Word of the Day - azimuth

azimuth

/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.)