Universe Guide

Epimetheus, Moon of Saturn

Epimetheus is a Moon that orbits round the planet Saturn. It is also know by other designations, SXI, S/1980 S3. Its mass is estimated/calculated at being 526,032,620,017,115,000 kg. Its density has been calculated at being 0.64. Its volume is 821518.

Epimetheus was discovered on 1966/1978 by R. Walker, J. Fountain, S. Larson.

The orbital period, i.e. the period it takes to complete an orbit round Saturn is 0.6942 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 58km. The value is the radius in km of the said object at the Equator.

The Escape Velocity of the object is 125 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 151.422, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Epimetheus is 365.1 km. The surface area of Epimetheus is 42,419.17. The surface gravity of the said item is 0.010. The Mean orbit velocity, that is the speed at which it orbits is 57115.40 km/h. The is the average distance in km of the object is from its parent 151410.00.

The orbital inclination, the angle at which Epimetheus orbits in relation to the orbital plane is 0.34 degrees. The orbital eccentricity is 0.0098, it is the degree at which Epimetheus orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Epimetheus Facts

DesignationsSXI, S/1980 S3
Mass (kg)526,032,620,017,115,000
Density (g/cm^3)0.64
Volume (km^3)821518
Orbital DirectionPrograde, same as the parents direction
Date of Discovery1966/1978
DiscovererR. Walker, J. Fountain, S. Larson
Orbital Period (days)0.6942
Equatorial Radius (km)58
Escape Velocity (km/h)125
Semi-Major Axis (10^3 km)151.422
Equatorial Circumference (km)365.1
Surface Area (km^2)42,419.17
Surface Gravity (m/s^2)0.010
Mean Orbit Velocity (km/h)57115.40
Average Orbit Distance (km)151410.00
Orbital Inclination (degrees)0.34
Orbital Eccentricity0.0098

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