CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Shadows of Janus

Cassini catches a hint of topography on Janus, which orbits Saturn in the region just outside the planet's narrow F ring.

This view looks toward the unilluminated side of the rings from about 12 degrees above the ringplane. Janus is 179 kilometers (111 miles) across.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 14, 2008. The view was acquired at a distance of approximately 1.5 million kilometers (930,000 miles) from Janus and at a Sun-Janus-spacecraft, or phase, angle of 22 degrees. Image scale is 9 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: June 2, 2008 (PIA 09914)
Image/Caption Information
  Shadows of Janus
PIA 09914

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