Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J08583607+5419257

PSN J08583607+5419257   2013 03 28.50  *  08 58 36.07 +54 19 25.7  18.8 U    3W   3N            9 9 

2013 03 28.50

We discovered this object on Mar.28.50 2013 UT in the Tsinghua University-NAOC Transient Survey (TNTS),and the magnitude of the object on unfiltered CCD was about 18.8 mag.

2013 03 30.2026

PSN detected at coordinates 08 58 36.08 +54 19 25.7 (UCAC3). Object seen as elongation to north and west of galaxy center. Not clearly defined. Magnitude 18.2 +/- 0.2 . Limiting magnitude 20.2 . Sum of 7 x 240-sec images. Observer: R. A. Koff, Antelope Hills Observatory, Bennett, Colorado USA (H09). Image posted at: http://antelopehillsobservatory.org/SNpictures/PSNJ08583607+5419257final.jpg

2013 03 31.225

This possible supernova in USNOA2 1425-07252807 with 5 x 15 min images using a luminance filter Astrometry: RA 08 58 36.13 Dec +54 19 25.9 Photometry: 18.70 +/- 0.26 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@N02/8609045156/