Gibbous Tethys

Caption NASA:"Like the lengthy story of its Greek king namesake, the humongous Odysseus Impact Basin stretches on and on across Tethys.
The approx. 450-Km (about 280-mile) wide Odysseus Crater is a well-preserved example of an ancient multi-ringed Impact Basin. The Outer Ring's steep, cliff-like walls descend to broad internal terraces. The Inner Ring consists of a circular band of icy mountains creating a crown shape with a diameter of about 140 Km (approx. 87-miles).
This view looks toward the leading hemisphere of Tethys (1062 kilometers, or 660 miles across). North on Tethys is up and rotated 2 degrees to the right.

The image was taken in visible light with the Cassini Spacecraft narrow-angle camera on Jan. 2, 2009. The view was obtained at a distance of approx. 816.000 Km (about 507.000 miles) from Tethys and at a Sun-Tethys-Spacecraft, or Phase, Angle of 58°.
Image scale is roughly 5 Km (about 3 miles) per pixel".