Comet C/2012 K5 (LINEAR) at 08:08:00 01/03/2013 UTC

Comet C/2012 K5 (LINEAR) at 08:08:00 01/03/2013 UTC, a photo by pfile on Flickr.

Via Flickr:
21 x 60s
calibrated / initial registration in Pixinsight 1.7
comet registration in DeepSkyStacker 3.3.3 beta 47, exported registered images
comet-registered images stacked in Pixinsight 1.7 (very restrictive pixel rejection)
FFT -> erase diagonal lines -> Inverse FFT (remove remaining star streaks)

star-registered images stacked in Pixinsight 1.7 + DBE

images combined with pixelmath (max(stars,comet)
histogram tweaks, curves