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Old 23-06-2018, 03:04 PM
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5ash (Philip)
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5ash is offline
 
Join Date: Mar 2005
Location: Hunter valley. nsw
Posts: 1,117
Is this a Processing artifact on crater Birt ?

Took these pictures of Rupes recta and Crater "Birt" on Friday night.. They are about 40 minutes apart, the first taken when i was setting up shows 2 tiny "Diffraction like" spikes on top edge of “Birt” which are not present in the second picture .I have enlarged and cropped to show the effect more clearly . The seeing was fairly good as can be seen by the picture of jupiter. It must have been a processing artifact as nothing obvious appears on the AVI.Thought I'd share it though.
regards philip
Attached Thumbnails
Click for full-size image (artifact.JPG)
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Click for full-size image (no artifact birt.JPG)
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Click for full-size image (birt3.JPG)
14.7 KB87 views
Click for full-size image (noartifact birt crop.JPG)
10.2 KB70 views
Click for full-size image (jupiter.JPG)
12.7 KB61 views

Last edited by 5ash; 24-06-2018 at 04:17 PM. Reason: Addition
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