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Old 29-01-2008, 05:50 PM
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goober (Doug)
No obs, raising Harrison

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Join Date: Nov 2007
Location: Melbourne, Australia
Posts: 796
I remember reading an article somewhere on an alternate collimation technique for less than perfect seeing. Of course, I can't find it now. The gist of it was you strongly defocus the star, and collimate based on the position of the secondary mirror shadow within the out of focus star.
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