| Mean Distance From Sun: 778,412,020   kilometers (483,682,810 miles).Orbital period around the Sun: 11.8565 Earth years (4330.6 Earth days)
 Distinguishing features: Much of the mystery surrounds Jupiter's interior. From the planet's mass,   density, and magnetic field, scientists surmise that it probably has a dense   core of rock and metal at least 10 times as massive as Earth. A thick layer of   hydrogen surrounds the core. Jupiter's gravity squeezes this layer so tightly   that it acts as a metal. The metallic hydrogen probably rotates at a different   speed from the core, so it produces a "dynamo" effect, generating electric   currents that create Jupiter's magnetic field.
 
 Zodiac Sign Rulership: Sagittarius  Old Rulerships: Sagittarius and Pisces
 
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