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  2. Celestial navigation - Wikipedia

    en.wikipedia.org/wiki/Celestial_navigation

    A diagram of a typical nautical sextant, a tool used in celestial navigation to measure the angle between two objects viewed by means of its optical sight. Celestial navigation, also known as astronavigation, is the practice of position fixing using stars and other celestial bodies that enables a navigator to accurately determine their actual current physical position in space or on the ...

  3. Celestial Navigations - Wikipedia

    en.wikipedia.org/wiki/Celestial_Navigations

    Celestial Navigations was an American music and story-telling group, connected to the Church of Scientology, with members Geoffrey Lewis, Geoff Levin, David Campbell, Eric Zimmerman, Bettie Ross, and Chris Many. [1] [2] [3] Their performances consisted of Lewis telling a story along with electronic music to enhance the story.

  4. List of stars for navigation - Wikipedia

    en.wikipedia.org/wiki/List_of_stars_for_navigation

    Fifty-seven navigational stars and additionally the star Polaris are given a special status in the field of celestial navigation. Of the approximately six thousand stars visible to the naked eye under optimal conditions, these selected stars are among the brightest and span thirty-eight constellations of the celestial sphere from the ...

  5. Guidance, navigation, and control - Wikipedia

    en.wikipedia.org/wiki/Guidance,_navigation,_and...

    Celestial navigation is a position fixing technique that was devised to help sailors cross the featureless oceans without having to rely on dead reckoning to enable them to strike land. Celestial navigation uses angular measurements (sights) between the horizon and a common celestial object. The Sun is most often measured.

  6. Nautical almanac - Wikipedia

    en.wikipedia.org/wiki/Nautical_almanac

    Two sample pages of the 2002 Nautical Almanac published by the U.S. Naval Observatory. A nautical almanac is a publication describing the positions of a selection of celestial bodies for the purpose of enabling navigators to use celestial navigation to determine the position of their ship while at sea.

  7. Lunar distance (navigation) - Wikipedia

    en.wikipedia.org/wiki/Lunar_distance_(navigation)

    In celestial navigation, lunar distance, also called a lunar, is the angular distance between the Moon and another celestial body. The lunar distances method uses this angle and a nautical almanac to calculate Greenwich time if so desired, or by extension any other time. That calculated time can be used in solving a spherical triangle.

  8. Longitude by chronometer - Wikipedia

    en.wikipedia.org/wiki/Longitude_by_chronometer

    Time sight is a general method for determining longitude by celestial observations using a chronometer; these observations are reduced by solving the navigational triangle for meridian angle and require known values for altitude, latitude, and declination; the meridian angle is converted to local hour angle and compared with Greenwich hour angle.

  9. Glossary of nautical terms (A–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_nautical_terms...

    Celestial navigation was the primary method of navigation until the development of electronic global positioning systems such as LORAN and GPS. ceiling Planking attached to the inside of the frames or floors of a wooden hull. It serves to separate the cargo from the hull planking itself, but also has a structural role, contributing to the ...