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Nereid, Moon of Neptune

Nereid is a Moon that orbits round the planet Neptune. Its orbit circumference, the total distance it travels round its planetary parent is 29,067,053.44 km. The furthest it gets from its orbital parent (apoasis) is 9,653,041 km. Its mass is estimated/calculated at being 30,872,569,721,802,200,000 kg. Its density has been calculated at being 1.5 g/cm3. Its volume is 20,579,526 km3.

It was discovered in the year 1949 by G. Kuiper.

The orbital period, i.e. the period it takes to complete an orbit round Neptune is 360.13 days. The figure is also known as the sidereel period. The figure comes from N.A.S.A..

The Semi-Major Axis of the orbit is 5,513,818 km, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Nereid is 1,068.1 km. The mean radius, that is the average radius of Nereid is 170 km. The surface area of Nereid is 363,168.11 km2. The surface gravity of the said item is 0.071 m/s2. The average orbit velocity, that is the speed at which it orbits is 3,363.0 km/h.

The orbital inclination, the angle at which Nereid orbits in relation to the orbital plane is 7.09 degrees. The orbital eccentricity is 0.7507, it is the degree at which Nereid orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Nereid Facts

Orbital Circumference29,067,053.44 km
Furthest from parent (Apoasis)9,653,041 km
Mass30,872,569,721,802,200,000 kg
Density1.5 g/cm3
Volume20,579,526 km3
Year of Discovery1949
DiscovererG. Kuiper
Orbital Period360.13
Semi-Major Axis5,513,818 km
Equatorial Circumference1,068.1 km
Mean Radius170 km
Surface Area363,168.11 km2
Surface Gravity0.071 m/s2
Average Orbit Velocity3,363.0 km/h
Orbital Inclination7.09
Orbital Eccentricity0.7507

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