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Sextant - Wikipedia 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
How Sextants Work: An Illustrated Guide – Casual Navigation A sextant is a navigational instrument that measures the angle between two objects It uses a pair of mirrors to overlay one object over the other The angle between the objects is proportional to the angle between the mirrors, so you can read it directly from the arc of the sextant
A Comprehensive Guide to Marine Sextant A sextant is a marine navigation instrument used to measure the angle between two objects Learn everything about Sextants in this article
Sextant | Navigation, Celestial Measurement Astronomy . . . 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
What is a Sextant and How Does it Work? - Orbitshub 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
What is Sextant, its types, principle and errors - MarineGyaan Sextant is one of the oldest navigation instruments used by mariners, its called sextant because its arc is 1 6th of a circle i e 60° but it can measure angles upto 120° using double reflection principle
Sextant | Encyclopedia. com sextant, instrument for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical position or for other navigational, surveying, or astronomical applications