Atlas is an inner moon of Saturn, orbiting around the outer edge of Saturn's A Ring. Like Pan, Atlas has a distinctive flying saucer shape created by a prominent equatorial ridge not seen on the other small moons of Saturn. Cassini images revealed in 2004 that a temporary faint ring of material with the orbit of Atlas.

The small, pointy moon has a mean radius of 9.4 miles (15.1 km). It orbits 85,544 miles (137,670 km) away from, taking 14.4 hours to complete its trip around the planet.