Comet Lovejoy (C/2013 R1). I had to work hard to capture this one. It was up before dawn but the time window was limited. I took severa frames but this is a single one and is not bad for noise and has sharp stars.
2013-12-07 at the Alberta All Star Party.
Canon modified 6D with 300mm lens.
Exposure - 1 frames at 120s, f/4 and ISO 2500.
Processing in Photoshop.