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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 ...
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 ...
Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is a 1995 best-selling book by Dava Sobel about John Harrison, an 18th-century clockmaker who created the first clock ( chronometer) sufficiently accurate to be used to determine longitude at sea—an important development in navigation.
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.
They settled on five themes: location, place, relationships within places (later changed to human-environment interaction), relationships between places (later shortened to movement), and region. [4] The themes were not a "new geography" but rather a conceptual structure for organizing information about geography. [1]
An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 33.2 Latitude at top edge of map, in decimal degrees; bottom = 28.7 Latitude at bottom edge of map, in decimal degrees; left = -94.2 Longitude at left edge of map, in decimal degrees; right = -88.6 Longitude at right edge of ...
Location map of Kyushu. / 32.515; 130.55. Module:Location map/data/Japan Kyushu is a location map definition used to overlay markers and labels on an equirectangular projection map of Kyushu. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
Map of the Alps. Module:Location map/data/Alps is a location map definition used to overlay markers and labels on an equirectangular projection map of the Alps.The markers are placed by latitude and longitude coordinates on the default map or a similar map image.