Rhea and two "Possible Companions"

Caption NASA:"A couple of craters share a crescent of Lit Terrain on Saturn's moon Rhea.
Lit Terrain seen here is on the Trailing Hemisphere of Rhea. This view is centered on 48° North Latitude, 234° West Longitude. The North Pole is on the Terminator, about one-quarter of the way inward from the top of the image.

The image was taken in Visible Violet Light with the Cassini Spacecraft narrow-angle camera on June 3, 2009. The view was obtained at a distance of approx. 1,4 MKM (such as about 870.000 miles) from Rhea and at a Sun-Rhea-Spacecraft, or Phase, Angle of 121°.
Image scale is roughly 8 Km (about 5 miles) per pixel".