The Planet Jupiter Weather. Current Hazards. Local Radar. Rivers and Lakes. Climate and Past Weather. Weather Story. Weather Map. Follow us on Twitter. Follow us on Facebook. Follow us on YouTube. Disclaimer Information Quality Help Glossary. Average distance from Sun. Sidereal Rotation. Length of Day. Sidereal Revolution. Diameter at Equator. Tilt of axis. Discovery Date. Of the nine planets in our solar system, Jupiter is the largest and is part of a group known as the gas giants.
It is the fifth planet from the Sun, with an orbit of around million miles, which it covers in just under 12 Earth years. A day on Jupiter would last approximately 10 Earth hours long.
As it is one of the brightest bodies in the night sky, Jupiter was discovered by the ancients, and, as of time of publication, 50 moons have been discovered orbiting the planet. The diameter of Jupiter is 10 times larger than that of Earth, and it has times Earth's mass. The mass of Jupiter is actually more than twice the total mass of all the other planets in the solar system, but it still has just one-thousandth of the mass of the Sun. However, because the planet is made of gases, it is only a little more dense than water.
The composition and internal structure of Jupiter is completely different from Earth's. Jupiter is in fact more similar to the Sun in that it is composed primarily of hydrogen and helium; in fact, Jupiter would have become a star had it been 80 times more massive.
Where Jupiter is similar to the Earth is in the very center of the planet, called the core. More than 40, subscribers can't be wrong. One possible explanation is that early Jupiter was stirred up by the impact with another huge proto-planetary body. Another explanation would be that Jupiter changed orbit and added more planetesimals early in its history.
Tibi is a science journalist and co-founder of ZME Science. He writes mainly about emerging tech, physics, climate, and space. When scientists call Jupiter a gas giant, they aren't exaggerating.
If you parachuted into Jupiter in hopes of hitting the ground, you would never find firm landing. The atmosphere of Jupiter is 90 percent hydrogen. The remaining 10 percent is almost completely made up of helium, though there are small traces of other gases inside. These gases pile on top of one another, forming layers that extend downward. Because there is no solid ground, the surface of Jupiter is defined as the point where the atmospheric pressure is equal to that of Earth.
At this point, the pull of gravity is almost two and a half times stronger than it is on our planet.
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