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Daphnis: Overview
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Black and white image of Daphnis and Saturn's
Daphnis as seen by the Cassini orbiter in 2010.

The gravitational pull of tiny Daphnis (7 km, or 4.3 miles across) perturbs the orbits of particles of Saturn's A ring -- sculpting the edge of the Keeler Gap into waves. Material on the inner edge of the gap orbits faster than the moon, so the waves there lead the moon in its orbit. Material on the outer edge moves slower than the moon, so waves there trail the moon.

Discovery:
Daphnis was discovered by the Cassini mission team on 1 May 2005.

How Daphnis Got its Name:
Formerly known as S/2005 S1, Daphnis is named for a shepherd, and pipes player who is a pastoral poet in Greek mythology. Daphnis was the son of Hermes, the brother of Pan and a descendent of the Titans.

Just the Facts
Orbit Size (semi-major axis):  136,500 km
Mean Radius:  3.8 ± 0.8 km
Volume:  230 km3
Mass:  77,930,758,521,054 kg
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Last Updated: 22 Jun 2011