compass meridian line

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• Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …   Wikipedia

• Meridian (geography) — This article is about the geographical concept. For other uses, see meridian (disambiguation). The prime meridian at Greenwich, England. Since the adoption of WGS84, the meridian is now a couple of hundred metres or so east of this point A… …   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

• Classical compass winds — The Tower of the Winds in Athens Classical compass winds refers to the naming and association of winds in Mediterranean classical antiquity (Ancient Greece and Rome) with the points of geographic direction and orientation. Ancient wind roses… …   Wikipedia

• Transit compass — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …   The Collaborative International Dictionary of English

• transit compass — Transit Trans it, n. [L. transitus, from transire to go over: cf. F. transit. See {Transient}.] 1. The act of passing; passage through or over. [1913 Webster] In France you are now . . . in the transit from one form of government to another.… …   The Collaborative International Dictionary of English

• Azimuth compass — Azimuth Az i*muth, n. [OE. azimut, F. azimut, fr. Ar. as sum?t, pl. of as samt a way, or perh., a point of the horizon and a circle extending to it from the zenith, as being the Arabic article: cf. It. azzimutto, Pg. azimuth, and Ar. samt al… …   The Collaborative International Dictionary of English

• rhumb line — noun a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction • Syn: ↑rhumb, ↑loxodrome • Hypernyms: ↑line * * * ˈrəm|līn noun : a line on the surface of the earth …   Useful english dictionary

• Rhumb line — In navigation, a rhumb line (or loxodrome) is a line crossing all meridians at the same angle, i.e. a path of constant bearing. Unlike a great circle route (for which bearing is not constant), following a rhumb line requires turning the vehicle… …   Wikipedia

• Declination compass — Declination Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or… …   The Collaborative International Dictionary of English

• Declination of the compass — Declination Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or… …   The Collaborative International Dictionary of English