Possible Supernova CSS120612:115257+214248 in an Anonymous Galaxy Narrowfield L - June 14

Possible Supernova CSS120612:115257+214248 in an Anonymous Galaxy Narrowfield L - June 14, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
SUMMARY
SN seen at Mag 17.9 L. Measurements include light from faint anonymous host seen on DSS2 image
DISCOVERY
Catalina Real-Time Transient Survey: 2012.6.12.223; Mag 18.2
TECHNICAL INFORMATION
Total exposure 50 min (5 x 10 min, luminance filter; binned 2x2, scale 0.91 asec/px)
Time: 2012.6.14.273
Astrometry: RA 11 52 57.39 Dec 21 42 48.4 (SN+Host)
Photometry: 17.9 +/- 0.1 L (SN+Host)
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.