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  2. Nautical almanac - Wikipedia

    en.wikipedia.org/wiki/Nautical_almanac

    To find the position of a ship or aircraft by celestial navigation, the navigator measures with a sextant the apparent height of a celestial body above the horizon, and notes the time from a marine chronometer. That height is compared with the height predicted for a trial position; the arcminutes of height difference is how many nautical miles ...

  3. Sea Cloud - Wikipedia

    en.wikipedia.org/wiki/Sea_Cloud

    Sea Cloud is a sailing cruise ship owned by Sea Cloud Cruises of Hamburg, Germany.Launched as a private yacht as Hussar V for Marjorie Merriweather Post in 1931, she later served as a weather ship for the United States Coast Guard and United States Navy during World War II, when she became the U.S. military's first racially integrated warship since the American Civil War. [1]

  4. List of satellite pass predictors - Wikipedia

    en.wikipedia.org/wiki/List_of_satellite_pass...

    It features a filtering system for the catalog to only display objects with matching name or ID. The pass predictions generates, among other things, the time window, minimum elevation and the apparent brightness of the object in the sky. Satellite Tracking provides detailed real-time and pass predictions for Earth orbiting satellites.

  5. I Sailed the Mediterranean on a Historic Yacht That Once ...

    www.aol.com/sailed-mediterranean-historic-yacht...

    Here's your rare chance to inhabit the seafaring world of Marjorie Merriweather Post. Here, what it's like to sail the Mediterranean on the Sea Cloud yacht.

  6. Longitude by chronometer - Wikipedia

    en.wikipedia.org/wiki/Longitude_by_chronometer

    In order to calculate the position line, the time of the sight must be known so that the celestial position i.e. the Greenwich Hour Angle (Celestial Longitude - measured in a westerly direction from Greenwich) and Declination (Celestial Latitude - measured north or south of the equational or celestial equator), of the observed celestial body is ...

  7. Navigational instrument - Wikipedia

    en.wikipedia.org/wiki/Navigational_instrument

    It could be used to find the altitude of the Sun or determine local time. It let sunlight shine through a small orifice on the rim of the instrument. The point of light striking the far side of the instrument gave the altitude or tell time. All those mentioned were the traditional instruments used until well into the second half of the 20th ...

  8. Satellite navigation solution - Wikipedia

    en.wikipedia.org/wiki/Satellite_navigation_solution

    Satellite navigation solution for the receiver's position (geopositioning) involves an algorithm.In essence, a GNSS receiver measures the transmitting time of GNSS signals emitted from four or more GNSS satellites (giving the pseudorange) and these measurements are used to obtain its position (i.e., spatial coordinates) and reception time.

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