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Published on Aug 14, 2008
Schmidt-Cassegrain telescopes can collect frost or dew on viewing plates, but simple heating devices can keep viewing crystal clear. Care for Schmidt-Cassegrain telescopes with an observatory director in this free astronomy video.
Expert: Rocky Alvey & Billy Teets Bio: Rocky Alvey is the assistant director of the Vanderbilt Dyer Observatory and has been involved in astronomy since 1969. Filmmaker: Dimitri LaBarge