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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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An Infrared View of Saturn
Title
An Infrared View of Saturn
Title
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Original Caption Released with Image:
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In honor of NASA Hubble Space Telescope's eighth anniversary, we have gift wrapped Saturn in vivid colors. Actually, this image is courtesy of the new Near Infrared Camera and Multi-Object Spectrometer (NICMOS), which has taken its first peek at Saturn. The false-color image - taken Jan. 4, 1998 - shows the planet's reflected infrared light. This view provides detailed information on the clouds and hazes in Saturn's atmosphere.
The blue colors indicate a clear atmosphere down to a main cloud layer. Different shadings of blue indicate variations in the cloud particles, in size or chemical composition. The cloud particles are believed to be ammonia ice crystals. Most of the northern hemisphere that is visible above the rings is relatively clear. The dark region around the south pole at the bottom indicates a big hole in the main cloud layer.
The green and yellow colors indicate a haze above the main cloud layer. The haze is thin where the colors are green but thick where they are yellow. Most of the southern hemisphere (the lower part of Saturn) is quite hazy. These layers are aligned with latitude lines, due to Saturn's east-west winds.
The red and orange colors indicate clouds reaching up high into the atmosphere. Red clouds are even higher than orange clouds. The densest regions of two storms near Saturn's equator appear white. On Earth, the storms with the highest clouds are also found in tropical latitudes. The smaller storm on the left is about as large as the Earth, and larger storms have been recorded on Saturn in 1990 and 1994.
The rings, made up of chunks of ice, are as white as images of ice taken in visible light. However, in the infrared, water absorption causes various colorations. The most obvious is the brown color of the innermost ring. The rings cast their shadow onto Saturn. The bright line seen within this shadow is sunlight shining through the Cassini Division, the separation between the two bright rings. It is best observed on the left side, just above the rings. This view is possible due to a rare geometry during the observation. The next time this observable from Earth will be in 2006. An accurate investigation of the ring's shadow also shows sunlight shining through the Encke Gap, a thin division very close to the outer edge of the ring system.
Two of Saturn's satellites were recorded, Dione on the lower left and Tethys on the upper right. Tethys is just ending its transit across the disk of Saturn. They appear in different colors, yellow and green, indicating different conditions on their icy surfaces.
Wavelengths: A color image consists of three exposures (or three film layers). For visible true-color images, the wavelengths of these three exposures are 0.4, 0.5, and 0.6 micrometers for blue, green, and red light, respectively. This Saturn image was taken at longer infrared wavelengths of 1.0, 1.8, and 2.1 micrometers, displayed as blue, green, and red. Reflected sunlight is seen at all these wavelengths, since
Original_Caption_Rel eased_with_Image
In honor of NASA Hubble Space Telescope's eighth anniversary, we have gift wrapped Saturn in vivid colors. Actually, this image is courtesy of the new Near Infrared Camera and Multi-Object Spectrometer (NICMOS), which has taken its first peek at Saturn. The false-color image - taken Jan. 4, 1998 - shows the planet's reflected infrared light. This view provides detailed information on the clouds and hazes in Saturn's atmosphere.
The blue colors indicate a clear atmosphere down to a main cloud layer. Different shadings of blue indicate variations in the cloud particles, in size or chemical composition. The cloud particles are believed to be ammonia ice crystals. Most of the northern hemisphere that is visible above the rings is relatively clear. The dark region around the south pole at the bottom indicates a big hole in the main cloud layer.
The green and yellow colors indicate a haze above the main cloud layer. The haze is thin where the colors are green but thick where they are yellow. Most of the southern hemisphere (the lower part of Saturn) is quite hazy. These layers are aligned with latitude lines, due to Saturn's east-west winds.
The red and orange colors indicate clouds reaching up high into the atmosphere. Red clouds are even higher than orange clouds. The densest regions of two storms near Saturn's equator appear white. On Earth, the storms with the highest clouds are also found in tropical latitudes. The smaller storm on the left is about as large as the Earth, and larger storms have been recorded on Saturn in 1990 and 1994.
The rings, made up of chunks of ice, are as white as images of ice taken in visible light. However, in the infrared, water absorption causes various colorations. The most obvious is the brown color of the innermost ring. The rings cast their shadow onto Saturn. The bright line seen within this shadow is sunlight shining through the Cassini Division, the separation between the two bright rings. It is best observed on the left side, just above the rings. This view is possible due to a rare geometry during the observation. The next time this observable from Earth will be in 2006. An accurate investigation of the ring's shadow also shows sunlight shining through the Encke Gap, a thin division very close to the outer edge of the ring system.
Two of Saturn's satellites were recorded, Dione on the lower left and Tethys on the upper right. Tethys is just ending its transit across the disk of Saturn. They appear in different colors, yellow and green, indicating different conditions on their icy surfaces.
Wavelengths: A color image consists of three exposures (or three film layers). For visible true-color images, the wavelengths of these three exposures are 0.4, 0.5, and 0.6 micrometers for blue, green, and red light, respectively. This Saturn image was taken at longer infrared wavelengths of 1.0, 1.8, and 2.1 micrometers, displayed as blue, green, and red. Reflected sunlight is seen at all these wavelengths, since
Original Caption Released with Image
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Original Caption Released with Image:
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Saturn's own heat glows only at wavelengths above 4 micrometers. The Wide Field/Planetary Camera 2 was developed by the Jet Propulsion Laboratory and managed by the Goddard Spaced Flight Center for NASA's Office of Space Science. This image and other images and data received from the Hubble Space Telescope are posted on the World Wide Web on the Space Telescope Science Institute home page at URL http://oposite.stsc…
Original_Caption_Rel eased_with_Image
Saturn's own heat glows only at wavelengths above 4 micrometers. The Wide Field/Planetary Camera 2 was developed by the Jet Propulsion Laboratory and managed by the Goddard Spaced Flight Center for NASA's Office of Space Science. This image and other images and data received from the Hubble Space Telescope are posted on the World Wide Web on the Space Telescope Science Institute home page at URL http://oposite.stsc…Original Caption Released with Image
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Addition Date:
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1998-08-02
Addition_Date
1998-08-02
Addition Date
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Produced By:
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Space Telescope Science Institute
Produced_By
Space Telescope Science Institute
Produced By
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Mission:
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Hubble Space Telescope (HST)
Mission
Hubble Space Telescope (HST)
Mission
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Spacecraft:
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Hubble Space Telescope
Spacecraft
Hubble Space Telescope
Spacecraft
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Target Name:
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Saturn
Target_Name
Saturn
Target Name
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Is a satellite of:
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Sol (our sun)
Is_a_satellite_of
Sol (our sun)
Is a satellite of
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Instrument:
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Wide Field Planetary Camera 2
Instrument
Wide Field Planetary Camera 2
Instrument
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Product Size:
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1125 samples x 900 lines
Product_Size
1125 samples x 900 lines
Product Size
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Primary Data Set:
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Space Telescope Science Institute
Primary_Data_Set
Space Telescope Science Institute
Primary Data Set
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Producer ID:
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STSCI-PRC98-18
Producer_ID
STSCI-PRC98-18
Producer ID
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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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Earth
facet_what
Earth
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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Dione
facet_what
Dione
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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Tethys
facet_what
Tethys
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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Camera 2
facet_what
Camera 2
facet_what
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facet_what:
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Wide Field Planetary Camera 2
facet_what
Wide Field Planetary Camera 2
facet_what
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facet_what:
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Multi-Object Spectrometer
facet_what
Multi-Object Spectrometer
facet_what
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facet_what:
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NICMOS
facet_what
NICMOS
facet_what
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facet_what:
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Hubble Space Telescope (HST)
facet_what
Hubble Space Telescope (HST)
facet_what
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facet_what:
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Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
facet_what
Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
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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Dione
facet_where
Dione
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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Tethys
facet_where
Tethys
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_when:
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1990
facet_when
1990
facet_when
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facet_when:
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2006
facet_when
2006
facet_when
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facet_when_year:
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1990
facet_when_year
1990
facet_when_year
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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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PIA01268
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UID:
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SPD-PHOTJ-PIA01268
UID
SPD-PHOTJ-PIA01268
UID
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orignial url:
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orignial_url
orignial url
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