Planet Jupiter Facts

Jupiter is Huge 

Jupiter is 11 Earths wide and 318 Earths mass. If that wasn’t crazy enough for you Jupiter is 2.5 times bigger than every planet in the solar system. But the shocking thing is that Jupiter is shrinking. Let me elaborate, Jupiter’s atmosphere is so warm that gas molecules are moving fast enough to escape the gravitational pull of the planet.

Jupiter’s solar wind ionizes atoms in the atmosphere. This causes atoms to become neutrally charged. When atoms are neutrally charged then can escape Jupiter’s magnetic field. 

This slow process is preventing Jupiter from growing in mass. Although, Jupiter can grow in mass if some celestial object collides with Jupiter. This occurred in 1994 when a comet plunged into Jupiter providing an additional trillion mass. 

Why is Jupiter so Huge

Jupiter was the first planet of the Solar System. Due to Jupiter being the first planet it attracted and destroyed space debris that would have made other planets grow in size. Which may sound like a con for Earths. But Jupiter serves as a shield to Earth due to its strong gravitational pull and size.


The Great Red Spot 

The Great Red Spot is terrifying place on Jupiter that would result in nothing but, carnage. The Great Red Spot produces wind speeds up to 432 km/h (280 mph). The Great Red Spot is approximately 2.5 times stronger then stage 5 hurricanes. The storm at the red spot has persisted for at least 360 years. 

The Great Red Spot


What is Jupiter like

Jupiter is a Jovian planet. This is just a fancy way of saying a Gas planet. Anyways, Jupiter’s atmosphere is made up of mostly hydrogen gas and helium.  Jupiter’s atmosphere is about 44 miles thick.

The Babylonians discovered Jupiter

The Babylonians are named Jupiter after the King of Gods. Which is ironic because Jupiter was the first planet in the Solar System. This should be no surprise because the Babylonians were skilled mathematicians. Overall a intelligent people. 

Jupiter has the shortest day

The planet spins on its axis once every 9 hours and 55 minutes. Jupiter has the fastest rotational velocity in our solar system at a speed of 45,300 km/h. 

However, It takes 11.8 Earth years to complete on orbit around our star. 

My thought: Before writing this article I thought that Jupiter would have the slowest rotation due the mass & size. 

Jupiter has 67 moons

Jupiter is capable of having so many moons due to the planets mass and size. Jupiter has a large area of gravitational stability which supports many moons. 

Its possible that Jupiter has many moons because Jupiter has the stronger magnetic field of any planet on the solar system. Meaning, anything that passes Jupiter is either destroyed by gravitational tides or orbits the planet. 

Jupiter heats itself 

Jupiter has an average temperature of 234 degrees Fahrenheit. Here on Earth the temperatures change due to the tilt of the axis. But Jupiter’s heat is driven from the interior of the planet. Under the surface convection from the liquid and plasma hydrogen generate more heat than from the sun. Jupiter releases this heat via thermal radiation. 

Jupiter doesn’t receive much heat from the Sun because the planet is 484 miles away from the Sun. 

Jupiter Has a Ring 

Unlike Saturn, Jupiter has very thin rings. Jupiter's sings are composed of dust. 

For a long time astronomers never noticed the rings on Jupiter.

Until, the NASA Voyager spacecraft in 1979 send back pictures of the rings. Jupiter's rings are 92,000 kilometers above the clouds of Jupiter. Then goes as far as 225,000 km from the planet. Jupiter's rings are about 20,000 km wide


  • Jupiter is a Jovian planet
  • Jupiter has a red spot. On this spot, a storm has been occurring for at least 300 years.
  • The Babylonians discovered Jupiter 
  • Jupiter has the shortest day 
  • Jupiter heats itself 
  • Jupiter has 67 moons





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