The Eternal Companions

Original caption:"The moons Dione and Tethys face each other across the gulf of Saturn's Rings. Here, the Cassini spacecraft looks on the Saturn-facing Hemisphere of Tethys below and the anti-Saturn side of Dione above. The dark groove in the Rings is the Cassini Division.

This image was taken in visible light with the Cassini spacecraft narrow-angle camera on Sept. 22, 2005, at a distance of approximately 860.000 Km (about 530.000 miles) from Dione. Tethys was on the far side of the rings, 1,5 MKM (roughly 900.000 miles) from Cassini. The image scale is 5 Km (about 3 miles) per pixel on Dione and 9 Km (about 6 miles) per pixel on Tethys".