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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > altazimuth telescope > Gemini Telescope South
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Gemini Telescope South comparison table
Subject has comment 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 focal ratio has aperture has mount has mounting manufacturer has definition has longitude has mirror diameter has primary mirror shape has creation date
altazimuth telescope    in degrees, minutes, seconds (N or S)  Earth based telescope ambient height above sea level in meters   altazimuththe person, company or institution that constructed the mountingA form of mounting similar to that of a radar which allows the telescope tube to be moved horizontally (by rotation in azimuth or compass direction) and vertically (by rotation in altitude or elevation). To follow a star the telescope must be adjusted simultaneously in both axes. (also called alt-az)in degrees, minutes, seconds (E or W)   
optical telescope astroweb     electromagnetic telescope              
Ritchey-Chrétien     convex hyperboloidthe person, company or institution that created the mirrorreflectorRitchey-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 
Gemini Telescope SouthPartners in the Gemini project are the US, UK, Canada, Chile, Brazil, and ArgentinaastrowebCerro Pachon, ChileCerro Tololo Inter-American Obs.30° 21' Sconvex hyperboloidthe person, company or institution that created the mirror  ambientmaterial and other engineering details2725 maltazimuth telescopef/1.8, 68.1 maltazimuththe person, company or institution that constructed the mounting 70° 49' Wequal to aperture (except for Schmidt which has aperture smaller than mirror diameter)concave hyperboloid(2000)

Next altazimuth telescopeGran Telescopio Canarias    Upaltazimuth telescope, optical telescope, Ritchey-Chrétien    Previous altazimuth telescopeGemini Telescope North