Possible Supernova PSN J11584325+1908562 in PGC 37698 Narrowfield L - May 3, 2013

Possible Supernova PSN J11584325+1908562 in PGC 37698 Narrowfield L - May 3, 2013, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen north-north-east of the nucleus at Mag 18.29 L.
DISCOVERY
THU-NAOC Transient Survey (TNTS): 2013.5.1.540; Mag 17.7
TECHNICAL INFORMATION
Total exposure 75 min (5 x 15 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2013.5.3.309
Astrometry: RA 11 58 43.25 Dec +19 08 55.5
Photometry: 18.29 +/- 0.16 L (V for ref)
These data were collected remotely using a 51-cm RCOS and STL11K camera at New Mexico Skies, Mayhill, New Mexico by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia.
FITS file available on request from jbrimaco@bigpond.net.au