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Prospero

Uranus XVIII

Proper NameProspero
DesignationUranus XVIII
Primary PlanetUranus
Orbital Period5 years, 152 days
Distance from UranusSemi-Major Axis: 16,256,000 km
Periapsis: 9,025,000 km
Apoapsis: 23,487,000 km
Eccentricity0.4448
Rotation PeriodNot known
Mean Diameterc.50 km
NotesProspero, named for the magician at the centre of Shakespeare's The Tempest, is a small retrogade satellite of Uranus (that is, it follows its orbital path in the opposite direction to Uranus' rotation, suggesting that it was captured by the ice giant planet after it had formed).

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