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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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Seeing in the Dark
Title
Seeing in the Dark
Title
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Description:
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Seeing in the Dark
description
Seeing in the Dark
Description
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Full Description:
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New details on Iapetus are illuminated by reflected light from Saturn in this revealing Cassini image. Never-before-seen features on the Saturn-facing part of Iapetus¿ bright trailing hemisphere are visible for the first time, including many dark spots, and a sharper view of a dark, circular structure that was first seen at very low resolution by NASA's Voyager 1 in 1980. Iapetus diameter is 1,436 kilometers (892 miles). The image shows mainly the night side of Iapetus; part of the far brighter sunlit side appears at the right and is overexposed due to the long integration time of 180 seconds. Despite this long exposure time, almost no blurring due to the spacecraft¿s motion is apparent. This technique for imaging the night side of Iapetus will be used again during a flyby on Jan. 1, 2005, when Cassini will pass 13 times closer to the icy moon. The image was taken in visible light with the Cassini spacecraft narrow angle camera on Oct. 22, 2004, at a distance of 1.6 million kilometers (994,000 miles) from Iapetus, and from a Sun-Iapetus-spacecra ft, or phase, angle of 161 degrees. The view is centered on 0.4 degrees north latitude, 317 degrees west longitude on Iapetus. The image scale is 9.4 kilometers (5.8 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 Cassini-Huygens 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.n…and the Cassini imaging team home page, http://ciclops.org. *Image Credit:* NASA/JPL/Space Science Institute
Full_Description
New details on Iapetus are illuminated by reflected light from Saturn in this revealing Cassini image. Never-before-seen features on the Saturn-facing part of Iapetus¿ bright trailing hemisphere are visible for the first time, including many dark spots, and a sharper view of a dark, circular structure that was first seen at very low resolution by NASA's Voyager 1 in 1980. Iapetus diameter is 1,436 kilometers (892 miles). The image shows mainly the night side of Iapetus; part of the far brighter sunlit side appears at the right and is overexposed due to the long integration time of 180 seconds. Despite this long exposure time, almost no blurring due to the spacecraft¿s motion is apparent. This technique for imaging the night side of Iapetus will be used again during a flyby on Jan. 1, 2005, when Cassini will pass 13 times closer to the icy moon. The image was taken in visible light with the Cassini spacecraft narrow angle camera on Oct. 22, 2004, at a distance of 1.6 million kilometers (994,000 miles) from Iapetus, and from a Sun-Iapetus-spacecra ft, or phase, angle of 161 degrees. The view is centered on 0.4 degrees north latitude, 317 degrees west longitude on Iapetus. The image scale is 9.4 kilometers (5.8 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 Cassini-Huygens 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.n…and the Cassini imaging team home page, http://ciclops.org. *Image Credit:* NASA/JPL/Space Science Institute Full Description
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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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moons
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Keywords:
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iapetus
keywords
iapetus
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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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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Sun
facet_what
Sun
facet_what
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facet_what:
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Visible Light
facet_what
Visible Light
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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Voyager 1
facet_what
Voyager 1
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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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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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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1980
facet_when
1980
facet_when
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facet_when_year:
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1980
facet_when_year
1980
facet_when_year
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UID:
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SPD-SATRN-1091
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original url:
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original_url
original url
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