Jupiter was discovered by the ancient Chinese long ago. It was first observed in a telescope by Galileo. Jupiter is named after the ancient god Zeus. Jupiter is the fifth planet from the sun. Its average distance from the sun is 483.6 million miles. The equatorial diameter of Jupiter is 88,846 miles and the polar diameter is 83,082 miles. The length of one year on Jupiter is equal to 11.86 earth years. One day on Jupiter is equal to 9.841 earth hours. The surface temperature on Jupiter is usually around -238 degrees fahrenheit. In weight, Jupiter is 317.94 times larger than Earth. The density of Jupiter is 1.33 g/cm3. Jupiter has 16 known satellites, there are probably more out there yet to be discovered. Its biggest satellite, Ganymede, is larger than Mercury and Pluto. If Ganymede were to ever fall into a "Sun Orbit" it would most likely be considered a planet, mainly becuase of its size. I have more information on Jupiter. If you need it just E-mail me.
Jupiter Facts
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