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.
|standard gravitational parameter (m3/s2)
|Newtonian constant of gravitation
|mass of 1st body (kg)
|mass of 2nd body (kg)