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Neptune Menu  

Laomedeia, a moon of Neptune

Sao
Laomedeia
Psamathe

Classification
Natural satellite of Neptune
Average distance from Neptune
23,570,000 km
14,645,691 miles
Diameter across equator
42 km
26 miles
Time to orbit Neptune
3168 days
Year of Discovery
2002
Origin of Name
One of the 50 Nereids of Greek mythology, kind and helpful sea nymphs who are the daughters of Nereus and Doris. Laomedeia is "leader of the folk"

Laomedeia is one of Neptune's fourteen moons. It has a diameter of 42 kilometres (26 miles). It orbits at an average distance of 23.6 million kilometres (14.6 million miles) from Neptune, taking 3,168 Earth days to complete a full journey around the planet. It is the twelfth most distant moon from Neptune.

Laomedeia is classed as an irregular prograde moon. An irregular moon usually refers to a moon that has been captured by a planet's gravity rather than one which formed around it. Laomedeia is also an irregular shape. A prograde moon is one that orbits in the same direction as its host planet's rotation. It's likely that Laomedeia was originally an asteroid or an object that formed in the Kuiper Belt.


Why is Laomedeia called Laomedeia?

In Greek mythology, Laomedeia is one of the Nereids, one of the 50 daughters of Nereus and Doris. The Nereids are kind and helpful sea nymphs. She is described as "leader of the folk", although it's not clear what folk she is leading!

The moon's name was announced on 3rd February 2007. Its provisional name was S/2002 N 3. It may also be referred to as Neptune XII.


Sao
Laomedeia
Psamathe
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