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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 ...
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.
Module:Location map/data/USA Washington, D.C. is a location map definition used to overlay markers and labels on an equirectangular projection map of Washington, D.C.. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
Longitude by chronometer is a method, in navigation, of determining longitude using a marine chronometer, which was developed by John Harrison during the first half of the eighteenth century. It is an astronomical method of calculating the longitude at which a position line, drawn from a sight by sextant of any celestial body, crosses the ...
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.
Module:Location map/data/English Channel is a location map definition used to overlay markers and labels on an equirectangular projection map of English Channel. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 49.2 Latitude at top edge of map, in decimal degrees; bottom = 45.3 Latitude at bottom edge of map, in decimal degrees; left = -125 Longitude at left edge of map, in decimal degrees; right = -116.7 Longitude at right edge of ...
An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 40 Latitude at top edge of map, in decimal degrees; bottom = 37.6 Latitude at bottom edge of map, in decimal degrees; left = -79.7 Longitude at left edge of map, in decimal degrees; right = -74.8 Longitude at right edge of ...