|
Collection:
|
|
NASA Cassini-Huygens Collection
Collection
NASA Cassini-Huygens Collection
Collection
|
|
Title:
|
|
The Janus/Epimetheus Ring
Title
The Janus/Epimetheus Ring
Title
|
|
Description:
|
|
The Janus/Epimetheus Ring
description
The Janus/Epimetheus Ring
Description
|
|
Full Description:
|
A new diffuse ring, coincident with the orbits of Saturn's moon's Janus and Epimetheus, has been revealed in ultra-high phase angle views from Cassini. Ultra-high phase angle indicates the sun is behind the target. The new ring is visible in this image (marked by a cross in the inset) outside the overexposed main rings and interior to the G and E rings. The G ring has a sharp inner boundary; the E ring is extremely broad and arcs across the upper and lower portions of the scene. While it is not unexpected that impact events on Janus and Epimetheus might kick particles off the moons' surfaces and inject them into Saturn orbit, it is, surprising that a well-defined structure exists at this location. The view looks down from about 15 degrees above the un-illuminated side of the rings. Some faint spokes can also be spotted in the main rings, made visible by sunlight diffusing through the B ring. The image was taken in visible light with the Cassini spacecraft wide-angle camera on Sept. 15, 2006, at a distance of approximately 2.2 million kilometers (1.3 million miles) from Saturn and at a sun-Saturn-spacecraf t angle of almost 179 degrees. Image scale is approximately 250 kilometers (155 miles) per pixel. 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.n…. The Cassini imaging team homepage is at http://ciclops.org. Credit: NASA/JPL/Space Science Institute
Full_Description
A new diffuse ring, coincident with the orbits of Saturn's moon's Janus and Epimetheus, has been revealed in ultra-high phase angle views from Cassini. Ultra-high phase angle indicates the sun is behind the target. The new ring is visible in this image (marked by a cross in the inset) outside the overexposed main rings and interior to the G and E rings. The G ring has a sharp inner boundary; the E ring is extremely broad and arcs across the upper and lower portions of the scene. While it is not unexpected that impact events on Janus and Epimetheus might kick particles off the moons' surfaces and inject them into Saturn orbit, it is, surprising that a well-defined structure exists at this location. The view looks down from about 15 degrees above the un-illuminated side of the rings. Some faint spokes can also be spotted in the main rings, made visible by sunlight diffusing through the B ring. The image was taken in visible light with the Cassini spacecraft wide-angle camera on Sept. 15, 2006, at a distance of approximately 2.2 million kilometers (1.3 million miles) from Saturn and at a sun-Saturn-spacecraf t angle of almost 179 degrees. Image scale is approximately 250 kilometers (155 miles) per pixel. 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.n…. The Cassini imaging team homepage is at http://ciclops.org. Credit: NASA/JPL/Space Science Institute Full Description
|
|
Date:
|
|
September 19, 2006
Date
September 19, 2006
Date
|
|
Keywords:
|
|
Janus
|
|
Keywords:
|
|
Epimetheus
keywords
Epimetheus
Keywords
|
|
Keywords:
|
|
high phase
keywords
high phase
Keywords
|
|
Keywords:
|
|
new ring
keywords
new ring
Keywords
|
|
Keywords:
|
|
ultra-high phase
keywords
ultra-high phase
Keywords
|
|
facet_what:
|
|
Saturn
facet_what
Saturn
facet_what
|
|
facet_what:
|
|
Cassini
facet_what
Cassini
facet_what
|
|
facet_what:
|
|
Cassini-Huygens
facet_what
Cassini-Huygens
facet_what
|
|
facet_what:
|
|
Huygens Probe
facet_what
Huygens Probe
facet_what
|
|
facet_what:
|
|
Moon
facet_what
Moon
facet_what
|
|
facet_what:
|
|
Cassini Orbiter
facet_what
Cassini Orbiter
facet_what
|
|
facet_what:
|
|
Sun
facet_what
Sun
facet_what
|
|
facet_what:
|
|
Visible Light
facet_what
Visible Light
facet_what
|
|
facet_what:
|
|
Janus
facet_what
Janus
facet_what
|
|
facet_where:
|
|
Saturn
facet_where
Saturn
facet_where
|
|
facet_where:
|
|
Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
|
|
facet_where:
|
|
California
facet_where
California
facet_where
|
|
facet_where:
|
|
Washington
facet_where
Washington
facet_where
|
|
facet_where:
|
|
Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
|
|
facet_where:
|
|
Washington, D.C.
facet_where
Washington, D.C.
facet_where
|
|
facet_when:
|
|
September 19, 2006
facet_when
September 19, 2006
facet_when
|
|
facet_when_year:
|
|
2006
facet_when_year
2006
facet_when_year
|
|
UID:
|
|
SPD-SATRN-2277
|
|
original url:
|
original_url
original url
|
