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Moon of Saturn

Dione

Mean radius561.4 km
Orbit (semi-major axis)377,700 km
Orbital period2.737 days

Mean density 1.48 g/cm³ (JPL): a mix of ice and rock.

Radius and orbit from JPL Solar System Dynamics satellite tables.

Sources

  1. JPL Solar System Dynamics, Planetary Satellite Physical Parameters
  2. JPL Solar System Dynamics, Planetary Satellite Mean Elements
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