CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Prometheus Makes Contact

Prometheus Makes Contact
PIA 08944

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  The F ring shepherd moon Prometheus touches the face of Saturn once more before moving off into blackness and continuing in its orbit.

The F ring itself is visible as a thin line just below Prometheus (86 kilometers, 53 miles across).

This view looks toward the unilluminated side of the rings from about 18 degrees above the ringplane. North on Saturn is up and rotated about 30 degrees to the right.

Images taken using red, green and blue spectral filters were combined to create this natural color view. The images were obtained by the Cassini spacecraft narrow-angle camera on April 13, 2007 at a distance of approximately 1.7 million kilometers (1 million miles) from Prometheus and 1.8 million kilometers (1.1 million miles) per pixel from Saturn. Image scale is 10 kilometers (6 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: May 21, 2007 (PIA 08944)
Image/Caption Information

Alliance Member Comments
Red_dragon (May 27, 2007 at 6:15 AM):
Without doubt, images taken with the NAC are the most dramatic ones for the perspective its largue focal lenght gives ("Mimas blues" is another excellent example). Nice work, as usual.