The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. 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 sextant is a navigational instrument used to measure angles In celestial navigation, it measures the angle between the horizon and a celestial body (the sun, moon, planets or stars), and in terrestrial navigation, it measures the angle between two charted objects (lighthouses, piers, etc.). A sextant is a navigation instrument used to measure the angles between celestial bodies and the horizon It works by aligning the index mirror with the celestial body and reflecting its image onto the horizon mirror.
Learn the art of celestial navigation with a marine sextant Learn its history, components, and techniques for accurate, navigation. A sextant is a navigational instrument used to measure the angle between two visible objects Most commonly, it measures the angle between a celestial body (such as the sun, moon, or stars) and the horizon.
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