| Proper Name | Perdita | | Designation | Uranus XXV | | Primary Planet | Uranus | | Orbital Period | 15 hours, 18 minutes | | Distance from Uranus | Semi-Major Axis: 76,400 km
Periapsis: 76,308
Apoapsis: 76,492 | | Eccentricity | 0.0012 | | Rotation Period | 15 hours, 18 minutes (synchronous orbit) | | Mean Diameter | 30 km
19 miles | | Notes | This small moon lies among the closest-orbiting of Uranus' satellites. It lies on the outer fringes of the Portia Group, a collection of Uranian moons named for Portia, their largest member, that orbit the planet at distances between about 60,000 km and 75,000 km. |
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