Question

What is Kepler's laws of planetary motion?​

Answer 1

Kepler's laws of planetary

motion :

• law of orbit - Every planet moves in an elliptical orbit around the sun, with the sun being at one of the focii

• law of areas - The radius vector drawn from the sun to the planet sweeps out equal areas in equal intervals of time i.e., the areal velocity of a planet is constant

• law of periods or Harmonic law - The square of the period of revolution (T) of a planet around the sun is proportional to the cube of the semi-major axis r of the ellipse .

T² ∝ r³

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