The image also shows the vastness of Saturn. Tethys is significantly closer to the camera, while the planet is in the background, yet it is still dwarfed by the giant Saturn.
This view looks toward the anti-Saturn side of Tethys.
The view was obtained at a distance of approximately 120,000 kilometres from Tethys.
You can read more about Tethys here.
The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA’s Science Mission Directorate, Washington.