What is the centripetal force on a planet orbiting the sun?

The centripetal force on a planet orbiting the Sun is the gravitational force exerted by the Sun that pulls the planet towards it, keeping the planet in its circular or elliptical orbit. This force is responsible for maintaining the planet's curved path as it moves through space. The gravitational attraction between the Sun and the planet provides the necessary centripetal force to counteract the planet's inertia, which would otherwise cause it to move in a straight line. The strength of this force depends on the masses of the Sun and the planet, as well as the distance between them, following Newton's law of universal gravitation.