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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. History of longitude - Wikipedia

    en.wikipedia.org/wiki/History_of_longitude

    The history of longitude describes the centuries-long effort by astronomers, cartographers and navigators to discover a means of determining the longitude of any given place on Earth. The measurement of longitude is important to both cartography and navigation. In particular, for safe ocean navigation, knowledge of both latitude and longitude ...

  4. Module:Location map/data/Hong Kong MTR - Wikipedia

    en.wikipedia.org/wiki/Module:Location_map/data/...

    Location map of MTR. / 22.389176120352; 114.08958696873. Module:Location map/data/Hong Kong MTR is a location map definition used to overlay markers and labels on an equirectangular projection map of MTR. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.

  5. Graticule (cartography) - Wikipedia

    en.wikipedia.org/wiki/Graticule_(cartography)

    Graticule (cartography) Map of Europe with a 30° graticule in dark gray. A graticule (from Latin crāticula 'grill/grating'), on a map, is a graphical depiction of a coordinate system as a grid of lines, each line representing a constant coordinate value. [1] It is thus a form of isoline, and is commonly found on maps of many kinds, at scales ...

  6. Module:Location map/data/USA Florida - Wikipedia

    en.wikipedia.org/wiki/Module:Location_map/data/...

    The default map image, without "Image:" or "File:" image1 = USA Florida relief location map.jpg An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 31.2 Latitude at top edge of map, in decimal degrees; bottom = 24.3 Latitude at bottom edge of map, in decimal degrees; left ...

  7. Module:Location map/data/Indonesia Jakarta - Wikipedia

    en.wikipedia.org/wiki/Module:Location_map/data/...

    Module:Location map/data/Indonesia Jakarta is a location map definition used to overlay markers and labels on an equirectangular projection map of Jakarta. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.

  8. Module:Location map/data/United States Boston - Wikipedia

    en.wikipedia.org/wiki/Module:Location_map/data/...

    Module:Location map/data/United States Boston is a location map definition used to overlay markers and labels on an equirectangular projection map of Boston. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.

  9. Module:Location map/data/West Bengal - Wikipedia

    en.wikipedia.org/wiki/Module:Location_map/data/...

    The default map image, without "Image:" or "File:" image1 = West Bengal relief map.svg An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 27.4 Latitude at top edge of map, in decimal degrees; bottom = 21.3 Latitude at bottom edge of map, in decimal degrees; left = 85.6