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 …
Sextant | Navigation, Celestial Measurement & Astronomy | Britannica
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 Comprehensive Guide to Marine Sextant
Jan 29, 2024 · A sextant is a marine navigation instrument used to measure the angle between two objects. Learn everything about Sextants in this article.
What Is A Sextant? Explained By A Ship’s Officer
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 …
3 Ways to Use a Sextant - wikiHow
Oct 8, 2025 · A sextant is an old navigational tool that measures elevation using angular distances. You can use a sextant to determine the altitude in the sky of the sun, moon, or other celestial bodies …
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 …
What is a Sextant? - Davis Instruments
A sextant is a valuable instrument used to determine the angle between the horizon and a celestial body like the Sun, Moon, or Star. It is used in celestial navigation to calculate latitude and longitude.
What is Sextant, its types, principle and errors - MarineGyaan
Apr 29, 2025 · 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 …
The Sextant: What is it and how to use it? - Wavysail
Nov 20, 2023 · In very basic terms a sextant reading is the angle between the earth's horizon and a heavenly body (Sun Moon, Planets and Stars). This is then converted into a fix using multiple …
Sextant Navigation: How Does a Sextant Work? - Bright Hub Engineering
The marine sextant is a double reflection instrument, used for measuring angles in then same plane. The arc is graduated into degrees from right to left from 0 to 120 (sometimes a little more).