Re: [ATM] Those ghosts in the 16 inch ultrathin

[Dale Eason <atmpob@yahoo.com>]

I think you said they moved when turning the eyepiece.
 If so then it is a function of the eyepiece and not
the mirror.  If I didn't remember correctly then
nevermind.

Dale Eason

--- vorblesnak@peak.org wrote:

> Not much response, of course this was covered pretty
> fully with the
> Coulter question.  However, I have a question.
> 
> Could the ghost and the occasional double airy disk
> be caused by
> astigmatism?  Dale Eason found some in that mirror,
> and Mel Bartels
> concurred.  So, could astigmatism cause the ghost
> and or the double airy
> disk?
> 
> David Davis
> Toledo, OR 97391
> 
> 
> 
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