PIA09735: Tethys and Calypso
Target Name: Tethys
Is a satellite of: Saturn
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
Product Size: 564 x 531 pixels (width x height)
Produced By: Cassini Imaging Team
Primary Data Set: Cassini
Full-Res TIFF: PIA09735.tif (300 kB)
Full-Res JPEG: PIA09735.jpg (4.639 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:

Two companion moons share the sky before the Cassini spacecraft. Tethys is seen here with one of its two Trojan moons. Calypso, which trails the larger moon in its orbit by 60 degrees, is a couple of pixels across near lower right. Telesto (not pictured) is the other Tethys co-orbital moon, leading Tethys by 60 degrees.

For higher resolution Cassini views of Calypso (22 kilometers, or 14 miles across) and Tethys (1071 kilometers, or 665 miles across), see PIA07633 and PIA07738, respectively.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Aug. 25, 2007. The view was obtained at a distance of approximately 2.2 million kilometers (1.4 million miles) from Tethys. Image scale is 13 kilometers (8 miles) per pixel on Tethys.

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:
2007-09-25