C/2007 N3 (Lulin)
Imaged at 5:00 local time, February 6th 2009, Perth Western Australia.
(click on image for larger version)
The image of Comet Lulin was captured using LRGB filters. 10 minutes each of RGB, combined with 6 minutes of Luminance, all 120s sub exposures (unguided). Tracking on the comet itself produces the star trails.