Azimuthal equidistant projection



a projection in which the shortest distance between any point and a central point is a straight line, such a line representing a great circle through the central point.
azimuthal equidistant projection
(āz’ə-mŭth’əl)
An azimuthal map projection designed so that a straight line from the central point on the map to any other point gives the shortest distance between the two points. Azimuthal equidistant maps are used mainly for plotting direction and distance from the map’s central point, but measurements originating from other points on the map can be greatly distorted.

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  • Azimuthal

    Astronomy, Navigation. the arc of the horizon measured clockwise from the south point, in astronomy, or from the north point, in navigation, to the point where a vertical circle through a given heavenly body intersects the horizon. Surveying, Gunnery. the angle of horizontal deviation, measured clockwise, of a bearing from a standard direction, as from […]

  • Azimuth circle

    a device for measuring azimuths, consisting of a graduated ring equipped with a sighting vane on each side, which fits concentrically over a compass. Historical Examples An arc of the horizon intercepted between the azimuth circle of a celestial object and the magnetic meridian. The Sailor’s Word-Book William Henry Smyth The mean of all the […]



  • Azimuth bar

    a device used in measuring azimuths, consisting of a bar with a sighting vane at each end,pivoted at its center, and rotating in a horizontal plane around the center of a compass.

  • Azilian

    of, relating to, or characteristic of an early Mesolithic culture of southern France and northern Spain. Historical Examples These skeletons lay in the ‘Azilian’ layer (VI) described below. Men of the Old Stone Age Henry Fairfield Osborn The transformation of art and industry, indicated in the Azilian culture layer, is as decided as that in […]



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