Kepler's Laws of Planetary Motion

In astronomy, Kepler's laws of planetary motion are three scientific laws describing orbital motion, each giving a description of the motion of planets around the Sun.

Kepler's laws are:

  1. The orbit of every planet is an ellipse with the Sun at one of the two foci.
  2. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.
  3. The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.

Read more about Kepler's Laws Of Planetary Motion:  History, First Law, Second Law, Third Law, Generality, Zero Eccentricity, Relation To Newton's Laws, Computing Position As A Function of Time, Computing The Planetary Acceleration, Newton's Law of Gravitation

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