I've got two versions of the revised movie posted at our club's website.
  The small version, 10 frames over 30 minutes, is at:


The large version, 28 frames over 30 minutes is at:


These show the flow of the gasses in the tail far better than the first
version I posted here.  I was very surprised at the large motion in the
tail over such a short time.  I'd have liked to have gone longer but the
comet ran into my chimney ending the movie.  Ok it missed the chimney by
about 100 million miles fortunately but you know what I mean.  With snow
forecast for the next few days I doubt I'll get to try for a longer
version.

Each frame is a one minute exposure, allow a few seconds for download
and 28 frames covers 30 minutes real time.  The small file is a 1.5
megabyte download from the website (nearly 2 by usenet) while the large
file using every frame is 4.4 megabytes long.

I find this movie the most fascinating "picture" I've taken so far.
Virtually every part of the tail changes over the 30 minutes time of the
movie.  If you want to capture the detail in a comet tail keep your
exposures very short seems to be the lesson here.  It's like trying to
photograph the Northern or Southern Lights.  I hope you find it as
fascinating as I do.

14" LX200R@f/10, 1 minute frames over 30 minutes binned 3x3,
STL-11000M, Paramount ME.

Rick