"change in location" "displacement"
If the objects are not tied together, and if the gravitational forces between them are negligible in their current environment, then the distance between them has no effect whatsoever on their motion.
Mass
When some objects get hot enough, they glow, given off a faint red light . If they get even hotter, the glow turns into white light. The objects are said to be white light
The strength of the gravitation force between two objects depends upon the distance between the two objects and their masses. F = (M1*M2*G)/R2 (Newton's Law of Gravitation) Here M1 and M2 are the masses of the two objects, G is the universal gravitational constant, and R is the distance between the two objects. If the masses of the two objects are large the attraction between them will also be large. However, as the radius increases the gravitational force between the two decreases by the square of the distance. So, the gravitational force depends mainly upon the distance between the two objects, but also significantly upon the masses of the two objects.