Re: [ATM] More on aperature stops

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

>>
I have seen this - a large, well-defined and
homogeneous halo around bright planets, but I haven't been able
to pinpoint
the cause. But the distinct edge, also shown on the sketch, does
not look
much like scatter.
>>
Yep, the image just didn't tend to indicate scatter as the ghost
was offset from the image which more means ghosts in the EP.
Scatter, whether by tube currents or by a bad mirrror, would be
centered on the image.
I, along with a lot of others, have seen both scatter and
ghosting in their telescopes when viewing very bright objects.

Bob May
bobmay at nethere.com
http: slash /nav.to slash bobmay
http: slash /bobmay dot astronomy.net
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