F = G (m1*m2)/r^{2}

Where:

**F** is the attractive gravitational force between two bodies.

**m1** and **m2** represent the masses of the two bodies.

**r** is the separation between the centers of mass of the two bodies.

**G** is Newton's gravitational constant, where **
G = 6.67x10**^{-11} (N*m^{2})/kg^{2}** (Newtons)*(meters squared) over (kilograms squared).**