Jupiter Facts and Information


Jupiter is the largest planet in our solar system with a diameter of 139,822 km. Named after the King of gods it is the 5th planet from the sun and the first of the Gas Giants. Jupiter is made up mainly of gas (90% hydrogen & 10% helium) meaning it does not have a solid surface, under its atmosphere there is a liquid ocean of water and hydrogen. Jupiter has four sets of rings, the halo ring, the main ring, the Amalthea gossamer ring and the Thebe gossamer ring, these are also referred to as the Jovian ring system. These rings are made up of dust particles. Jupiter is known for its great red spot, this spot is a storm that has lasted for over 300 years. Jupiter has a huge magnetic field stronger than any other planet in our solar system. It also has 67 moons, over 50 of these are known moons with a further 17 awaiting confirmation of discovery. The four largest moons are Io, Europa, Ganymede and Callisto and are called the Galilean satellites.

Facts about Jupiter

  • Jupiter is big enough to hold 1300 Earths
  • Ganymede is the largest moon in the solar system
  • Jupiter rotates faster than any other planet in our solar system
  • After the sun, moon and Venus, Jupiter is the 4th brightest object in the sky
  • Jupiter was first visited in 1973 by Pioneer 10
  • One day on Jupiter is 10 hours long
  • The great red spot is so big you could fit 100 Earths in it
  • Jupiter sends out strong radio radiation that can be detected on earth
  • If you weigh 100 lbs on Earth you would weigh 265lbs on Jupiter
  • Jupiter is 778 million km from Earth

Jupiter Data

  • Diameter (Km) 142,984
  • Mass 1.898E27 kg
  • Density (Kg/m³) 1326
  • Temperature (°C) – 108
  • Distance from sun (Km) 817 million
  • Rotation period 9.9 hours
  • Length of Day  9.9 hours
  • Orbital period 4331 days
  • Number of moons 67
  • Magnetic field Yes
  • Ring system Yes