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Atlas


Atlas, the second of Saturn's satellites, orbits near the outer edge of the A-ring and is about 40 by 20 kilometers in size. It is probably a shepherd satellite for Saturn's A-ring.


Orbital Distance:   137,600 km (circular orbit)
Eccentricity:       0.002
Local Year:         0.602 days (14h 26m 52.8s)
Orbital Velocity:   16.622 km/s
Inclination:        0.300°
Local Day:          0.602 days (14h 26m 52.8s)
Axial Tilt:         n/a

Diameter:           20 km x 15 km
Composition:        Ice
Density:            0.46 g/cm3
Mass:               6.514 x 1012 tonnes (1/billion earths)
Gravity:            0.0002 G
Escape Velocity:    0.008 km/s
Area:               2,800 km2
Surface Material:   Mostly H2O ice
Atmosphere:         None
Pressure:           None
Albedo:             0.90
Temperature:        ???°C

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