Keyword Analysis & Research: sextant


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sextant1.6711046157

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  • Sextant - Wikipedia

    wikipedia.org

    https://en.wikipedia.org/wiki/Sextant

    WebA sextant. 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.

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  • How Sextants Work: An Illustrated Guide – Casual Navigation

    casualnavigation.com

    https://casualnavigation.com/how-sextants-work-an-illustrated-guide/

    WebA sextant is a navigational instrument used to measure angles. In celestial navigation, it measures the angle between the horizon and a celestial body (e.g. a star or a planet). Used horizontally, it can measure the angle between two terrestrial objects (e.g. a …

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  • Sextant | Navigation, Celestial Measurement & Astronomy

    britannica.com

    https://www.britannica.com/technology/sextant-instrument

    Websextant, 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 device consists of an arc of a circle, marked off in degrees, and a movable radial arm pivoted at the centre of the circle.

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  • Understanding Marine Sextant - Principle, Readings and …

    marineinsight.com

    https://www.marineinsight.com/marine-navigation/what-is-a-sextant/

    WebJan 29, 2024 · The 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 find out the latitude and longitude. Sextant derives its name from the Latin word’ sextus; or ‘one-sixth’, as the sextant’s arc spans 60° or one-sixth of a circle.

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  • Navigating to the Sextant | Naval History Magazine - June 2020, …

    usni.org

    https://www.usni.org/magazines/naval-history-magazine/2020/june/navigating-sextant

    WebA well-maintained sextant is accurate to within a half-minute (about one-half a nautical mile). Small wonder, then, that the sextant remains essentially unchanged today. But the stars that helped the first navigators sail across open water have today been supplemented by man-made celestial bodies.

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  • What Is A Sextant? Explained By A Ship’s Officer

    casualnavigation.com

    https://casualnavigation.com/what-is-a-sextant-explained-by-a-ships-officer/

    WebThe 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.).

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  • Sextant | Time and Navigation - Smithsonian Institution

    si.edu

    https://timeandnavigation.si.edu/multimedia-asset/sextant

    WebSextant, made by Jesse Ramsden, last quarter of 18th century. The sextant became the symbol of navigation. The instrument is named for its scale—60 degrees or 1/6th of a circle—and can measure even greater angles than the octant.

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  • Sextant | Encyclopedia.com

    encyclopedia.com

    https://www.encyclopedia.com/science-and-technology/astronomy-and-space-exploration/astronomy-general/sextant

    WebJun 11, 2018 · A sextant is a navigational instrument that uses a telescope and an angular scale to calculate latitude and longitude. Making a measurement with a sextant is called sighting the object or taking a sight. The optical instruments called sextants have been used as navigation aids for centuries, especially by seafarers.

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  • The Marine Sextant — Principles, Use, and Buying Guide

    amnautical.com

    https://www.amnautical.com/a/s/blogs/news/the-marine-sextant-principles-use-and-buying-guide

    WebOct 14, 2022 · What Is a Sextant? A sextant is a device used to measure the angle between two objects. Usually, these two objects are the horizon and an astronomical body, such as the moon, sun, star or planetary body. Navigators then use these measurements at sea to calculate a vessel's latitude. This type of use is known as Vertical Sextant Angle, …

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  • Sextant: A Young Man's Daring Sea Voyage and the Men Who …

    google.com

    https://books.google.com/books/about/Sextant.html?id=_COSAgAAQBAJ

    WebMay 13, 2014 · A navigation tool that measures the angle between a celestial object and the horizon, the sextant allowed sailors to pinpoint their exact location at sea.David Barrie chronicles the sextant's...

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