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Nereid, Moon of Neptune

Nereid is a Moon that orbits round the planet Neptune. Its mass is estimated/calculated at being 30,872,569,721,802,200,000 kg. Its density has been calculated at being 1.5. Its volume is 20579526.

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 360.13619 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 170km. The value is the radius in km of the said object at the Equator.

The Escape Velocity of the object is 560 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 5513.4, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Nereid is 1068.1 km. The surface area of Nereid is 363,168.11. The surface gravity of the said item is 0.071. The Mean orbit velocity, that is the speed at which it orbits is 3363.00 km/h. The is the average distance in km of the object is from its parent 5513818.00.

The orbital inclination, the angle at which Nereid orbits in relation to the orbital plane is 7.23 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


TypeMoon
Mass (kg)30,872,569,721,802,200,000
Density (g/cm^3)1.5
Volume (km^3)20579526
Orbital DirectionPrograde, same as the parents direction
Year of Discovery1949
DiscovererG. Kuiper
Orbital Period (days)360.13619
Equatorial Radius (km)170
Escape Velocity (km/h)560
Semi-Major Axis (10^3 km)5513.4
Equatorial Circumference (km)1068.1
Surface Area (km^2)363,168.11
Surface Gravity (m/s^2)0.071
Mean Orbit Velocity (km/h)3363.00
Average Orbit Distance (km)5513818.00
Orbital Inclination (degrees)7.23
Orbital Eccentricity0.7507
Source(s)https://solarsystem.nasa.gov/moons/neptune-moons/nereid/in-depth/
https://nssdc.gsfc.nasa.gov/planetary/factsheet/neptuniansatfact.html


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