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| | Jupiter, moons |
 | | The Galilean moons, Io, Europa, Ganymede, and Callisto, have orbital radii of 400,000-2,000,000 km and are among the largest satellites in the Solar System. |
| | It is thought that the three groups of smaller moons may each have a common origin, perhaps as a larger moon or captured body that broke up into the existing moons of each group. |
| | All Jupiter' s moons are tidally locked with the planet so that their rotational periods and orbital periods are the same. |
| www.daviddarling.info /encyclopedia/J/Jupitermoons.html (338 words) |
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