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Gallery David George-Kennedy Equipment 15" f/3.7 Truss Ronchigrams 05-1R-MOB-intra3
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Ronchigrams

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2014 10 23rd Sunspot AR 2192 & Partial Solar Eclipse

2014 10 23rd Sunspot AR 2192 & Partial Solar Eclipse

Date: 10/23/2014 Views: 10879

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