This Cassini image of Saturn's moon Dione shows a nice view of the crater
Aeneas on the terminator. The crater's diameter is approximately 175
kilometers (109 miles). 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 side of Dione that faces Saturn. Dione is 1,118 kilometers
(695 miles) across.
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 Dec. 14, 2004 (see PIA06162).
The image was taken in visible light with the Cassini spacecraft narrow
angle camera on Dec. 10, 2004, at 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.
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 team is based at
the Space Science Institute, Boulder, Colo.
For more information, about the Cassini-Huygens mission visit,
http://saturn.jpl.nasa.gov and the Cassini imaging team home page,
http://ciclops.org.
