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Old 27-05-2015, 11:38 AM
raymo
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raymo is offline
 
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
I have a question that is a bit off topic, but is nicely illustrated by one of
Charles' images.
How is it that the blue in M20 is nicely shown, but the blue in the centre
of M8 is totally absent ?
raymo
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