Universe Guide

Laomedeia, Moon of Neptune

Laomedeia is a Moon that orbits round the planet Neptune. It is also know by other designations, NXII, S/2002 N3. Its mass is estimated/calculated at being 89,920,105,985,831,600 kg. Its density has been calculated at being 1.5. Its volume is 38792.

Laomedeia was discovered on 13 August 2002 by Matthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser, and Dan Milisavljevic.

The orbital period, i.e. the period it takes to complete an orbit round Neptune is 3167.9 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 21km. The Equatorial Radius is based on the assumption of the Albedo value. The value is the radius in km of the said object at the Equator.

The albedo of the object is 0.04. The Albedo is the amount of radiation that is reflected back into space by the object.

The Escape Velocity of the object is 86 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 23570, which is the furthest point from the centre to the edge of an elliptical point.

The equatorial circumference of Laomedeia is 131.9 km. The surface area of Laomedeia is 5,541.77. The surface gravity of the said item is 0.014. The Mean orbit velocity, that is the speed at which it orbits is 1866.50 km/h. The is the average distance in km of the object is from its parent 23567000.00.

The orbital inclination, the angle at which Laomedeia orbits in relation to the orbital plane is 34.7 degrees. The orbital eccentricity is 0.3969, it is the degree at which Laomedeia orbits close to a circular (0) orbit as opposed to an elliptical (1) orbit.

Voyager 2 Fly-by

Laomedeia is a small moon that orbits the planet of Neptune. It is so small that the Voyager 2 Space Probe missed it as it flew by because the moon is so small and distant from the planet. It has an orbit similar to Neptune compared to Halimede which orbits in the opposite direction to Neptune.

Laomedeia along with the other Neptunian moons would offer scientists a chance to look back at the early solar system. A voyage to Uranus is a long way off, New Scientist reports that a journey to the planet could start in the 2030s otherwise it'd be a long time before they would be able to get favourable planetary assist conditions.

Laomedeia Origins

Laomedeia along with similar moons, Sao and Halimede are believed to have been created from the remnants of a large moon that was destroyed during in collision between larger objects. The remnants were captured and have been in orbit ever since. NASA

Laomedeia Mythology

As Neptune is the Roman God of the Water, it was apt to name the moons after something to do with water. Like so many other moons of Neptune, it is named after a Nereid, a sea nymph. Laomedeia was "Leader of the Folk" Theoi

Laomedeia Facts

DesignationsNXII, S/2002 N3
Mass (kg)89,920,105,985,831,600
Density (g/cm^3)1.5
Volume (km^3)38792
Orbital DirectionPrograde, same as the parents direction
Date of Discovery13 August 2002
DiscovererMatthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser, and Dan Milisavljevic
Orbital Period (days)3167.9
Equatorial Radius (km)21
Escape Velocity (km/h)86
Semi-Major Axis (10^3 km)23570
Equatorial Circumference (km)131.9
Surface Area (km^2)5,541.77
Surface Gravity (m/s^2)0.014
Mean Orbit Velocity (km/h)1866.50
Average Orbit Distance (km)23567000.00
Orbital Inclination (degrees)34.7
Orbital Eccentricity0.3969

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