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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 comparison table

Subject	has reference	has location	has owner	has latitude	has secondary mirror shape	has mirror maker	is a kind of	has optical design	has temperature	has mirror type	has altitude	is an instance of	has synonym	has focal ratio	has aperture	has mount	has definition	has mounting manufacturer	has longitude	has mirror diameter	has primary mirror shape	has creation date
Cross-axis equatorial telescope				in degrees, minutes, seconds (N or S)			equatorial telescope		ambient		height above sea level in meters					equatorial with cross-axis		the person, company or institution that constructed the mounting	in degrees, minutes, seconds (E or W)
optical telescope	astroweb						electromagnetic telescope
Ritchey-Chrétien					convex hyperboloid	the person, company or institution that created the mirror	reflector	Ritchey-Chrétien		material and other engineering details					or primary mirror diameter		A system of two mirrors, aspherized to give an image at the secondary (Cassegrain) focus free from spherical aberration and coma.			equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)	concave hyperboloid
Harlan J. Smith Telescope	astroweb	Mount Locke, Texas, US	McDonald Observatory	30° 4d N	convex hyperboloid	Davidson Optronics			ambient	Fused-silica	2075 m	Cross-axis equatorial telescope	107 inch	f/3.9, 8.8, 18	2.72 m	Cross-axis equatorial		Westinghouse	104° 01' W	equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)	concave hyperboloid	1969

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