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Originally Posted by netwolf
I also realise that i myself was causing to much movement in the scope, next time i will just let it drift through. Instead of trying to move the scope. I wonder if someone could estimate how long it should stay in FOV with a Neximage 2xbarlowed in a 10" F5. This way i can set my capture time to this length and grab one long sequence then chop it up with Virtualdub.
Regards
Netwolf
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Hi Wolfie
I just created a Field Of View indicator in Starry Night Pro for a 10inch f10 telescope (f5 with x2 Barlow) and assumed that the Neximage was equivalent to a Meade LPI, i.e. 640x480 pixels, chip = 4.8mm x 3.6mm.
When I turned on the FOV and let SNP run at x1 sidereal rate, Saturn traversed the ccd's (longer) 640 axis, in 24 seconds.
The attached screen print of Saturn from SNP looks about right compared to your images.
Cheers
Dennis