Saturn and its moons – Titan & Tethys
This image was acquired with the Cassini spacecraft wide-angle camera on Jan. 30, 2008 at a distance of approximately 1.3 million km from Saturn. The view looks toward the unilluminated side of the rings from about 3 degrees above the ringplane. Credit: NASA/JPL/Space Science Institute
Titan is the largest moon of Saturn, with a diameter of 5,150 km.
Tethys is the 5th largest moon of Saturn, with a diameter of 1,071 km.
Titan (top right) emerges from behind Saturn, while ice-covered moon Tethys (bottom left), streaks into view, in this colourful scene. Notice that Saturn’s shadow darkens the rings near the limb. The dark strips on Saturn’s globe are the rings shadow.
The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency.
My Dark Sky 