Tonight's Comet Lemmon as it passed by Alpha Crucis (21st-22nd January 2013) over 2 hours. Canon EOS 600D, 200mm f/3.5, ISO3200, 290x20sec exposures. 100% crops stacked using Registax.
Also a single shot full frame with Crux just squeezing in.
Video here:
http://youtu.be/0XvFwgM50G0
I've also processed the image using levels and there seems to be a tail in there.
Thanks for looking
Tom