Solar system objects

The following is a list of objects by orbit, ordered by increasing distance from the Sun. Most named objects in this list have a diameter of 500 km or more. • The , a • The and the . Astronomers sometimes divide the Solar System structure into separate regions. The includes Mercury, Venus, Earth, Mars, and the bodies in the . The includes Jupiter, Saturn, Uranus, Neptune, and the bodies in the . Since the discovery of the Kuiper belt, the outermost parts of the Solar System are considered a distinct r.