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Old 02-05-2015, 08:34 PM
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Astroman (Andrew Wall)
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Astroman is offline
 
Join Date: Feb 2005
Location: Paralowie, South Australia
Posts: 4,367
So what does it mean if I am looking at a slightly defocused star with central obstruction in the centre, then move to the other side of focus and it is off to one side? If I try and get it into the centre the other side is wrong. I would just be going around in circles.
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