CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Hanging Half-Moon

This Cassini image shows crater-covered Tethys (1,062 kilometers, 660 miles across) as it slid silently along in its orbit while Saturn's delicate rings sliced the view in two.

The image was taken in visible light with the narrow angle camera on February 23, 2005, from a distance of approximately 2.1 million kilometers (1.3 million miles) from Tethys and at a Sun-Tethys-spacecraft, or phase, angle of 78 degrees. The image scale is 13 kilometers (8 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: April 7, 2005 (PIA 06622)
Image/Caption Information
  Hanging Half-Moon
PIA 06622

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