| 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° | ||||||
| Is a satellite of | Uranus | ||||||
| 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 | ||||||
| Surface temp |
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| Atmospheric pressure | 0 kPa | ||||||
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.