In astronomy, the geocentric model (also known as geocentrism, often exemplified specifically by the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Figure of the heavenly bodies - An illustration of a non-Ptolemaic geocentric system by Portuguese cosmographer and cartographer Bartolomeu Velho, 1568 (Bibliothèque Nationale, Paris)
For the coordinate system, see Geocentric coordinates.
For orbits around Earth, see Geocentric orbit.
