Mimas: the "Ring Master"

Caption NASA originale, tratta dal Planetary Photojournal:"Mimas, seen here beyond Saturn's rings, is a major sculptor of Saturn's rings. The 398-Km-wide moon not only maintains the Cassini Division (not seen here), a gap wide enough to be visible from Earth through a small telescope, but it is also responsible for two of the thin, bright bands visible in this image near the rings' center, interior to the dark Encke Gap.
Knots in the thin, twisted F-Ring also are easily visible here.
The image was taken in visible light with the Cassini spacecraft narrow angle camera on Sept. 7, 2004, at a distance of 8.8 MKMs from Mimas and at a Sun-Mimas-spacecraft - or phase - angle of 84 degrees. The image scale is 53 Km per pixel".