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Collection:
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NASA Cassini-Huygens Collection
Collection
NASA Cassini-Huygens Collection
Collection
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Title:
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Two Ultraviolet Views of Iapetus
Title
Two Ultraviolet Views of Iapetus
Title
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Description:
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Two Ultraviolet Views of Iapetus
description
Two Ultraviolet Views of Iapetus
Description
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Full Description:
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The far left image shows the bright-dark boundary region on Saturn's moon Iapetus at far-ultraviolet wavelengths, viewed by Cassini's ultraviolet imaging spectrograph on Sept. 10, 2007. These wavelengths represent reflected solar light and indicate where the surface is brightest and highest in water ice abundance. (Red indicates the brightest regions, purple the darkest.) The bright "Voyager Mountains", part of the equatorial ridge, are seen as bright spots against a dark background. The dark material that covers one hemisphere of Iapetus is indicated in purple and is seen on the right side of this image. The middle image is a color composite: blue-green (longer ultraviolet wavelengths) indicates where the surface is bright and probably richest in water ice. Red (short ultraviolet wavelengths) indicates where the surface is low in water ice and relatively high in dirty material. The sky background is also bright at these wavelengths, making the limb, or edge, of Iapetus where the surface is dark indistinguishable from the sky background. The image on the right, taken by the imaging science subsystem, is for reference, with the regions observed by Cassini's ultraviolet imaging spectrometer outlined in red. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. NASA's 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. The ultraviolet imaging spectrograph was designed and built at, and the team is based at the University of Colorado, Boulder. 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 ultraviolet imaging spectrograph team home page is at http://lasp.colorad…. The Cassini imaging team homepage is at http://ciclops.org. Credit: NASA/JPL/University of Colorado/Space Science Institute
Full_Description
The far left image shows the bright-dark boundary region on Saturn's moon Iapetus at far-ultraviolet wavelengths, viewed by Cassini's ultraviolet imaging spectrograph on Sept. 10, 2007. These wavelengths represent reflected solar light and indicate where the surface is brightest and highest in water ice abundance. (Red indicates the brightest regions, purple the darkest.) The bright "Voyager Mountains", part of the equatorial ridge, are seen as bright spots against a dark background. The dark material that covers one hemisphere of Iapetus is indicated in purple and is seen on the right side of this image. The middle image is a color composite: blue-green (longer ultraviolet wavelengths) indicates where the surface is bright and probably richest in water ice. Red (short ultraviolet wavelengths) indicates where the surface is low in water ice and relatively high in dirty material. The sky background is also bright at these wavelengths, making the limb, or edge, of Iapetus where the surface is dark indistinguishable from the sky background. The image on the right, taken by the imaging science subsystem, is for reference, with the regions observed by Cassini's ultraviolet imaging spectrometer outlined in red. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. NASA's 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. The ultraviolet imaging spectrograph was designed and built at, and the team is based at the University of Colorado, Boulder. 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 ultraviolet imaging spectrograph team home page is at http://lasp.colorad…. The Cassini imaging team homepage is at http://ciclops.org. Credit: NASA/JPL/University of Colorado/Space Science Institute Full Description
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Date:
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October 8, 2007
Date
October 8, 2007
Date
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Keywords:
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gallery
keywords
gallery
Keywords
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Keywords:
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images
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Keywords:
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Cassini
keywords
Cassini
Keywords
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Keywords:
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mission
keywords
mission
Keywords
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Keywords:
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Huygens
keywords
Huygens
Keywords
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Keywords:
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probe
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Keywords:
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Saturn
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Keywords:
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explore
keywords
explore
Keywords
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Keywords:
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videos
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Keywords:
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movies
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Keywords:
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Jupiter
keywords
Jupiter
Keywords
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Keywords:
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flyby
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Keywords:
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spacecraft
keywords
spacecraft
Keywords
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Keywords:
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assembly
keywords
assembly
Keywords
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Keywords:
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launch
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Keywords:
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flight
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Keywords:
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operations facilities
keywords
operations facilities
Keywords
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Keywords:
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mpeg
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Keywords:
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Quicktime
keywords
Quicktime
Keywords
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facet_what:
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Saturn
facet_what
Saturn
facet_what
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facet_what:
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Cassini
facet_what
Cassini
facet_what
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facet_what:
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Jupiter
facet_what
Jupiter
facet_what
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facet_what:
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Cassini-Huygens
facet_what
Cassini-Huygens
facet_what
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facet_what:
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Huygens Probe
facet_what
Huygens Probe
facet_what
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facet_what:
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Moon
facet_what
Moon
facet_what
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facet_what:
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Cassini Orbiter
facet_what
Cassini Orbiter
facet_what
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facet_what:
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Iapetus
facet_what
Iapetus
facet_what
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facet_what:
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Voyager
facet_what
Voyager
facet_what
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facet_what:
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Spectrometer
facet_what
Spectrometer
facet_what
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facet_what:
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Imaging Science Subsystem (ISS)
facet_what
Imaging Science Subsystem (ISS)
facet_what
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facet_what:
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Ultraviolet Imaging Spectrograph (UVIS)
facet_what
Ultraviolet Imaging Spectrograph (UVIS)
facet_what
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facet_where:
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Saturn
facet_where
Saturn
facet_where
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facet_where:
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Jupiter
facet_where
Jupiter
facet_where
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facet_where:
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Jet Propulsion Laboratory
facet_where
Jet Propulsion Laboratory
facet_where
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facet_where:
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California
facet_where
California
facet_where
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facet_where:
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Washington
facet_where
Washington
facet_where
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facet_where:
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Colorado
facet_where
Colorado
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_where:
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Washington, D.C.
facet_where
Washington, D.C.
facet_where
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facet_when:
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October 8, 2007
facet_when
October 8, 2007
facet_when
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facet_when_year:
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2007
facet_when_year
2007
facet_when_year
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UID:
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SPD-SATRN-2770
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original url:
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original_url
original url
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