Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J17045368+0907596

PSN J17045368+0907596   2013 05 04.0762*  17 04 53.68 +09 07 59.6  17.1 U   10N   6E  P1360168  9 0

2013 04 15.022

D. Denisenko, E. Gorbovskoy, V. Lipunov (SAI MSU) report on behalf of the larger MASTER-Net collaboration: PSN J17045368+0907596 was found post factum on the archival survey images obtained by MASTER robotic telescopes (identical 0.40-m f/2.5 reflectors + 4Kx4K CCDs). The following magnitudes (unfiltered with the red zero point) were measured from 60-sec exposures: 2013 Apr. 06.010 UT, <18.7 (latest MASTER-Kislovodsk image before the explosion); Apr. 15.022, 16.1 (limit 19.3); position end figures 53.51s, 59s.3 (first detection by MASTER-Kislovodsk); May 01.707, 16.7 (limit 18.1); position end figures 53.64s, 58s.6 (MASTER-Amur). Prediscovery and reference images are available at http://master.sai.msu.ru/static/OT/PSNJ17045368+0907596-MASTER.jpg

2013 05 05.346

This possible supernova in PGC 1360168 was detected with 4 x 15 min images using a luminance filter Astrometry: RA 17 04 53.58 Dec +09 07 59.9 Photometry: 17.10 +/- 0.08 L (V for ref) These data were collected remotely by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/8713622476/