Quote:
Originally Posted by rat156
Hi Paul,
One othe thing to note that unless you're guiding around a star in the centre of the field (which would be difficult with my experience of OAG) then the field rotation shouldn't be symmetrical around the centre of your field.
From my experience the field rotation is centred on the guide star.
Cheers
Stuart
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Yeah that is true. This rotation is nearly symmetrical.
Lums taken on the Eastern side of the meridian have this problem more than on the Western side.