This Cassini image of Dione (1,123 kilometers, 698 miles across) shows a nice view of the approximately 175-kilometer (109 mile)-diameter crater Aeneas on the terminator. The crater's central peak is about 3.5 kilometers (2 miles) high, which is comparable to the depth of the crater. This is principally the face of Dione that faces Saturn.
The bright features on the moon's eastern limb are part of the fracture system seen at higher resolution in Cassini's first close approach to Dione on December 14, 2004 (see PIA06162).
The image was taken in visible light with the narrow angle camera on December 10, 2004, from a distance of 2.7 million kilometers (1.7 million miles) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 46 degrees. The image scale is about 16 kilometers (10 miles) per pixel. The image has been magnified by a factor of two and contrast enhanced to aid visibility.
[Caption updated on October 4, 2005.]
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 Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. 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.