Universe Guide

Home / Facts

Despina, Moon of Neptune

Despina is a Moon that orbits round Neptune rather than the Sun which our Earth orbits round. The furthest it gets from its orbital parent (apoasis) is 52,537 km. Its mass is estimated/calculated at being 2,098,135,806,336,070,000 kg. Its density has been calculated at being 1.3 g/cm3. Its volume is 1.3 g/cm3. It was discovered in the year 1989 by S. Synnott, Voyager 2.

The Semi-Major Axis of the orbit is 52,526 km, which is the furthest point from the centre to the edge of an elliptical point.

The mass of the object is calculated at being 2,098,135,806,336,070,000 kg. The equatorial circumference of Despina is 471.2 km. The mean radius of Despina is 75.0 km. The surface area of Despina is 70,685.83 km2. The surface gravity of the said item is 0.025 m/s2. The average orbit velocity, that is the speed at which it orbits is 41,048.6 km/h.

The orbital inclination, the angle at which Despina orbits in relation to the orbital plane is 0.07 degrees. The orbital eccentricity is 0.000, it is the degree at which Despina orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Despina Facts


TypeMoon
Furthest from parent (Apoasis)52,537 km
Mass2,098,135,806,336,070,000 kg
Density1.3 g/cm3
Volume1,767,146 km3
Year of Discovery1989
DiscovererS. Synnott, Voyager 2
Semi-Major Axis52,526 km
Mass2,098,135,806,336,070,000 kg
Equatorial Circumference471.2 km
Mean Radius75.0 km
Surface Area70,685.83 km2
Surface Gravity0.025 m/s2
Average Orbit Velocity41,048.6 km/h
Orbital Inclination0.07
Orbital Eccentricity0.000

Add a Comment


Name:
Email: (Optional)
Comment: