CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Ring Slicer
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Ring Slicer
PIA 18324

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  Saturn's moon Prometheus, seen here looking suspiciously blade-like, is captured near some of its sculpting in the F ring.

Prometheus' (53 miles or 86 kilometers across) orbit sometimes takes it into the F ring. When it enters the ring, it leaves a gore where its gravitational influence clears out some of the smaller ring particles. Below Prometheus, the dark lanes interior to the F ring’s bright core provide examples of previous ring-moon interactions.

This view looks toward the unilluminated side of the rings from about 7 degrees below the ringplane. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 15, 2015.

The view was obtained at a distance of approximately 286,000 miles (461,000 kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 115 degrees. Image scale is 2 miles (3 kilometers) per pixel.

The Cassini Solstice 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 Solstice Mission visit, and

Credit: NASA/JPL-Caltech/Space Science Institute
Released: July 6, 2015 (PIA 18324)
Image/Caption Information

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