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Crater Mersenius


Crater Mersenius

Telescope: 10 inch f/ 5.7 Dobsonian 6mm eyepieces 241x Date: 10-12-2008, 1:00 - 2:45 UT Temperature: 16° C (61° F) clear, calm, humid Seeing: Antoniadi III, II Colongitude: 60.4 ° Lunation: 12.7 days Illumination: 90.6 % Frank McCabe






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