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When time at the prime meridian (or another starting point) is accurately known, celestial navigation can determine longitude, and the more accurately latitude and time are known, the more accurate the longitude determination. The angular speed of the Earth is latitude-dependent. At the poles, or latitude 90°, the rotation velocity of the ...
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.
Book I is a treatise on cartography and chorography, describing the methods used to assemble and arrange Ptolemy's data. From Book II through the beginning of Book VII, a gazetteer provides longitude and latitude values for the world known to the ancient Romans (the "ecumene"). The rest of Book VII provides details on three projections to be ...
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]
Stereographic map projection. Stereographic projection of the world north of 30°S. 15° graticule. The stereographic projection with Tissot's indicatrix of deformation. The stereographic projection, also known as the planisphere projection or the azimuthal conformal projection, is a conformal map projection whose use dates back to antiquity.
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.
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.
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 ...