astrocompass wikipedia - EAS

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

    An astrocompass is a navigational tool for determining the direction of true north through the positions of various astronomical bodies. There are certain circumstances when magnetic compasses and gyrocompasses are unreliable. The most obvious is in polar regions, where the force exerted on the … See more

    The Earth's axis of rotation remains effectively stationary throughout the year. Thus, with knowledge of the current time and geographical position in the form of latitude and longitude, which are set on the instrument using … See more

    Astrocompasses became useful only after the invention of the marine chronometer, without which they are almost useless for navigation. Even then, they saw only limited use, with first … See more

    Overview image

    The operation is as follows:
    1. Getting the local time (by means of a clock)
    2. Setting the latitude See more

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  2. https://en.wikipedia.org/wiki/Gyrocompass

    A gyrocompass is a type of non-magnetic compass which is based on a fast-spinning disc and the rotation of the Earth (or another planetary body if used elsewhere in the universe) to find geographical direction automatically. The use of a gyrocompass is one of the seven fundamental ways to determine the heading of a vehicle. A gyroscope is an essential component of a gyrocompass…

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      How does an astrocompass work?
      In its most basic form, the astrocompass consists of a base plate marked with the points of the compass, with a mechanism known as an equatorial drum mounted on it. On this drum is a set of adjustable sights and a scale of declination. More advanced versions may have built-in chronometers or default settings for bodies such as the Sun.
      en.wikipedia.org/wiki/Astrocompass
      Is the astrocompass now functionally obsolete?
      GPS and other similar forms of electronic navigation aids mean that the astrocompass is now functionally obsolete anywhere except for areas very close to the poles where GPS coverage is not available and there are no current electronic navigation aids.
      en.wikipedia.org/wiki/Astrocompass
      When did Astrocompasses become useful?
      Astrocompasses became useful only after the invention of the marine chronometer, without which they are almost useless for navigation. Even then, they saw only limited use, with first magnetic compasses and then gyrocompasses being preferred in almost all cases.
      en.wikipedia.org/wiki/Astrocompass
      Was the astrocompass used in WW2?
      They saw use, for example, in the North African Campaign of World War 2 . GPS and other similar forms of electronic navigation aids mean that the astrocompass is now functionally obsolete anywhere except for areas very close to the poles where GPS coverage is not available and there are no current electronic navigation aids.
      en.wikipedia.org/wiki/Astrocompass
    • https://www.merriam-webster.com/dictionary/astrocompass

      WebThe meaning of ASTROCOMPASS is a device that by mechanically solving the astronomical triangle reveals the bearing of any recognized celestial body to a navigator …

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    • Wikizero - Astrocompass

      https://wikizero.com/index.php/en//Astrocompass

      WebIn its most basic form, the astrocompass consists of a base plate marked with the points of the compass, with a mechanism known as an equatorial drum mounted on it. On this …

    • https://en.wiktionary.org/wiki/astrocompass

      Webastrocompass ( plural astrocompasses ) A form of compass in which direction is evaluated by sighting stars of known position Translations [ edit] ± show Translations Categories: English …

    • https://www.youtube.com/watch?v=noOc-AzjR2g

      WebThis is an audio version of the Wikipedia Article:https://en.wikipedia.org/wiki/Astrocompass00:00:44 1 Principle of use00:02:12 2 …

    • Engineering:Astrocompass - HandWiki

      https://handwiki.org/wiki/Engineering:Astrocompass

      WebIn its most basic form, the astrocompass consists of a base plate marked with the points of the compass, with a mechanism known as an equatorial drum mounted on it. On this …

    • https://www.sciencedirect.com/topics/earth-and-planetary-sciences/gyrocompass

      WebThey find true north, that is, the direction of Earth’s rotational axis, as opposed to magnetic north. •. They are far less susceptible to external magnetic fields, for example, those …

    • https://www.youtube.com/watch?v=KqrTGkvheF4

      WebAug 17, 2016 · Astro Compass - YouTube 0:00 / 2:52 Astro Compass 5,501 views Aug 17, 2016 54 Dislike Share Save Wistarmo Moore 130 subscribers Simple explanation of the Mk …

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    • https://wikidiff.com/astrocompass/compass

      WebAs nouns the difference between compass and astrocompass is that compass is a magnetic or electronic device used to determine the cardinal directions (usually magnetic …

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