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Old 18-11-2014, 11:00 PM
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doppler (Rick)
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Join Date: Nov 2012
Location: Mackay
Posts: 1,691
I had an old scope and the coating on the secondary had cracks and was starting to peel, but it never showed up in the images. A dirty mirror just makes the image duller.
But thats a nice shot of Ngc 253
Rick
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