An Earth ellipsoid or Earth spheroid is a mathematical figure approximating the Earth's shape and size, used as part of a reference frame for coordinates and computations in geodesy, astronomy, and the geosciences. Various different reference ellipsoids have been used as approximations.
An Earth ellipsoid or Earth spheroid is a mathematical figure approximating the Earth's shape and size, used as part of a reference frame for coordinates and computations in geodesy, astronomy, and the geosciences. Various different reference ellipsoids have been used as approximations.
Source: Wikipedia "Earth ellipsoid" · CC BY-SA 4.0
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