noun
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
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Kepler's second law means that a planet's orbital speed changes with its distance from the sun
• Syn: ↑Kepler's second law, ↑law of equal areas
• Hypernyms: ↑Kepler's law, ↑Kepler's law of planetary motion
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or law of equal areas : kepler's law 2
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Astron.
See under Kepler's laws.
Useful english dictionary. 2012.