Sextant a sextant a sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects Learn everything about sextants in this article. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.
In modern usage the term is applied to all modern. A sextant is a marine navigation instrument used to measure the angle between two objects 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.
A sextant’s main use is to measure the angle that separates a celestial body—like the sun, moon, or stars—from the horizon
