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Old 21-07-2007, 02:01 AM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,689
Hi Scott

Yes your image of M20 was pretty good, I remember it

The difference I see between good seeing and bad seeing nights with the Starfire is rather large actually. Here are two images of Cen A taken through the Starfire on the NJP mount with the same camera (SXV-H9) a month or so apart.

Bad seeing (6 X 2min lum):

http://www.pbase.com/strongmanmike20...30883/original

Great seeing (6 X 5min Lum):

http://www.pbase.com/strongmanmike20...61953/original

The bad seeing image had only DDP sharpening done to it (any more and it would have been pushing shi# up hill), while the good seeing night is the final result of complete processing but still..amazing difference huh??

The seeing two nights ago for the M20/21 image was similar to the bad seeing night image above but it was heavier wind so hopfully a still & steady night will produce much better results as the above comparison illustrates but I will have a 10X larger field now

Cheers

Mike
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