Re: [ATM] difference 1/8 1/16 1/20 wave?

["Bob May" <bobmay@nethere.com>]

You might want to go back in time and see what Peter Ceravolo did with a set
of 4 6" telescopes.  He did the 4 telescopes to differing amounts of errors
in the mirrors and found that it took an excellent observer to see the
difference between the 1/8 and the 1/16 wave error telescopes and then only
on an excellent night of seeing.  There may be somebody out there that whose
eye's will demand a better quality mirror but that person will be relatively
rare.  This set of testing tends to put the perfect level of telescope to be
on the order of 1/15 - 1/20 wave mirror.  Anything better, of course, is
nice but not needed.  Anything less can lead to a loss of detail when
conditions permit.
Bob May
bobmay@nethere.com
http://nav.to/bobmay
http://bobmay.astronomy.net

_______________________________________________
ATM mailing list http://www.atmlist.net/