How do you calculate the period of rotation from the Earth to the Sun?
Do you mean period of rotation of earth around the sun? Well, we know for a start that it is about a year – 365 days – for the earth to go around the sun. Actually, 365.2564 mean solar days. The orbital period (in seconds) of a small body (like Earth) orbiting a central body (like the sun) in a circular or elliptical orbit is: T = 2*pi*a*(a/mu)^1/2 Where T is orbital period, in seconds a is distance from earth to sun (m), = 1.5*10^11m mu is the standard gravitational parameter, = 1.327*10^20 G is the gravitational constant, M the mass of the central body (kg) The standard gravitational parameter, mu, = G*M Is this what you are looking for?
