Universe Guide

Perdita, Moon of Uranus

Perdita is a Moon that orbits round the planet Uranus. It is also know by other designations, XXV, S/1986 U10.

Perdita was discovered on 18 May 1999 (verified in Voyager 2 images dating back to January 18, 1986) by Erich Karkoschka / Voyager 2.

The orbital period, i.e. the period it takes to complete an orbit round Uranus is 0.638 days. The figure is also known as the sidereel period. The figure comes from N.A.S.A..

The Equatorial Radius of the object is 15km. The value is the radius in km of the said object at the Equator.

The Semi-Major Axis of the orbit is 76.42, which is the furthest point from the centre to the edge of an elliptical point.

The Mean orbit velocity, that is the speed at which it orbits is 31356.20 km/h. The is the average distance in km of the object is from its parent 76417.00.

The orbital inclination, the angle at which Perdita orbits in relation to the orbital plane is 0.47 degrees. The orbital eccentricity is 0.0116, it is the degree at which Perdita orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Perdita Facts

DesignationsXXV, S/1986 U10
Orbital DirectionPrograde, same as the parents direction
Date of Discovery18 May 1999 (verified in Voyager 2 images dating back to January 18, 1986)
DiscovererErich Karkoschka / Voyager 2
Orbital Period (days)0.638
Equatorial Radius (km)15
Semi-Major Axis (10^3 km)76.42
Mean Orbit Velocity (km/h)31356.20
Average Orbit Distance (km)76417.00
Orbital Inclination (degrees)0.47
Orbital Eccentricity0.0116

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