PIA12683: Chunks of Ice


Chunks of Ice

Caption:

A pair of Saturn's small, icy satellites accompany the planet's rings in this Cassini spacecraft snapshot.

Janus (179 kilometers, or 111 miles across) is farthest from Cassini here and occupies the top of the image. Prometheus (86 kilometers, or 53 miles across) orbits between the main rings and the thin F ring. The rings are between Janus and Prometheus. This view looks toward the northern, sunlit side of the rings from just above the ringplane.

The image was taken in visible green light with the Cassini spacecraft narrow-angle camera on April 9, 2010. The view was acquired at a distance of approximately 1 million kilometers (621,000 miles) from Prometheus and at a Sun-Prometheus-spacecraft, or phase, angle of 65 degrees. The view was acquired at a distance of approximately 1.1 million kilometers (684,000 miles) from Janus and at a sun-Janus-spacecraft, or phase, angle of 65 degrees. Image scale is about 6 kilometers (4 miles) per pixel on Prometheus and about 7 kilometers (4 miles) per pixel on Janus.

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 operations center is based at the Space Science Institute in Boulder, Colo.

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

Cataloging Keywords:

Name Value Additional Values
Target Saturn Rings F Ring, Janus, Prometheus, Saturn, Sun
System Saturn
Target Type Ring Planet, Satellite, 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 2010-07-23
Date in Caption 2010-04-09
Image Credit NASA/JPL/Space Science Institute
Source photojournal.jpl.nasa.gov/catalog/PIA12683
Identifier PIA12683