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Jupiter is the Fifth planet from the Sun and the LARGESTin the SOLAR SYSTEM.
It is a Gas Giant
with a Mass more than 2.5 times that of all the other planets in the Solar System combined and slightly less than one-thousandth the Mass of the Sun.
Its diameter is eleven times that of Earth and a tenth that of the Sun. Jupiter orbits the Sun at a distance of 5.20 AU (778.5 Gm), with an Orbital Period of 11.86 years.
It is the third-brightest natural object in the Earth's night sky, after the Moon and Venus, and has been observed since prehistoric times.
Its name derives from that of Jupiter, the chief deity of
Ancient Roman Religion
Only the Sun, Moon and Venus are brighter. It is one of five planets visible to the naked eye from Earth.
It turns on its axis once every 9 hours and 55 minutes. The rapid rotation flattens the planet slightly, giving it an oblate shape.
From our point of view on Earth, it appears to move slowly in the sky, taking months to move from one constellation to another.
Pioneer 10 and 11, Voyager 1 and 2, Galileo, Cassini, Ulysses, and New Horizons missions. The Juno mission is its way to Jupiter and will arrive in July 2016. Other future missions may focus on the Jovian moons Europa, Ganymede, and Callisto, and their subsurface oceans.
It has raged for at least 350 years. It is so large that three Earths could fit inside it.