Kepler's law

noun Kep·ler's law \ˈkeplə(r)z-\

Definition of Kepler's law

  1. 1 :  a statement in astronomy: the orbit of each planet is an ellipse that has the sun at one focus

  2. 2 :  a statement in astronomy: the radius vector from the sun to each planet generates equal orbital areas in equal times

  3. 3 :  a statement in astronomy: the ratio of the square of the revolution period to the cube of the orbital major axis is the same for all the planets

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Origin and Etymology of kepler's law

after Johannes Kepler


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