Central Meridian Longitude

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• Central European Time — Time zones of Europe: blue Western European Time (UTC+0) Western European Summer Time (UTC+01:00) light blue …   Wikipedia

• Meridian circle — Groombridge transit circle of 1806 The meridian circle, transit circle, or transit telescope is an instrument for observing the time of stars passing the meridian, at the same time measuring its angular distance from the zenith. The idea of… …   Wikipedia

• Meridian (perimetry, visual field) — This article is about the perimetry concept. For other uses of the word, see Meridian. Meridian is used in perimetry and in specifying visual fields. According to IPS Perimetry Standards 1978 (2002): Perimetry is the measurement of [an observer… …   Wikipedia

• meridian circle — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… …   The Collaborative International Dictionary of English

• Central Time — noun standard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in the central United States • Syn: ↑Central Standard Time, ↑CST • Hypernyms: ↑civil time, ↑standard time, ↑local time * * * ˈCentral time 7 [ …   Useful english dictionary

• Prime Meridian — 0° Prime Meridian …   Wikipedia

• Washington meridian — The Washington meridian was one of four prime meridians of the United States which passed through Washington, D.C.. The four which have been specified are: # through the Capitol # through the White House # through the old Naval Observatory #… …   Wikipedia

• Winter Meridian — is a part of the solstice meridiator on the celestial sphere. This meridian is located on the center of the western hemisphere. It has celestial longitude 270° (−90°) (18h). On the celestial map, Winter Meridian is located in central left side as …   Wikipedia

• 100th meridian west — The meridian 100° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.Starting at the North Pole and heading… …   Wikipedia

• 80th meridian west — The meridian 80° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, the Caribbean Sea, Central America, South America, the Pacific Ocean, the Southern Ocean, and… …   Wikipedia

• Circles of longitude — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… …   The Collaborative International Dictionary of English