Kepler proposed three laws to describe the motion of planets around the Sun.
1. Law of orbits : All the planets revolve around the sun in an elliptical orbits with Sun at one of its focii of the ellipse.
2.Law of areas : The line joining a planet to the Sun covers equal distances in equal intervals of time.
From this law we can say that when the planets are nearer to the Sun they move faster and when the planets are far away from the Sun they move slower.
3.Law of periods : The square of the time period of revolution of a planet around the Sun is directly proportional to the cube of the semi major axis of the elliptical orbit.
Let 'T' be the time period of revolution of planet.
'a' be the length of semi major axis.
then the relation is given by ---> T2 α a3
(T2 is direclty proportional to a3)
1. Law of orbits : All the planets revolve around the sun in an elliptical orbits with Sun at one of its focii of the ellipse.
2.Law of areas : The line joining a planet to the Sun covers equal distances in equal intervals of time.
From this law we can say that when the planets are nearer to the Sun they move faster and when the planets are far away from the Sun they move slower.
3.Law of periods : The square of the time period of revolution of a planet around the Sun is directly proportional to the cube of the semi major axis of the elliptical orbit.
Let 'T' be the time period of revolution of planet.
'a' be the length of semi major axis.
then the relation is given by ---> T2 α a3
(T2 is direclty proportional to a3)
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