Mimas, Janus and Prometheus, from the darkside

Caption NASA originale: "Visible in this image are: Mimas (398 Km, or 247 miles across) brightest and above center; Janus (181 Km, or 112 miles across) second brightest at upper left; and Prometheus (102 Km, or 63 miles across) just above the main rings at upper left.
The normally bright B-Ring appears very dark from this vantage point. Regions with smaller concentrations of particles, such as the Cassini division (bright near center) transmit more sunlight and thus are brighter.
The image was taken in visible light with the Cassini spacecraft wide angle camera on Oct. 27, 2004, at a distance of 757.000 Km(470.000miles) from Saturn. The image scale is about 42 Km (26 miles) per pixel".