Possible Supernova MLS120519:152240-020139 Narrowfield L - May 21

Possible Supernova MLS120519:152240-020139 Narrowfield L - May 21, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen at Mag 21.2 L. Measurements include light from assumed host not seen on DSS2 image
TECHNICAL INFORMATION
Total exposure 75 min (5 x 15 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2012.5.21.383
Astrometry: RA 15 22 40.27 Dec -02 01 39.8
Photometry: 21.2 +/- 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.