Astronomy Answers: From the Astronomical Dictionary

Astronomy Answers
From the Astronomical Dictionary


[Astronomy Answers] [Dictionary] [AnswerBook] [Universe Family Tree] [Science] [Starry Sky] [Planet Positions] [Calculate] [Colophon]

The description of the word you requested from the astronomical dictionary is given below.

planetocentric

planètès astèr = [Greek] wandering star; kentrum = [Greek] middle, center

Planetocentric means: with a planet at the center, or relative to the center of a planet. Planetocentric coordinate systems have the center of the planet for origin, and are almost always rectangular coordinate systems, but vary in the directions of the coordinate axes. Oft-used planetocentric coordinate systems are the planetocentric equatorial coordinate system and the planetocentric ecliptic coordinate system.