Uranus’ Moon Ophelia

Uranus’ moon Ophelia — Ophelia is a moon of Uranus. It was named after the daughter of Polonius in William Shakespeare’s play Hamlet.

Ophelia acts as the outer shepherd satellite for Uranus’ epsilon planetary ring. Its orbit is within Uranus’ synchronous orbit radius, and is therefore slowy decaying due to tidal forces.

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Discovery

Discovered by Voyager 2
Discovered in 1986

Orbital characteristics

Mean radius 53,764 km
Eccentricity 0.0101
Orbital period 0.37641d
Inclination 0.09�

Physical characteristics

Equatorial diameter ~42 km
Surface area km2
Mass 5.4�1016 kg
Mean density 1.3 g/cm3
Surface gravity 0.0078m/s2
Rotation period ?
Axial tilt ?�
Albedo 0.07

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NASA

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