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Old 21-03-2009, 10:10 PM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,694
Well Leon to be honest it's hard to tell any difference at that image size other than the longer exposure is more magenta. Perhaps you processed the two night image differently? Have you noticed a reduction in noise?

Mike
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