Jupiter is the biggest planet in our solar system. In fact, it is so big that all of the other 7 planets could fit inside of it. It is 143,000 kilometers wide. Jupiter is a type of planet called a gas giant and it is made up of mostly hydrogen and helium. The pressure of the atmosphere is so great, that there is an ocean of liquid metallic hydrogen underneath the atmosphere.
It is named after the Roman king of gods and is the second brighest planet in the sky, next to venus. Jupiter is about 2.4 times the gravity of earth. It is the fastest spinning planet. The days are only ten hours, but the years are a whole 12 earth years. Jupiter has a very powerful magnetic field, about 20 times stronger than earth’s. It has 67 known moons and rings made up of dust particles.
Sky Wonders 