CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Circles on Saturn

Saturn's winds race furiously around the planet, blowing at speeds in excess of 600 miles (1,000 kilometers) per hour at the equator. As they do so, they form distinct belts and zones which encircle the planet's pole, as well as its famous hexagon. These zonal winds spin off swirls and eddies, which are significant storms in their own right.

This view looks toward the sunlit side of the rings from about 51 degrees above the ringplane. The image was taken with the Cassini spacecraft wide-angle camera on Dec. 27, 2013 using a spectral filter which preferentially admits wavelengths of near-infrared light centered at 752 nanometers.

The view was acquired at a distance of approximately 1.3 million miles (2 million kilometers) from Saturn. Image scale is 75 miles (120 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/SSI
Released: April 14, 2014 (PIA 17160)
Image/Caption Information
  Circles on Saturn
PIA 17160

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Alliance Member Comments
NeKto (Apr 14, 2014 at 8:50 AM):
Cicles on Saturn? that big thing doesn't look like a circle to me. (could be my bizare vision is acting up again) has there been any more information to help understand what produces/sustains the hexagon? you did get a very good picture of it here.