| / English Dictionary |
KEPLER'S LAW OF PLANETARY MOTION
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I. (noun)
Sense 1
Meaning:
(astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler
Synonyms:
Kepler's law; Kepler's law of planetary motion
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("Kepler's law of planetary motion" is a kind of...):
law; law of nature (a generalization that describes recurring facts or events in nature)
Domain category:
astronomy; uranology (the branch of physics that studies celestial bodies and the universe as a whole)
Hyponyms (each of the following is a kind of "Kepler's law of planetary motion"):
Kepler's first law (a law stating that the orbit of each planet is an ellipse with the sun at one focus of the ellipse)
Kepler's second law; law of areas; law of equal areas (a law concerning the speed at which planets travel; a line connecting a planet to the sun will sweep out equal areas in equal times)
harmonic law; Kepler's third law (a law stating that the ratio of the square of the revolutionary period (in years) to the cube of the orbital axis (in astronomical units) is the same for all planets)
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