A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. The meaning of sextant is an instrument for measuring angular distances used especially in navigation to observe altitudes of celestial bodies (as in ascertaining latitude and longitude). Sextant, instrument for determining the angle between the horizon and a celestial body such as the sun, the moon, or a star, used in celestial navigation to determine latitude and longitude The device consists of an arc of a circle, marked off in degrees, and a movable radial arm pivoted at the A device used on a ship or aircraft for measuring angles, such as those between stars or that…
An optical instrument used in navigation and consisting of a telescope through which a sighting of a heavenly.click for more definitions. Definition of sextant noun in oxford advanced learner's dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. An astronomical instrument used to determine latitude and longitude at sea by measuring angular distances, especially the altitudes of sun, moon, and stars. See examples of sextant used in a sentence.
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