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Despina


Despina is the third of Neptune's satellites.


Orbital Distance:   52,500 km (circular orbit)
Eccentricity:       0.000
Local Year:         0.333 days (8h 0m 0s)
Orbital Velocity:   11.569 km/s
Inclination:        0°
Local Day:          0.333 days (8h 0m 0s)
Axial Tilt:         n/a

Diameter:           148 km
Composition:        Rock and ice
Density:            2.70 g/cm3
Mass:               4.59 x 1015 tonnes (768/billion earths)
Gravity:            0.006 G
Escape Velocity:    0.091 km/s
Area:               68,800 km2
Surface Material:   Dark soil and ice
Atmosphere:         None
Pressure:           None
Albedo:             0.06
Temperature:        ???°C

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