CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Calypso Close Up

Calypso Close Up
PIA 12598

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  Cassini's February 2010 encounter with Calypso yielded this incredibly detailed view of this Trojan moon.

Irregularly shaped Calypso is one of two Trojan moons of the larger moon Tethys. See PIA07633 to learn more about Calypso and its fellow Tethys Trojan, Telesto. Like Telesto, Calypso's smooth surface does not appear to retain the record of intense cratering that most of Saturn's other moons possess (see PIA07702).

This view looks toward the leading hemisphere of Calypso (21 kilometers, 12 miles across). North on Calypso is up and rotated 1 degree to the left. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 13, 2010. The view was acquired at a distance of approximately 21,000 kilometers (13,000 miles) from Calypso and at a Sun-Calypso-spacecraft, or phase, angle of 75 degrees. Scale in the original image was 128 meters (419 feet) per pixel. The image has been magnified by a factor of two and contrast-enhanced to aid visibility.

The Cassini Equinox 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 Equinox Mission visit, and

Credit: NASA/JPL/Space Science Institute
Released: March 26, 2010 (PIA 12598)
Image/Caption Information

Alliance Member Comments
NeKto (Mar 26, 2010 at 9:43 AM):
so often when i view this site i wish there were more words for "wow."
this image give the impression of "snow" flowing down a mountain. everything about this surface looks "new". no craters and the look of fresh snowfall.