DIONE FEATURES A LARGER ROCKY CORE, accounting for approximately one third of the moon's mass, with the rest composed largely or water ice.
The moon's surface is heavily cratered though unusually, most of the craters are on the trailing face of the moon, suggesting that at some point in its history, a significant impact spun it 180 degrees, leaving it effectively facing 'backwards' as it orbits Saturn.
.Dione is the fourth-largest moon of Saturn, with a diameter of 698 miles (1,123 kilometres).
It is the 15th largest moon in the solar system.
Dione orbits around Saturn once every 2.7 Earth-days, at a distance of 234,000 miles (377,400 km), approximately the same distance from Earth to its moon.
The trailing hemisphere of the moon is also riddled with bright ice cliffs, the result of huge tectonic fractures.
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| Dione |
.Dione is the fourth-largest moon of Saturn, with a diameter of 698 miles (1,123 kilometres).
It is the 15th largest moon in the solar system.
Dione orbits around Saturn once every 2.7 Earth-days, at a distance of 234,000 miles (377,400 km), approximately the same distance from Earth to its moon.
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| Saturn's Moon |
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