This figure shows a plan view for the orbits of the regular satellites of Jupiter. They have small circular orbits and low inclinations. These objects probably formed in an early circumjovian disk of gas and dust around Jupiter during Jupiter's formation. Some of the Galilean satellites are larger than the planets of Mercury and Pluto. When Galileo discovered these four giant satellites orbiting Jupiter in 1610 he determined that the Earth was not the center of the Universe. The four smaller inner satellites have such weak gravity that they preferentially lose material from the bombardment of micro meteoriods which are near Jupiter. This creates the dust rings observed around Jupiter.
-Black Dot is Jupiter's location. -Purple dotted lines are the orbits of the giant Galilean satellites. -Green dashed lines are the orbits of the small inner satellites.
More information about Jupiter and its regular satellites can be found at
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