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Date: 2003-05-07 08:54:31Astronomy Amateur telescope making Newtonian telescope Cassegrain reflector Figuring Dobsonian telescope Telescope Secondary mirror Eyepiece Observational astronomy Telescope types Telescopes | 4 Telescope Making Basics 4.1Add to Reading ListSource URL: www.willbell.comDownload Document from Source WebsiteFile Size: 2,44 MBShare Document on Facebook |
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