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Old 19-03-2007, 11:37 PM
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AstroJunk (Jonathan)
Shadow Chaser

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Join Date: Jan 2006
Location: Moonee Beach
Posts: 1,945
Quote:
Originally Posted by Rodstar View Post
Jonathan, the "hole" is just an artifact of the way in which the inteferometer test is performed. My mirror is no donut!
That's good - I've never seen the OMI tests before - the galaxy tests don't show a hole unless there is one.

And those holes make for difficult laser alignment!
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