Jupiter is the fifth planet from the Sun. 778,330,000 km. It’s diameter is 142,984 km and mass is 1.900e27 kg. The largest in our Solar System. Jupiter is the fourth brightest object in the sky behind the Sun, the Moon, and Venus. Jupiter is a gas planet, compiled of 90% hydrogen and 10% helium giving it shades of white, red, orange, brown, and yellow. It does have rings around the planet, but they are very difficult to see.