Basic Facts About Jupiter
Jupiter is the fifth planet from the Sun and the largest in our solar system. It is a gas giant composed mostly of hydrogen and helium. Its mass is more than twice that of all other planets combined.
Jupiter's Size and Orbit
Jupiter has a diameter of about 139,820 kilometers, making it roughly 11 times wider than Earth. It orbits the Sun at an average distance of about 778 million kilometers. A year on Jupiter equals roughly 11.86 Earth years.
Notable Features and Moons
The planet is known for its Great Red Spot, a giant storm larger than Earth that has persisted for centuries. Jupiter has at least 95 known moons, including the four large Galilean moons: Io, Europa, Ganymede, and Callisto. Learn more about Jupiter from NASA.
