The Asteroid that Became a Comet: P/2012 NJ with Tail - July 23

The Asteroid that Became a Comet: P/2012 NJ with Tail - July 23, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
Taken remotely from New Mexico Skies using a 51-cm RCOS and STL11K camera.
62 x 0.5 min exposures between 7h 27m and 8h 15m UT; midpoint 2012.7.23.327
The tail is approximately 30 sec in length