Two large craters lie along the boundary between day and night on Saturn's
moon Rhea. The bright spots in the middle of each crater may be prominent
central peaks. Rhea is 1,528 kilometers (949 miles) across.
This view shows principally the trailing hemisphere on Rhea. The image has
been rotated so that north on Rhea is up.
The image was taken in visible light with the Cassini spacecraft
narrow-angle camera on Jan. 19, 2005, at a distance of approximately 1.9
million kilometers (1.2 million miles) from Rhea and at a
Sun-Rhea-spacecraft, or phase, angle of 121 degrees. Resolution in the
original image was 11 kilometers (7 miles) per pixel. The image has been
contrast-enhanced and magnified by a factor of two 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.