Meaning of KEPLER'S LAW OF PLANETARY MOTION

WordNet Dictionary
	Definition:		[n]  (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler
	Synonyms:		Kepler's law
	See Also:		harmonic law, Kepler's first law, Kepler's second law, Kepler's third law, law, law of areas, law of equal areas, law of nature