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The 1100 mm - 43 inch f/3.6 Cruxis Telescope
Mirror Edge Support Calculator for Dobsonian telescopes Mirror Cooling Calculator for telescope mirrors Limiting Magnitude Calculator for telescopes Spring Counterweights on Dobsonian telescopes NEW October 2020 635 mm - 25 inch f/5 Dobsonian Telescope 406 mm - 16 inch f/5 Computer Controlled Alt-azimuth Telescope Dr. Hänssgen's 1070 mm - 42 inch f/4.5 Dobsonian Telescope | ||||
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Houdini Chess Engine | ||||
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