CICLOPS: Cassini Imaging Central Laboratory for OPerationS

Three Little Moons
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Three of the small worlds that hug the outer edges of Saturn's immense ring system are captured in this Cassini portrait.

The two F ring shepherd moons, Prometheus (86 kilometers, 53 miles across) and Pandora (81 kilometers, 50 miles across) are seen flanking the ring at bottom. Janus (179 kilometers, 111 miles across) is visible near the top of the scene.

The image was taken in visible green light with the Cassini spacecraft wide-angle camera on Jan. 18, 2007 at a distance of approximately 1.1 million kilometers (700,000 miles) from Saturn. Image scale on the sky at the distance of Saturn is 61 kilometers (38 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: February 27, 2007 (PIA 08885)
Image/Caption Information
  Three Little Moons
PIA 08885

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