Standard Gravitational Parameter - Two bodies orbiting each other
In celestial mechanics, the standard gravitational parameter μ of a celestial body is the product of the gravitational constant G and the mass M of the body.
In the case of two bodies orbiting each other the mass M is the sum of the masses of the two bodies.
For several objects in the solar system, the value of μ is known to greater accuracy than either G or M.
|μ||standard gravitational parameter (m3/s2)|
|G||Newtonian constant of gravitation|
|m1||mass of 1st body (kg)|
|m2||mass of 2nd body (kg)|