Learn about the history, design, types and uses of sextants for celestial navigation and position finding. 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 relative to the horizon. A sextant is a double reflection instrument that measures angles in the same plane It is used to measure the altitude of celestial bodies and calculate the ship's position at sea Learn the principle, errors, corrections and sight taking of a sextant.
A sextant is a precision optical instrument that measures the angle between a celestial body and the horizon for navigation Learn how it works, its types, and its practical uses in maritime, aviation, land surveying, and emergency situations. In this two part episode, dr Bob looks at the basic operation of a sextant for 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.
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