PIA09007: Ring of Twilight
Target Name: Titan
Is a satellite of: Saturn
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Wide Angle
Product Size: 712 x 698 pixels (width x height)
Produced By: Cassini Imaging Team
Primary Data Set: Cassini
Full-Res TIFF: PIA09007.tif (497.7 kB)
Full-Res JPEG: PIA09007.jpg (11.96 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 celestial circle of light is produced by the glow of sunlight scattered through the periphery of Titan's atmosphere as the Sun is occulted by Titan. It is the sum of all the sunsets and sunrises taking place on Titan at once.

The intriguing structure of Titan's north polar "hood" can be seen at upper left. A thin, detached, high-altitude global haze layer encircles the moon.

North on Titan (5,150 kilometers, 3,200 miles across) is up and rotated 23 degrees to the left.

The image was taken in visible blue light with the Cassini spacecraft wide-angle camera on June 29, 2007. The view was obtained at a distance of approximately 210,000 kilometers (131,000 miles) from Titan and at a Sun-Titan-spacecraft, or phase, angle of 167 degrees. Image scale is 12 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 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/home/index.cfm. The Cassini imaging team homepage is at http://ciclops.org.

Image Credit:
NASA/JPL/Space Science Institute

Image Addition Date:
2007-08-16