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Old 22-11-2013, 05:31 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
Join Date: Dec 2007
Location: The Shire
Posts: 7,127
Originally Posted by Shiraz View Post
Hubble is a bad example - no atmosphere.

as long as the optics outperforms the atmosphere, the result will be as good as you can get.
I guess you missed the point..... an atmosphere would only confuse the issue.

The RC design, polish, baffling secondary size etc. in the Hubble remained identical with pre and post servicing.

Problem was it had a 1/2 wave of spherical error....and images looked like crap. Even in a vacuum.

Co-star fixed the error. Images became world famous.

Now add seeing to the dud mirror....this is your (bad) baseline. Capish?

Last edited by Peter Ward; 22-11-2013 at 05:35 PM. Reason: clarification
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