Above, as opposed to inferior or below.

Any planet that lies farther from the Sun than the Earth: The superior planets are Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

The alignment of two celestial bodies when they lie or pass behind the sun: A superior planet conjunction takes place when planets, like Jupiter, have orbits larger or greater than the Earth's orbit, and are on the other side of the Sun from the Earth in which all objects are arranged in a straight line.