CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Dione's Cratered Surface

Cassini looks down on the cratered northern leading hemisphere of Dione, showing the moon's pockmarked surface.

This view is centered on terrain at 42 degrees north latitude, 131 degrees west longitude. Lit terrain seen here is on the leading hemisphere and anti-Saturn side of Dione (1123 kilometers, 698 miles across). The north pole of Dione lies along the terminator to the left of the top of the image.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on June 11, 2009. The view was acquired at a distance of approximately 641,000 kilometers (399,000 miles) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 44 degrees. Image scale is 4 kilometers (2 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: October 12, 2009 (PIA 11599)
Image/Caption Information
  Dione's Cratered Surface
PIA 11599

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Alliance Member Comments
Dragon_of_Luck_Mah_Jonng1971 (Oct 16, 2009 at 1:37 PM):
Different crater densities indicate the ages of those parts of Dione's crust and when the last resurfacing event happened there.
There is a very long crack at the upper right that looks interesting.