Thread: Thoughts on UO Orthoscopics
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Old 08-08-2009, 09:36 AM
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wavelandscott (Scott)
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wavelandscott is offline 		 
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Quote:
Originally Posted by ausastronomer View Post
Another good book is the Backyard Astronomers Guide by Dickinson and Dyer, which is somewhat more expensive.

Cheers,
John B

I've found this to be an excellent reference too!

Cheers
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