Crossley telescope

Crossley telescope
Mosaic image of the Crossley telescope.
Alternative namesCrossley Reflector
Location(s)Santa Clara County, California, Pacific States Region
Coordinates37°20′18″N 121°38′39″W / 37.33824451°N 121.64426154°W / 37.33824451; -121.64426154
DiscoveredMayall's Object
Diameter36 in (0.91 m)
Websitewww.ucolick.org/public/telescopes/crossley.html
Location of Crossley telescope
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The Crossley telescope is a 36-inch (910 mm) reflecting telescope located at Lick Observatory in the U.S. state of California. It was used between 1895 and 2010, and was donated to the observatory by Edward Crossley, its namesake.

It was the largest glass reflecting telescope in the United States for several years after its recommissioning in California. Lick Director, James Edward Keeler, remarked of the Crossley in 1900, "... by far the most effective instrument in the Observatory for certain class of astronomical work."