Ophelia is the second moon in order of distance from Uranus. It is named after the daughter of Polonius in Shakespeare's play Hamlet and is also known as Uranus VII. Ophelia acts as the outer shepherd moon for Uranus's epsilon ring (see Uranus, rings). It was discovered on January 20, 1986 by the Voyager scientist Richard J. Terrile from images sent back by Voyager 2 and was given the temporary designation S/1986 U8.
|discovery||1986, by Voyager 2|
|orbit semi-major axis||53,790 km (33,430 miles)|
|diameter||54 × 38 km (34 × 24 miles)|
|orbital period||0.376 days (9 hr 1 min.)|
|axial period||synchronous (assumed)|
|visual albedo||0.07 (assumed)|