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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 ...
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 ...
45.1°N 83.85°W. / 45.1; -83.85. image. Great-Lakes.svg. Module:Location map/data/Great Lakes is a location map definition used to overlay markers and labels on an equirectangular projection map of Great Lakes. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
v. t. e. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [ 1] It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others.
Longitude at left edge of map, in decimal degrees; right = 120 Longitude at right edge of map, in decimal degrees; Precision. Longitude: from West to East this map definition covers 12 degrees. At an image width of 200 pixels, that is 0.06 degrees per pixel. At an image width of 1000 pixels, that is 0.012 degrees per pixel. Latitude: from North ...
The default map image, without "Image:" or "File:" image1 = USA Louisiana relief location map.svg 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 ...
Location map of USA Midwest. / 42.825; -92.25. Module:Location map/data/USA Midwest is a location map definition used to overlay markers and labels on an equirectangular projection map of USA Midwest. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
The selenographic coordinate system is used to refer to locations on the surface of Earth 's moon. Any position on the lunar surface can be referenced by specifying two numerical values, which are comparable to the latitude and longitude of Earth. The longitude gives the position east or west of the Moon's prime meridian, which is the line ...