Saturday, September 15, 2012

Question 79: 15 September 2012 (Week 37)

Q3: What are the Kepler's Laws of Planetary Motion? 

1 comment:

Joheb said...

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.