All About Jupiter

All About Jupiter


Jupiter is the largest planet in our Solar System. It is so big that all of the other planets could fit inside it .

Jupiter is the fifth planet from the Sun.

Jupiter has very bright red and yellow clouds drifting around in it’s atmosphere, making it one of the most colorful objects in space.

Jupiter is the fourth brightest object in the sky, visible to the naked eye.

Jupiter has as many as 79, possibly more Moons.

Scientists believe Jupiter protects the Earth from asteroids – it absorbs them before they reach us.

Jupiter belongs to a group called the gas giants. This is a family of planets that also includes, Saturn, Uranus and Neptune. They are very different to Earth’s rocky surface. The gas giants all have a hard center, but their top layers are composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core.

One of Jupiter’s striking features is an enormous red spot among it’s clouds. This is actually a dramatic storm, similar to an enormous hurricane, which has been rumbling on for more than 300 years. This enormous red spot is three times wider than planet Earth.

A day on Jupiter is just under ten hours long.

Jupiter is named after the king of the Gods in Roman mythology.

More than 1,300 Earths would fit inside Jupiter.

Four of Jupiter’s Moons are the size of planets.

The average temperature on Jupiter is a chilly -234 Fahrenheit.

Jupiter has an diameter of about 143,000 km (88,900 miles).

Jupiter orbits the Sun at a distance of about 778 million km (483 million miles).

Jupiter is so far away from the Sun that it takes 11.86 Earth years to make one trip around the Sun. This is quite long in comparison to it’s short days.

When viewed from Earth, Jupiter appears to move very slowly. It’s no wonder it takes nearly 12 Earth years to make one trip around the Sun.

One day on Jupiter is 9 hours and 55 minutes, meaning it rotates on it’s axis very quickly.

Jupiter has the shortest day of the eight planets.

The Galileo spacecraft arrived at Jupiter in 1995. While the main craft circled the planet, a small probe was dropped down into Jupiter’s atmosphere. With a parachute to slow it down the probe studied the atmosphere and used radio signals to send information back to the Galileo craft.

Jupiter’s four large Moons are called – Ganymede, Callisto, Io and Europa.

Europa – Jupiter’s fourth largest moon’s surface is completely covered in smooth ice. Information sent back from the Galileo spacecraft, have shown that there could be a layer of water under the ice to which some scientists believe might be home to some kind of life – beneath the icy crust.

Jupiter’s Moon, Ganymede, is the largest moon in the Solar System. It is even bigger than Mercury, but due to the fact it does not orbit the Sun by itself, it cannot be called a planet.

Ganymede is made of a mixture of rock and ice.

Io, one of Jupiter’s biggest Moons, has bright yellow and orange splotches on it’s surface, which makes it look like a giant pizza.

Jupiter has gas in it’s atmosphere called methane. If the methane is struck by lightening, which is not uncommon on Jupiter, it will create a powder of carbon. As it falls, the carbon gets squeezed by the enormous pressure and if you compress carbon enough it makes diamonds.

Scientists believe that on Jupiter, it rains diamonds.

The first to record the sighting of Jupiter was in around the 7th or 8th century by the ancient Babylonians.