RE: [OM] exposure for planets etc

[John Gettis]

Try this site It is for Michael Covington
http://www.covingtoninnovations.com/astro/index.html
He used to be a contributor to the list but got too busy.  This mentions a
book he wrote.  I have a older version, it covers what you want to know and
then some.  Hope this helps John Gettis


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