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Yeah thanks Jeff, A tighter field of view is a tempting idea but it would require excellent seeing, and the tracking of such a small area for 7hrs or more, will be a serious challenge.
As far as I know, the so-called Lunar rate in a CGEM only uses an average Lunar RA rate, and does not track the moon in DEC. In my 7hr session I had to re-align the target area very often. Even then, I had to rotate and align the individual video clips in post editing.
Apparently if you can run EQMOD (which is not developed for Celestron Mounts) it is possible to download the Lunar emphemeris from NASA and have the mount track accurately in both RA and DEC.
Steve
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