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Solar
Moon

Hyperion

Orbital elements

Semi-major axis
0.01 AU
Eccentricity
0.123
Orbital period
21.3 days
Epoch · J2000
J2000

Physical properties

Mean radius
135 km
Mass
5.62 × 10¹⁸ kg

Visual & observation

Geometric albedo
0.3

Discovery & classification

Discovered by
Bond, Bond, Lassell
Discovery date
16 September 1848

Sources