Physics In Flux. (Physics Blog)

  In previous blogs, I discussed Kepler's first  and second laws of planetary motion. In this blog, I will be discussing Kepler's third law of planetary motion. Statement:  "The ratio of the square of the orbital period of objects to the cube of the semi-major axis is the same for all objects orbiting the same prime celestial body. Kepler's 3rd Law of Planatery Motion T 1 2 /R 1 3 = T 2 2 /R 2 3 = T 3 2 /R 3 3    or vice versa R 1 3 /T 1 2 = R 2 3 /T 2 2 = R 3 3 /T 3 2  Different Elements of Ellipse For example, if you take the sun as being a prime celestial body orbited by objects that are planets like Mercury, Venus, Earth, and Mars. Planets Average distance from the Sun during a complete revolution (In Astronomical Unit ) Time Taken for a complete revolution (In Earth days) Mercury 0.387 87.969 Venus 0.723 244.700 Earth 1 365.256...