Telescopes
Chabot Space and Science Center has three observatory telescopes. "Leah", an 8" refractor telescope, was built in 1883 by Alvan Clark and donated by Anthony Chabot. "Rachel" is a 20" refractor telescope, commissioned in 1914 from Warner & Swasey, with optics by John Brashear. It is the largest refractor in the western United States regularly open to the public. "Nellie" is a 36" reflecting telescope which opened in June 2003 and is housed in a rolling roof observatory.
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