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Solar
Moon

Rhea

Orbital elements

Semi-major axis
0.004 AU
Eccentricity
0.0013
Orbital period
4.5 days
Epoch · J2000
J2000

Physical properties

Mean radius
764 km
Mass
2.307 × 10²¹ kg
Density
1.236 g/cm³

Visual & observation

Geometric albedo
0.949

Discovery & classification

Discovered by
Giovanni Cassini
Discovery date
23 December 1672

Sources