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more about azimuth
azimuth |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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-r[=a]'s the vertex of the heaven. Cf {Zenith}.] (Astron. & Geodesy) a The quadrant of an azimuth circle. b An arc of the horizon intercepted between the meridian of the place and a vertical circle passing through the center of any object; as the azimuth of a star; the azimuth or bearing of a line surveying. Note: In trigonometrical surveying, it is customary to reckon the azimuth of a line from the south point of the horizon around by the west from 0[deg] to 360[deg]. {Azimuth circle}, or {Vertical circle}, one of the great circles of the sphere intersecting each other in the zenith and nadir, and cutting the horizon at right angles. --Hutton. {Azimuth compass}, a compass resembling the mariner's compass, but having the card divided into degrees instead of rhumbs, and having vertical sights; used for taking the magnetic azimuth of a heavenly body, in order to find by comparison with the true azimuth, the variation of the needle. {Azimuth dial}, a dial whose stile or gnomon is at right angles to the plane of the horizon. --Hutton. {Magnetic azimuth}, an arc of the horizon, intercepted between the vertical circle passing through any object and the magnetic meridian. This is found by observing the object with an azimuth compass. From WordNet r 1.6 [wn]: azimuth n : the azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian [syn: {AZ}]
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