PIA07580: The Two Faces of Janus

The Two Faces of Janus


The Roman god Janus is usually depicted with two faces, one looking forward and one behind. Janus is captured here by Cassini, showing two faces of its own.

This view shows a sliver of Janus's dayside, plus much of the dark side. Part of the darkened terrain to the left is lit dimly by reflected light from Saturn, revealing craters there.

North on Janus is up in this image. A brightly sunlit view of Janus (181 kilometers, or 113 miles across) can be seen in PIA07529 .

The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on Aug. 2, 2005, at a distance of approximately 541,000 kilometers (336,000 miles) from Janus and at a Sun-Janus-spacecraft, or phase, angle of 147 degrees. Resolution in the original image was 3 kilometers (2 miles) per pixel. The image has been contrast-enhanced and magnified by a factor of two to aid visibility.

Background Info:

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 was designed, developed and assembled at JPL.

For more information about the Cassini-Huygens mission visit http://saturn.jpl.nasa.gov . For additional images visit the Cassini imaging team homepage http://ciclops.org .

Cataloging Keywords:

Name Value Additional Values
Target Janus Saturn
System Saturn
Target Type Satellite Planet
Mission Cassini-Huygens
Instrument Host Cassini Orbiter
Host Type Orbiter
Instrument Imaging Science Subsystem (ISS)
Detector Narrow Angle Camera
Extra Keywords Crater, Grayscale, Visual
Acquisition Date
Release Date 2005-09-06
Date in Caption 2005-08-02
Image Credit NASA/JPL/Space Science Institute
Source photojournal.jpl.nasa.gov/catalog/PIA07580
Identifier PIA07580