Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J09443380+5545444

PSN J09443380+5545444   2013 02 22.60  *  09 44 33.80 +55 45 44.4  18.6 U   18W   2S  U05201    9 9

2013 02 22.60

We discovered this object on Feb.22.60 2013 UT in the Tsinghua University-NAOC Transient Survey (TNTS),and the magnitude of the object on unfiltered CCD was about 18.6 mag.

2013 02 23.4099

L. Elenin (Lyubertsy, Russia) and I. Molotov (Moscow, Russia) confirm an apparent supernova PSN J09443380+5545444 in UGC 5201. 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 Feb. 23.4099 2013. Object located at 09h 44m 33s.98 +/- 0".06, +55d 45' 43".8 +/- 0".1 (UCAC-4) with magnitude 18.4U (mag. limit ~19.6m). Nothing is visible at this position on the POSS and POSSII images. Image of PSN J09443380+5545444 available at http://spaceobs.org/images/TOCP/PSNJ09443380+5545444-20130223.png

2013 02 24.338

This possible supernova in UGC 5201 was detected with 7 x 15 min images using a red filter Astrometry: RA 09 44 33.89 Dec +55 45 44.7 Photometry: 17.55 +/- 0.11 R (R for ref) These data were collected remotely by Joseph Brimacombe, Cairns, Australia. Link to image and further information http://www.flickr.com/photos/43846774@N02/8505918523/