CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Map of Dione - February 2010

This global map of Saturn's moon Dione was created using images taken during flybys by NASA's Cassini spacecraft. Images from NASA's Voyager mission fill the gaps in Cassini's coverage.

An extensive system of bright ice cliffs created by tectonic fractures adorns the moon's trailing hemisphere, which is centered on 270 degrees west.

The map is a simple cylindrical (equidistant) projection and has a scale of 153 meters (500 feet) per pixel at the equator. The resolution of the map is 64 pixels per degree. The mean radius of Dione used for projection of this map is 563 kilometers (350 miles). Like the 2008 version of the map (PIA08413), this updated map has been shifted west by 0.6 degrees of longitude, compared to the 2006 version of the map (PIA08341), in order to conform to the International Astronomical Union longitude system convention for Dione.

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: April 15, 2010 (PIA 12577)
Image/Caption Information
  Map of Dione - February 2010
PIA 12577

Avg Rating: 7.05/10

Labeled Full Size 24810x14085:
JPEG 54.8 MB
PNG 146.9 MB
TIFF 172.0 MB

Half Size 12405x7043:
JPEG 18.0 MB
PNG 45.8 MB
TIFF 53.3 MB

Quarter Size 6203x3521:
PNG 14.3 MB
TIFF 15.8 MB


Map of Dione - February 2010
PIA 12577

Avg Rating: 10/10

Unlabeled Full Size 23040x11520:
JPEG 53.4 MB
PNG 104.4 MB
TIFF 162.2 MB