Jupiter

The fifth planet from the Sun and the largest planet in our Solar System. Jupiter orbits the Sun at an average distance of 5.2 A.U.. The planet has a mass 318 times the mass of the Earth and a radius 11.2 times the radius of the Earth. Jupiter is a gas planet and has no solid surface. It is made of molecular hydrogen and helium, with trace amounts of ammonia, water vapor, and methane. The most recognizable features of the planet are its red and white bands of clouds and a giant storm visible from Earth called the Great Red Spot. Jupiter has 16 moons, the largest of which are Io, Europa, Ganymede, and Callisto.