The fact that the planets move around the Sun not in circles but in ellipses was first demonstrated ...........

Geography (CDS) Space

Download Solution PDF

The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

Galileo

Martin Luther

Johannes Kepler

Copernicus

छोटे Courses बड़े Results

Master Space

Prepare through Micro-courses

Try Now

Explanation:

Kepler’s laws of planetary motion state that (a) All planets move in elliptical orbits with the Sun at one of the focal points (b) The radius vector drawn from the sun to a planet sweeps out equal areas in equal time intervals. This follows from the fact that the force of gravitation on the planet is central and hence angular momentum is conserved. (c) The square of the orbital period of a planet is proportional to the cube of the semi major axis of the elliptical orbit of the planet.