CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Prometheus Amid Rings
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Saturn's small, potato-shaped moon Prometheus orbits between the main rings and the thin F ring in this Cassini view.

Prometheus can be seen just above the center of the image as it orbits in the Roche Division. The gravity of Prometheus (86 kilometers, 53 miles across) periodically creates streamer-channels in the F ring. To learn more and to watch a movie of this process, see PIA08397.

This view looks toward the northern, sunlit side of the rings from just above the ringplane.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 15, 2010. The view was acquired at a distance of approximately 2.6 million kilometers (1.6 million miles) from Prometheus. Image scale is 15 kilometers (10 miles) per pixel.

The Cassini Equinox Mission is a joint United States and European endeavor. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. 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 Equinox Mission visit, and

Credit: NASA/JPL/Space Science Institute
Released: July 13, 2010 (PIA 12675)
Image/Caption Information
  Prometheus Amid Rings
PIA 12675

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