CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Moon at Work

Prometheus draws material from the F ring along an invisible thread of gravity. Near lower left is an identical feature the moon created on a previous pass near the ring.

Prometheus (86 kilometers, 53 miles across) is overexposed in this image, which was taken as part of a sequence designed to help refine scientists' understanding of the orbits of Saturn's small moons.

This view looks toward the unlit side of the rings from about 41 degrees above the ringplane.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 14, 2007 at a distance of approximately 1.8 million kilometers (1.1 million miles) from Prometheus. Image scale is 11 kilometers (7 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, 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 Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission, visit and the Cassini imaging team home page,

Credit: NASA/JPL/Space Science Institute
Released: March 28, 2007 (PIA 08916)
Image/Caption Information
  Moon at Work
PIA 08916

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