2012CBET.3228....1Y

Hitoshi Yamaoka, Kyushu University, reports the discovery by K. Itagaki, Yamagata, Japan, of a possible nova (mag 13.9) on unfiltered supernova-search CCD images taken on Sept. 13.568 UT with a 0.50-m f/6 reflector. The new object is located at R.A. = 23:27:27.15, Decl. = +8:55:39.1 (equinox 2000.0). The discovery image has been posted at the following website URL: http://www.k-itagaki.jp/images/pnv-psc.jpg. A possible quiescent counterpart of red magnitude 22.0 is present in the Sloan Digital Sky Survey (DR8), suggesting a rather large amplitude for a dwarf nova. The variable was designated PNV J23272715+0855391 when it was posted at the Central Bureau's TOCP webpage. Additional CCD magnitudes for PNV J23272715+0855391: 2011 Oct. 19.559, [19.0 (Itagaki); 2012 Sept. 13.951, V = 13.9 (Massimiliano Martignoni, Magnago, Italy; 25-cm f/10 Schmidt-Cassegrain reflector; position end figures 27s.13, 38".8); 14.163, 13.7 (R. A. Koff, Bennett, CO, USA; Meade 0.25-m f/10 reflector + Apogee U-47 camera; limiting magnitude 18.4; position end figures 27s.14, 38".8; UCAC3 reference stars; image posted at website URL http://antelopehillsobservatory.org/SNpictures/PNVJ23272715+0855391final.jpg).