Universe Guide

Cressida, Moon of Uranus

Cressida is a Moon that orbits round the planet Uranus. It is also know by other designations, UIX, S/1986 U3. Its mass is estimated/calculated at being 343,195,071,179,257,000 kg. Its density has been calculated at being 1.3. Its volume is 264081.

Cressida was discovered on 9 January 1986 by Voyager 2.

The orbital period, i.e. the period it takes to complete an orbit round Uranus is 0.46357 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 40km. The value is the radius in km of the said object at the Equator.

The Escape Velocity of the object is 122 km/h. The Escape Velocity is the speed an object needs to be travelling in order to break free from the objects gravity. The larger an object is, the more velocity (speed) is needed to break free from the object.The Semi-Major Axis of the orbit is 61.8, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Cressida is 250.1 km. The surface area of Cressida is 19,905.63. The surface gravity of the said item is 0.014. The Mean orbit velocity, that is the speed at which it orbits is 34869.00 km/h. The is the average distance in km of the object is from its parent 61800.00.

The orbital inclination, the angle at which Cressida orbits in relation to the orbital plane is 0.01 degrees. The orbital eccentricity is 0.0004, it is the degree at which Cressida orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Cressida Facts

DesignationsUIX, S/1986 U3
Mass (kg)343,195,071,179,257,000
Density (g/cm^3)1.3
Volume (km^3)264081
Orbital DirectionPrograde, same as the parents direction
Date of Discovery9 January 1986
DiscovererVoyager 2
Orbital Period (days)0.46357
Equatorial Radius (km)40
Escape Velocity (km/h)122
Semi-Major Axis (10^3 km)61.8
Equatorial Circumference (km)250.1
Surface Area (km^2)19,905.63
Surface Gravity (m/s^2)0.014
Mean Orbit Velocity (km/h)34869.00
Average Orbit Distance (km)61800.00
Orbital Inclination (degrees)0.01
Orbital Eccentricity0.0004

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