Compare planets, dwarf planets, and a comet, with this chart adapted from NASA data. The chart displays basic data for Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Ceres, Pluto, Eris, and Comet Halley. The featured information includes the object’s average distance from the Sun, perihelion, aphelion, mean equatorial radius, mass, rotation period, orbital period, axial tilt, minimum and maximum surface temperature, atmosphere, and number of known moons.