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Old 03-01-2011, 11:01 PM
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OzRob (Rob)
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Join Date: May 2009
Location: Thailand
Posts: 446
Quote:
Originally Posted by leinad View Post
Those dust motes of yours look like they are caused by the primary. Those small dark motes in Peters image are often from the ccd.
I think they are too small to be on the primary mirror. It is probably on the nose filter but just too small to see. Here is a calculator to estimate the chip to dust distance: Dust Donut Calculator
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