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Looking at life through a 20-inch telescope in Danbury
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What can I expect from a 20" Dobsonian? - Major & Minor Planetary Imaging - Cloudy Nights
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What can I expect from a 20" Dobsonian? - Major & Minor Planetary Imaging - Cloudy Nights
20 inch diameter refracting telescope from Warner and Swasey, nicknamed Rachel, originally installed at Chabot Observatory in 1914 and now used at the Chabot Space and Science Center, a science museum and
