4.3-mile-wide Daphnis races along its track, the 26-mile-wide Keeler Gap in Saturn’s A ring, stirring up sinuous edge waves in the ring material behind and before it.
Not only does the shepherd moon cast a small shadow onto the ring, but so do the crests of the waves it’s creating! It’s a wonderful little display of relief in the dynamics of the rings.
Daphnis was discovered by the Cassini mission in 2005.
The image above was taken by Cassini’s cameras on May 10. Contrast was enhanced from the original raw image file.
Image credit: NASA/JPL/Space Science Institute