Possible Supernova PSN J17100586+4222235 in PGC 59729 Narrowfield Color - June 18

Possible Supernova PSN J17100586+4222235 in PGC 59729 Narrowfield Color - June 18, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen east-north-east of the nucleus at Mag 17.1 L
DISCOVERY
Ella Sanders, R Kot and D Coffin: 2012.6.15.290; Mag 16.0
TECHNICAL INFORMATION
Total exposure 240 min (10 x 15 min, luminance filter; 6 x 5 min RGB each; binned 2x2, scale 0.91 asec/px)
Time: 2012.6.18.319
Astrometry: RA 17 10 05.91 Dec 42 22 23.0
Photometry: 17.1 +/- 0.1 L
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.