" north of the nucleus of the galaxy UGC 12179. No stellar source is visible at this position on Palomar Sky Survey plates from 1953 Oct. 2 (J) and 1994 Aug. 29 (F), though no limiting magnitudes were provided by Leonini. The discovery image is posted at URL http://tinyurl.com/3u74vg8. The variable was designated PSN J22450228+3400150 when it was posted at the Central Bureau's TOCP webpage and is here designated SN 2011ff based on the spectroscopic report below. Additional CCD magnitudes for 2011ff (unfiltered unless noted otherwise): 1989 Sept. 8, [19.5 (Palomar Sky Survey N plate; via Leonini); 2009 Sept. 17, [19.2 (Leonini); 2011 July 30, [19.2 (Leonini); Aug. 23.934, 16.5 (A. Dimai, Col Drusci, Italy); Aug. 23.95, 16.7 (Leonini; limiting mag about 18.5); Aug. 24.276, 16.8 (Joseph Brimacombe, Cairns, Australia; position end figures 02s.90, 15".9; image posted at website URL http://www.flickr.com/photos/43846774@N02/6077986697/); 24.28, 17.4 (R. A. Koff, Bennett, CO, U.S.A.; Meade 0.25-m f/10 reflector + Apogee AP-47p CCD camera; limiting mag 19.5; position end figures 02s.82, 15".4); 24.577, 17.2 (Brimacombe; infrared filter; position end figures 02s.93, 15".9). Koff adds that nothing is visible at the position of 2011ff on the Digitized Sky Survey, providing the limiting mag as 19.5 but providing no bandpass or date for the plate.