Answer:
Kepler's third law
Step-by-step explanation:
As per Kepler's third law all planets revolve around the Sun in such a way that their square of time period of revolution around the Sun is proportional to the cube of the mean radius.
It is given as
here
c = proportionality constant
R = mean radius
T = time period around the sun
So here all celestial body and all planets revolve as per the Kepler's third law which is also known as law of harmonies