This is the largest planet in the solar system, with a diameter over 11 times that of Earth. It has a similar composition as the Sun: it's made mostly of gases like hydrogen and helium. It is 5 times farther away from the Sun than we are, and takes almost 12 years for Jupiter to orbit our Sun (Jupiter's year), but only 10 hours to make a complete rotation (Jupiter's day). It weighs about 2.5 times that of all the other planets combined, but it is not nearly massive enough to become a star like our Sun.