PIA18312: Mimas by Saturnshine


Mimas by Saturnshine

Caption:

Although we are used to seeing Saturn's moons lit directly by the Sun, sometimes we can catch them illuminated by "Saturnshine." Here, we see Mimas (upper right) lit by light reflected off of Saturn.

With each reflection, the intensity of the illumination is decreased significantly. To better illustrate the effect of Saturnshine, in this image Mimas (246 miles, 396 kilometers across), has had its brightness enhanced by a factor of 2.5 relative to the rings.

This view looks toward the trailing hemisphere of Mimas. North on Mimas is up and rotated 8 degrees to the right. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Feb. 16, 2015.

The view was obtained at a distance of approximately 1.6 million miles (2.5 million kilometers) from Mimas and at a Sun-Mimas-spacecraft, or phase, angle of 148 degrees. Image scale is 9 miles (15 kilometers) per pixel.

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 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 http://www.nasa.gov/cassini . The Cassini imaging team homepage is at http://ciclops.org .

Cataloging Keywords:

Name Value Additional Values
Target Mimas Saturn, Sun
System Saturn
Target Type Satellite Planet, Sun
Mission Cassini-Huygens
Instrument Host Cassini Orbiter
Host Type Orbiter
Instrument Imaging Science Subsystem (ISS)
Detector Narrow Angle Camera
Extra Keywords Grayscale
Acquisition Date
Release Date 2015-04-13
Date in Caption 2015-02-16
Image Credit NASA/JPL-Caltech/Space Science Institute
Source photojournal.jpl.nasa.gov/catalog/PIA18312
Identifier PIA18312