On Wed, 24 Sep 2008 11:54:48 +0100, Pete Lawrence
wrote:

Here's a shot of Copernicus, taken under good seeing conditions...

http://www.digitalsky.org.uk/lunar/c...-04_Red_cn.jpg

Hi Pete-

Both images are excellent. A few questions: are these single shots, or
did you use some lucky imaging? What was the exposure time? From the
file names, I'm guessing you've isolated the red channel? Is that to
control atmospheric dispersion?
_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com