Very Large Telescope Comparison Table

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Very Large Telescope comparison table

Subject has reference has latitude is an instance of has focal ratio has diagram has location has altitude has mounting manufacturer has owner has mirror maker has acronym 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 image has secondary mirror shape has definition

altazimuth telescope in degrees, minutes, seconds (N or S) height above sea level in meters the person, company or institution that constructed the mounting ambient Earth based telescope altazimuth in 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)

array telescope electromagnetic telescope a telescope composed of an array of separete individual elements acting in concert

optical telescope astroweb electromagnetic telescope

Ritchey-Chrétien the person, company or institution that created the mirror concave hyperboloid equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) material and other engineering details or primary mirror diameter Ritchey-Chrétien reflector convex hyperboloid A system of two mirrors, aspherized to give an image at the secondary (Cassegrain) focus free from spherical aberration and coma.

Very Large Telescope astroweb 24° 51' S array telescope f/13.5, 15 (each mirror) Cerro Paranal, Chile 2640 m the person, company or institution that constructed the mounting European Southern Observatory REOSC VLT ambient concave hyperboloid equal to aperture (except for Schmidt which has aperture smaller than mirror diameter) Schott Zerodur, active optics 16 m equivalent Four separate telescopes and domes, first unit became operational in 1998 2001 altazimuth 70° 27' W convex hyperboloid

Subject	has reference	has latitude	is an instance of	has focal ratio	has diagram	has location	has altitude	has mounting manufacturer	has owner	has mirror maker	has acronym	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 image	has secondary mirror shape	has definition
altazimuth telescope		in degrees, minutes, seconds (N or S)					height above sea level in meters	the person, company or institution that constructed the mounting				ambient						Earth based telescope			altazimuth	in 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)
array telescope																		electromagnetic telescope							a telescope composed of an array of separete individual elements acting in concert
optical telescope	astroweb																	electromagnetic telescope
Ritchey-Chrétien										the person, company or institution that created the mirror			concave hyperboloid	equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)	material and other engineering details	or primary mirror diameter	Ritchey-Chrétien	reflector						convex hyperboloid	A system of two mirrors, aspherized to give an image at the secondary (Cassegrain) focus free from spherical aberration and coma.
Very Large Telescope	astroweb	24° 51' S	array telescope	f/13.5, 15 (each mirror)		Cerro Paranal, Chile	2640 m	the person, company or institution that constructed the mounting	European Southern Observatory	REOSC	VLT	ambient	concave hyperboloid	equal to aperture (except for Schmidt which has aperture smaller than mirror diameter)	Schott Zerodur, active optics	16 m equivalent			Four separate telescopes and domes, first unit became operational in 1998	2001	altazimuth	70° 27' W		convex hyperboloid