PDS logoPlanetary Data System
PDS Information
Find a Node - Use these links to navigate to any of the 8 publicly accessible PDS Nodes.

This bar indicates that you are within the PDS enterprise which includes 6 science discipline nodes and 2 support nodes which are overseen by the Project Management Office at NASA's Goddard Space Flight Center (GSFC). Each node is led by an expert in the subject discipline, supported by an advisory group of other practitioners of that discipline, and subject to selection and approval under a regular NASA Research Announcement.
Click here to return to the Photojournal Home Page Click here to view a list of Photojournal Image Galleries Photojournal_inner_header
Latest Images  |  Spacecraft & Technology  |  Animations  |  Space Images App  |  Feedback  |  Photojournal Search  

PIA07718: Arc in the Tenuous G Ring
 Target Name:  S Rings
 Is a satellite of:  Saturn
 Mission:  Cassini-Huygens
 Spacecraft:  Cassini Orbiter
 Instrument:  Imaging Science Subsystem 
 Product Size:  1716 x 568 pixels (w x h)
 Produced By:  Cassini Imaging Team
 Primary Data Set:  Cassini
 Full-Res TIFF:  PIA07718.tif (976.1 kB)
 Full-Res JPEG:  PIA07718.jpg (188.9 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

This sequence of images shows a faint arc of material in Saturn's G ring, a tenuous ring outside the main ring system. These images were each taken about 45 minutes apart. During this time, the arc (slightly brighter than the ring itself) moves around the outer edge of the ring.

The arc is visible on the lower part of the ring in the first image, just beneath the ansa (or outer edge). In the second image the arc is easily seen on the outer edge, and then faintly just above the outer edge in the third image.

What makes this part of the G ring brighter than other parts is not clear. However, the existence of this arc might hold clues about how this ring was formed and where the material which makes up this ring comes from.

These three images were taken in polarized near-infrared light using the Cassini spacecraft narrow-angle camera on May 24, 2005, at a distance of approximately 1.7 million kilometers (1.1 million miles) from Saturn. Resolution in the original images was about 97 kilometers (60 miles) per pixel. The images have been contrast-enhanced to aid visibility.

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 was designed, developed and assembled at JPL.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov. For additional images visit the Cassini imaging team homepage http://ciclops.org.

Image Credit:
NASA/JPL/Space Science Institute

Image Addition Date:
2005-09-05