What is the largest planet 3

Profile: Jupiter - the largest planet in the solar system

Almost the entire planet is made up of Gases. Around 75 percent of Jupiter's mass is accounted for by hydrogen and 24 percent by the noble gas helium. The small remainder is made up of heavier elements or compounds such as methane and ammonia. As a result of the high pressure, the hydrogen goes into you with increasing depth liquid state above. In the core area, with more than 300 million earth atmospheres, the pressure is so high that the hydrogen becomes electrically conductive, i.e. it metallic character gets. The Temperature of the core could be around 20,000 Kelvin. The Upper atmosphere temperature on the other hand is only 165 Kelvin (-108 degrees Celsius).

The moons of Jupiter - almost planets

The four large satellites of Jupiter, called Galilean moons after their discoverer, the Italian astronomer Galileo Galilei, can also be seen in a small telescope or even in binoculars. He spotted them as early as 1610 in what is now a tiny and blurred telescope. They were named after the love affairs of the Father of Gods and are called Io, Europa, Ganymede and Callisto from the inside out. Three of them are bigger than the Earth's moon, only Europe is a little smaller. All four satellites have very different surfaces and are not similar to each other. The four Galilean moons are only the most prominent companions of the giant planet, because as befits a king, he has an impressive retinue of 65 other, but comparatively tiny, moons. The four Galilean moons, orbiting the sun on their own orbits, would probably be counted as planets.

Io - the seething volcanic moon