F = G (m1*m2)/r2


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*m2)/kg2 (Newtons)*(meters squared) over (kilograms squared).

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