Scientists can use images such as this one from NASA's Cassini spacecraft to learn more about the nature of the particles that make up Saturn's rings.
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Polarized Surge

Although it may look to our eyes like other images of the rings, this infrared image of Saturn's rings was taken with a special filter that will only admit light polarized in one direction. Scientists can use these images to learn more about the nature of the particles that make up Saturn's rings.

The bright spot in the rings is the "opposition surge" where the Sun-Ring-Spacecraft angle passes through zero degrees. Ring scientists can also use the size and magnitude of this bright spot to learn more about the surface properties of the ring particles. To learn more about the surge, see PIA08247.

This view looks toward the sunlit side of the rings from about 19 degrees above the ringplane. The image was taken with the Cassini spacecraft wide-angle camera on Aug. 18, 2013 using a spectral filter sensitive to wavelengths of near-infrared light centered at 705 nanometers.

The view was acquired at a distance of approximately 712,000 miles (1.1 million kilometers) from Saturn and at a Sun-rings-spacecraft, or phase, angle of 7 degrees. Image scale is 43 miles (68 kilometers) 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 mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colo.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini. The Cassini imaging team homepage is at http://ciclops.org.

Image details

ID#:
PIA17152

Date added:
2014-01-20

Target:
S Rings

Mission:
Cassini-Huygens

Spacecraft:
Cassini Orbiter

Instruments:
Imaging Science Subsystem - Wide Angle

Rating:



Views:
768

Full-Res TIFF:
PIA17152.tif (1.03 MB)

Full-Res JPG:
PIA17152.jpg (0.12 MB)

Image credit:
NASA/JPL-Caltech/Space Science Institute