/ˈazɪməθ/
noun
1 The direction of a celestial object from the observer, expressed as the angular distance from the north or south point of the horizon to the point at which a vertical circle passing through the object intersects the horizon.
1.1 The horizontal angle or direction of a compass bearing.
Origin
Late Middle English (denoting the arc of a celestial circle from the zenith to the horizon): from Old French azimut, from Arabic as-samt, from al ‘the’ + samt ‘way, direction’.
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Isaac Asimov explained how to set a telescope precisely using azimuth and altitude angles. Asimov made it easy. (In spite of that, nobody called him Isaac Azimuth.)
