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Published on Aug 14, 2008
Telescopes with fork equatorial mounts rotate to follow the arc of the sun, not in straight lines. Learn how to use equatorial mounts for a telescope from 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