Saturn XV - 1980S28
Atlas, the second of Saturn's known satellites, orbits near the outer edge of the A-ring and is about 40 by 20 kilometers (25 by 15 miles) in size. It is probably a shepherd satellite for Saturn's A-ring. Atlas was discovered by R. Terrile in 1980 from photographs taken by Voyager during its encounter with Saturn.
|Discovered by||R. Terrile|
|Date of discovery||1980|
|Radius (Earth = 1)||3.1358e-03|
|Mean density (gm/cm^3)||?|
|Mean distance from Saturn (km)||137,640|
|Rotational period (days)||?|
|Orbital period (days)||0.6019|
|Mean orbital velocity (km/sec)||16.63|
|Orbital inclination (degrees)||0.0|
|Visual geometric albedo||0.9|
Cassini Spies Atlas
This is the highest resolution image yet taken of Saturn's moon Atlas, Atlas orbits near Saturn's A ring. At the time the picture was taken, the Cassini spacecraft was about 139,006 kilometers from Atlas.
Atlas has a distinct oblong shape with the hint of a few craters.
(Copyright Calvin J. Hamilton)
This image of Atlas was acquired by the Voyager 1 spacecraft on November 12, 1980. (Copyright Calvin J. Hamilton)