Janus and its Shadow on the Rings

Caption NASA: (Main Frame) "The Cassini Spacecraft catches Janus joining other Saturnian moons in the Equinox "shadow-casting" party. As Saturn approaches its August 2009 Equinox, the Planet's moons cast shadows onto the Rings. Janus (about 179 Km, or approx. 111 miles across) is not visible in this image it has been added in the inset on upper right), but its shadow stretches across Saturn's A and F-Rings. Three background stars are visible in the image.

This view looks toward the sunlit side of the Rings from about 21° below the Ring-Plane. The image was taken in vVisible Light with the Cassini Spacecraft narrow-angle camera on May 10, 2009. The view was acquired at a distance of approx. 965.000 kM (such as about 600.000 miles) from Saturn and at a Phase Angle of 46°.
Image scale is roughly 5 Km (a little more than 3 miles) per pixel".

(Inset): "The small moon Janus is illuminated by light from both the Sun and Saturn. This view looks toward the South Pole of Janus which lies on the Terminator, just below the center of the image. Brightly lit terrain seen on the right is on the Leading Hemisphere of Janus. Light reflected off Saturn dimly lights the Saturn-facing side of Janus on the top left of the image.

The image was taken in Visible Light with the Cassini Spacecraft narrow-angle camera on May 9, 2009. The view was acquired at a distance of approx. 974.000 Km (such as approx. 605.000 miles) from Janus and at a Phase Angle of 99°.
Image scale is roughly 6 Km (a little less than 4 miles) per pixel".