Comet C/2012 S1 (ISON) Widefield L Nov 15, 2013

Comet C/2012 S1 (ISON) Widefield L Nov 15, 2013, a photo by Joseph Brimacombe on Flickr.

Via Flickr:
Taken from New Mexico Skies at 11h 47m UT using an FSQ 106 ED telescope and STL11K camera on a PME II mount. 3 x 10 min exposure. Luminance filter. Scale: 3.5 asec/px