| Proper Name | Laomedeia | | Designation | Neptune XII | | Primary Planet | Neptune | | Orbital Period | 8 years, 249 days | | Distance from Neptune | Semi-Major Axis: 23,567,000 km (0.16 AU)
Periapsis: 14,213,000 km (0.09 AU)
Apoapsis: 32,921,000 km (0.22 AU) | | Eccentricity | 0.3969 | | Rotation Period | Not known | | Mean Diameter | 42 km
26 miles | | Notes | A small outer moon of Neptune, Laomedeia's orbit is highly inclined, angled at some 50° to Neptune's plane of rotation. It is one of the outermost of Neptune's moons, with only distant Psamathe and Neso lying beyond, each more than twice Laomedeia's distance from Neptune. |
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