Geocentric

Chambers's Encyclopaedia, Volume 5: Friday to Humanitarians, p. 138

Geocentric means having the earth for centre. Thus, the moon's motions are geocentric; also, though no other of the heavenly bodies revolves round the earth, their motions are spoken of as geocentric when referred to, or considered as they appear from, the earth. The geocentric latitude of a planet is the inclination to the plane of the ecliptic of a line connecting it and the earth; the geocentric longitude being the distance measured on the ecliptic from the first point of Aries to the point in the ecliptic to which the planet as seen from the earth is referred.

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