Jupiter

It's fitting that the largest planet in our solar system is named after Jupiter, the supreme king of all Roman gods. Jupiter is so big that 1,300 Earths could fit inside this planetary monster. Jupiter and its kingdom of 17 moons are often pounded by meteorites.

Diameter: 89,000 miles
Location: 5th planet from Sun Number of Moons: 17
Average Distance from Sun: 480 million miles
Cloud Top Temperature: -170 degrees F
Orbital Period: 12 years
Characteristics: one of four gaseous planets in solar system; atmosphere made of hydrogen and helium
Significance: largest planet in solar system

Image credits: courtesy of NASA.