Starting from the surface of a spherical planet, the gravitational potential at a point a distance - r - from the centre of mass of the planet is given by
V = -GM / r
where M is the mass of the planet.This means that the gravitational potential at a point is inversely proportional to the distance from the centre of mass of the planet of radius R.
where M is the mass of the planet.This means that the gravitational potential at a point is inversely proportional to the distance from the centre of mass of the planet of radius R.