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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > Horseshoe equatorial telescope > George Ellery Hale Telescope

George Ellery Hale Telescope (200 inch)
subject			fact

George Ellery Hale Telescope	has mounting manufacturer Westinghouse
	has mounting Horseshoe yoke mount
	has longitude 116° 52' W
	has latitude 33° 21' N
	has mirror maker J.A. Anderson
	has mirror type ribbed Corning Pyrex
	has aperture 5.08 m
	has focal ratio f/3.3. 16, 30
	has synonym 200 inch
	has operator California Institute of Technology
	has altitude 1706 m
	has owner Palomar Observatory
	has creation date 1948
	has location Palomar Mountain, Calif., US
	is an instance of Cassegrain
	is an instance of optical telescope
	is an instance of Horseshoe equatorial telescope
Cassegrain	has secondary mirror shape convex hyperboloid
	has primary mirror shape concave paraboloid
	has optical design Cassegrain
optical telescope	has optical design
	has reference astroweb
reflector	has mirror diameter equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)
Earth based telescope	has temperature ambient
telescope	has wavelength sensitivity
	has angular resolving power
	has effective diameter
	has purpose observe celestial objects
artifact	has creator
physical object	has angular momentum
	has mass
	has velocity
	has momentum
	has volume
	has extent
	has material

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