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physical object > artifact > device > instrument > telescope > electromagnetic telescope > Earth based telescope > altazimuth telescope > Bol'shoi Teleskop Azimutal'nyi
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Bol'shoi Teleskop Azimutal'nyi comparison table
Subject has reference has latitude is an instance of has focal ratio has location has altitude has mounting manufacturer has owner has mirror maker has temperature has primary mirror shape has mirror diameter has mirror type has aperture has optical design is a kind of has comment has creation date has mount has longitude has synonym has secondary mirror shape has definition
altazimuth telescope in degrees, minutes, seconds (N or S)   height above sea level in metersthe person, company or institution that constructed the mounting  ambient     Earth based telescope  altazimuthin degrees, minutes, seconds (E or W)  A 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)
optical telescopeastroweb              electromagnetic telescope       
Ritchey-Chrétien        the person, company or institution that created the mirror concave hyperboloidequal to aperture (except for Schmidt which has aperture smaller than mirror diameter)material and other engineering detailsor primary mirror diameterRitchey-Chrétienreflector     convex hyperboloidA system of two mirrors, aspherized to give an image at the secondary (Cassegrain) focus free from spherical aberration and coma.
Bol'shoi Teleskop Azimutal'nyiastroweb43° 39' Naltazimuth telescopef/4, 30Mount Pastukhov, Russia2100 mLOMOSpecial Astrophysical Obs.LOMOambientconcave hyperboloidequal to aperture (except for Schmidt which has aperture smaller than mirror diameter)Sitall glass6.00 m  Primary mirror replaced in about 1984, and a third made of Sitall glass was figured in 19921975altazimuth41° 26'E6 mconvex hyperboloid 

Next altazimuth telescopeGemini Telescope North    Upaltazimuth telescope, optical telescope, Ritchey-Chrétien    Previous altazimuth telescopeAstrophysical Research Consortium Telescope