Jupiter

**JUPITER**
Jupiter is the fifth planet from the Sun. It is the largest planet in our solar system and is a Jovian. Jupiter is a gas giant along with Saturn, Uranus and Neptune. Jupiter's surface area is 6.21796 x 10,000,000,000 sq km (121.9 earths). Jupiter is the only planet that has a centre of mass. It's axial tilt is only 3.13 degrees. Jupiter has no significant seasonal changes. Jupiter is usually the fourth brightest object in the sky. At times Mars appears brighter.



Jupiter has no surface. It has a dense and rocky core. Jupiter is made of metallic hydrogen, helium, molecular hydrogen. Jupiter has the largest planetary atmosphere in the solar system, spanning over 5000km. It has a faint planetary ring system. It has 3 main segments. They are the inner torus, bright main ring and the outer gossamer ring. The rings are made of dust.



Jupiter has 63 named natural satellites (Jupiter's moons). 47 are less than 10km in diameter. The four largest are the Galilean Moons. They are lo, Europa, Ganymede and Callisto.



Galileo discovered Jupiter and three of its moons on January 7 1610. Six nights later, on January 13, he discovered the fourth moon. That is why four of the moons are called the Galilean Moons.



[|Wikipedia- Jupiter] [|History of the universe] [|Jupiter Picture] [|Jupiters Moons Picture] [|Jupiters Inside Picture] [|Galileo Picture]
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