Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J15381795+2544173

PSN J15381795+2544173   2012 06 20.7993*  15 38 17.95 +25 44 17.3  18.6 U                       9 1

2012 06 20.7993

Discovered by V. Shumkov on the images obtained by MASTER-Kislovodsk robotic telescope (0.40-m f/2.5 reflector + CCD). Object is present on three 180-sec unfiltered exposures taken on 2012-06-20 at 18:41:04, 19:11:01 and 19:33:43 UT. Discovery and reference images: http://master.sai.msu.ru/static/OT/153817.95254417.3_1.png

2012 06 21.813

D. Denisenko and V. Lipunov (SAI MSU) report on behalf of the MASTER collaboration: object was confirmed on the night following the discovery with the same MASTER-Kislovodsk robotic telescope. Unfiltered magnitude 18.6+/-0.2 on 2012 June 21.813 UT. Confirmation image posted at http://master.sai.msu.ru/static/OT/PSNJ15381795+2544173-MASTER-20120621.jpg

2012 06 23.427

This possible supernova was seen with 8 x 15 min images Astrometry: RA 15 38 17.92 Dec 25 44 17.1 Photometry: 19.0 +/- 0.3 IR > 700 nm (R as ref) These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information http://www.flickr.com/photos/43846774@N02/7429301428/