Possible Supernova MASTER J215411.92+332449.0 Narrowfield L - Sept 17

Possible Supernova MASTER J215411.92+332449.0 Narrowfield L - Sept 17, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen at Mag 16.8 L. Measurements include light from assumed host not seen on DSS2 image
DISCOVERY
MASTER Robotic Net: 2012.9.15.876; Mag 16.6
TECHNICAL INFORMATION
Total exposure 75 min (5 x 15 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2012.9.17.164
Astrometry: RA 21 54 11.84 Dec 33 24 48.0
Photometry: 16.8 +/- 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.