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Collection:
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NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
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Title:
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Janus Hides in Plain Sight
Title
Janus Hides in Plain Sight
Title
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Original Caption Released with Image:
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Tiny, dust-sized particles in Saturn's rings become much easier to see at high phase angle -- the angle formed by the Sun, the rings and the spacecraft. The brightest ring is the F ring; the next feature to the left is the outer edge of the A ring. Inward of that, and very bright, are the ringlets in the Encke gap. Epimetheus (116 kilometers, or 72 miles across) is easy to spot just right of the outer F ring edge. Janus (181 kilometers, or 113 miles across), however, is quite a bit harder to make out; it is the dark spot located directly to the left of Epimetheus, above the gap between the A and F rings. Within the space between the A and F rings there are two faint rings seen previously by the Cassini spacecraft. The inner faint ring (called R/2004 S1) coincides with the orbit of Atlas. The outer one forms the inner boundary of the orbit of Prometheus. The narrow G ring is visible above and below the bright F ring. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on July 15, 2006 at a distance of approximately 2.7 million kilometers (1.7 million miles) from Epimetheus and 2.8 million kilometers (1.7 million miles) from Janus. The view was acquired at a Sun-Epimetheus-space craft, or phase, angle of 164 degrees. Image scale is 16 kilometers (10 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.nasa.gov/home/index.cfm. The Cassini imaging team homepage is at http://ciclops.org.
Original_Caption_Rel eased_with_Image
Tiny, dust-sized particles in Saturn's rings become much easier to see at high phase angle -- the angle formed by the Sun, the rings and the spacecraft. The brightest ring is the F ring; the next feature to the left is the outer edge of the A ring. Inward of that, and very bright, are the ringlets in the Encke gap. Epimetheus (116 kilometers, or 72 miles across) is easy to spot just right of the outer F ring edge. Janus (181 kilometers, or 113 miles across), however, is quite a bit harder to make out; it is the dark spot located directly to the left of Epimetheus, above the gap between the A and F rings. Within the space between the A and F rings there are two faint rings seen previously by the Cassini spacecraft. The inner faint ring (called R/2004 S1) coincides with the orbit of Atlas. The outer one forms the inner boundary of the orbit of Prometheus. The narrow G ring is visible above and below the bright F ring. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on July 15, 2006 at a distance of approximately 2.7 million kilometers (1.7 million miles) from Epimetheus and 2.8 million kilometers (1.7 million miles) from Janus. The view was acquired at a Sun-Epimetheus-space craft, or phase, angle of 164 degrees. Image scale is 16 kilometers (10 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.nasa.gov/home/index.cfm. The Cassini imaging team homepage is at http://ciclops.org. Original Caption Released with Image
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Image Credit:
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NASA/JPL/Space Science Institute
Image_Credit
NASA/JPL/Space Science Institute
Image Credit
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Produced By:
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Cassini Imaging Team
Produced_By
Cassini Imaging Team
Produced By
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Mission:
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Cassini
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Spacecraft:
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Cassini Orbiter
Spacecraft
Cassini Orbiter
Spacecraft
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Target Name:
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S Rings
Target_Name
S Rings
Target Name
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Is a satellite of:
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Saturn
Is_a_satellite_of
Saturn
Is a satellite of
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Instrument:
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Imaging Science Subsystem - Narrow Angle
Instrument
Imaging Science Subsystem - Narrow Angle
Instrument
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Product Size:
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914 samples x 375 lines
Product_Size
914 samples x 375 lines
Product Size
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Primary Data Set:
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Cassini
Primary_Data_Set
Cassini
Primary Data Set
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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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Atlas
facet_what
Atlas
facet_what
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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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Visible Light
facet_what
Visible Light
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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Huygens Probe
facet_what
Huygens Probe
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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Imaging Science Subsystem (ISS)
facet_what
Imaging Science Subsystem (ISS)
facet_what
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facet_what:
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Janus
facet_what
Janus
facet_what
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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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Saturn
facet_where
Saturn
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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July 15, 2006
facet_when
July 15, 2006
facet_when
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facet_when_year:
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2006
facet_when_year
2006
facet_when_year
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Image #:
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PIA08244
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UID:
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SPD-PHOTJ-PIA08244
UID
SPD-PHOTJ-PIA08244
UID
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orignial url:
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orignial_url
orignial url
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