| Proper Name | Galatea | | Designation | Neptune VI | | Primary Planet | Neptune | | Family / Class | Regular moons | | Orbital Period | 10 hours, 17 minutes | | Distance from Neptune | Semi-Major Axis: 61,900 km
Periapsis: 61,900 km
Apoapsis: 61,900 km
(near circular orbit)
| | Eccentricity | 0.0001 | | Rotation Period | 10 hours, 17 minutes (synchronous orbit) | | Mean Diameter | 174 km
108 miles | | Notes | Galatea is a 'rubble pile' moon, a loose mass of material held together by gravitational forces. It pursues a close orbit of Neptune, just within the Adams Ring, the faint outer ring of Neptune. Indeed, Galatea appears to act as a shepherd moon for this ring, helping to define and maintain its structure. |
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