Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J10411534+3733218

PSN J10411534+3733218   2012 11 20.774 *  10 41 15.34 +37 33 21.8  16.7 U   18W  25N  P2103473  9 0

2012 11 20.774

V. Lipunov, Sternberg Astronomical Institute, reports the discovery by P. Balanutsa of a possible supernova (mag 16.7) on two unfiltered images (limiting mag 18.3) taken on Nov. 20.742 and 20.774 UT with the MASTER-Amur robotic telescope (0.40-m f/2.5 reflector + 4kx4k CCD). The new object is located at R.A. = 10h41m15s.34, Decl. = +37d33'21".8 (equinox 2000.0), which is 17".7 west and 25".2 north of a nearby galaxy PGC 2103473. D. Denisenko and E. Gorbovskoy (SAI MSU) report that nothing is visible at this position on MASTER-Amur survey image of 2012 Oct. 28.879 UT (limiting mag 18.4), as well as on 15 digitized Palomar Observatory Sky Survey plates (m_lim~21) and SDSS color image (m_lim~23). The discovery and reference images are posted at the following website URL: http://master.sai.msu.ru/static/OT/104115.34373321.8.png (see also ATel #4598).

2012 11 27.3963

L. Elenin (Lyubertsy, Russia) and I. Molotov (Moscow, Russia) confirm an apparent supernova PSN J10411534+3733218. Object visible on 3x300sec images remotely taken at ISON-NM Observatory (Mayhill, NM, USA) with 0.45-m f/2.8 telescope + CCD (KAF09000) on Nov. 27.3963. Object located at 10h 41m 15s.45 +/- 0".13, +37d 33' 23".3 +/- 0".11 (UCAC-4) with magnitude 17.8U (mag. limit ~19.3m). Nothing is visible at this position on the POSS and POSSII images. Image of PSN J10411534+3733218 available at http://spaceobs.org/images/TOCP/PSNJ10411534+3733218-20121127.png