kepler's second law

Noun
  1. 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 (synset 105888463)
    "Kepler's second law means that a planet's orbital speed changes with its distance from the sun"
    is a type of: kepler's law, kepler's law of planetary motion - (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler
    same as: law of areas, law of equal areas

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