Outwards from Neptune, the inner moons are
Naiad,
Thalassa,
Despina,
Galatea,
Larissa,
S/2004 N 1 and
Proteus. Next outward from Neptune,
Triton is one of four moons in the solar system known to have an atmosphere. The thin nitrogen haze is thought to have evaporated off of the frozen surface.
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