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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > equatorial telescope > Cross-axis equatorial telescope > Harlan J. Smith Telescope

Harlan J. Smith Telescope (107 inch)
subject			fact

Harlan J. Smith Telescope	has mounting manufacturer Westinghouse
	has mounting Cross-axis equatorial
	has longitude 104° 01' W
	has latitude 30° 4d N
	has mirror maker Davidson Optronics
	has mirror type Fused-silica
	has aperture 2.72 m
	has focal ratio f/3.9, 8.8, 18
	has synonym 107 inch
	has altitude 2075 m
	has owner McDonald Observatory
	has creation date 1969
	has location Mount Locke, Texas, US
	is an instance of Ritchey-Chrétien
	is an instance of optical telescope
	is an instance of Cross-axis equatorial telescope
Ritchey-Chrétien	has secondary mirror shape convex hyperboloid
	has primary mirror shape concave hyperboloid
	has optical design Ritchey-Chrétien
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 operator
	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

Up: Cross-axis equatorial telescope, optical telescope, Ritchey-Chrétien