About a month ago, I spotted this little beauty and thought I would have a crack at it. I got 34 minutes at ISO 1600 and was faily impressed.
Last night the mercury plummeted to minus 2 degrees celcius so I donned the extra four layers of clobber and headed back out into the dome.
I had left the camera on the scope in the same orientation as a month ago so it would all stack neatly and proceeded to capture another hour of exposure at ISO 800.
Using Deep Sky Stacker, I stacked both sessions together for a total of 1hour 34 minutes. Here is the comparitive result.
All images taken with an unmodified Canon 400D on a Celestron Nexstar 11 GPS, focal reduced to F6.3. Guided manually via piggybacked Skywatcher ED 80 and Modified ToUcam.
Thanks for looking!
Baz.
http://i26.tinypic.com/ang6s3.jpg
http://i26.tinypic.com/20fb0ci.jpg