Possible Supernova PSN J13085839-1531041 in NGC 4984 Narrowfield L - Dec 10

Possible Supernova PSN J13085839-1531041 in NGC 4984 Narrowfield L - Dec 10, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
Technical information:
Total exposure 15 min (3 x 5 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2011.12.10.541
Astrometry: RA 13 08 58.47 Dec -15 31 04.6
Photometry: 12.5 +/- 0.2 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.