|
Collection:
|
|
NASA Planetary Photo Journal Collection
Collection
NASA Planetary Photo Journal Collection
Collection
|
|
Title:
|
|
Ganymede
|
|
Original Caption Released with Image:
|
|
This Voyager 2 color photo of Ganymede, the largest Galilean satellite, was taken on July 7, 1979, from a range of 1.2 million kilometers. Most of this portion of Ganymede will be imaged at high resolution during closest approach with the satellite on the evening of July 8, 1979. The photo shows a large dark circular feature about 3200 kilometers in diameter with narrow closely-spaced light bands traversing its surface. The bright spots dotting the surface are relatively recent impact craters, while lighter circular areas may be older impact areas. The light branching bands are ridged and grooved terrain first seen on Voyager 1 and are younger than the more heavily cratered dark regions. The nature of the brightish region covering the northern part of the dark circular feature is uncertain, but it may be some type of condensate. Most of the features seen on the surface of Ganymede are probably both internal and external responses of the very thick icy layer which comprises the crust of this satellite.
Original_Caption_Rel eased_with_Image
This Voyager 2 color photo of Ganymede, the largest Galilean satellite, was taken on July 7, 1979, from a range of 1.2 million kilometers. Most of this portion of Ganymede will be imaged at high resolution during closest approach with the satellite on the evening of July 8, 1979. The photo shows a large dark circular feature about 3200 kilometers in diameter with narrow closely-spaced light bands traversing its surface. The bright spots dotting the surface are relatively recent impact craters, while lighter circular areas may be older impact areas. The light branching bands are ridged and grooved terrain first seen on Voyager 1 and are younger than the more heavily cratered dark regions. The nature of the brightish region covering the northern part of the dark circular feature is uncertain, but it may be some type of condensate. Most of the features seen on the surface of Ganymede are probably both internal and external responses of the very thick icy layer which comprises the crust of this satellite.
Original Caption Released with Image
|
|
Addition Date:
|
|
1999-06-16
Addition_Date
1999-06-16
Addition Date
|
|
Produced By:
|
|
JPL
Produced_By
JPL
Produced By
|
|
Mission:
|
|
Voyager
|
|
Spacecraft:
|
|
Voyager 2
Spacecraft
Voyager 2
Spacecraft
|
|
Target Name:
|
|
Ganymede
Target_Name
Ganymede
Target Name
|
|
Is a satellite of:
|
|
Jupiter
Is_a_satellite_of
Jupiter
Is a satellite of
|
|
Instrument:
|
|
Imaging Science Subsystem - Narrow Angle
Instrument
Imaging Science Subsystem - Narrow Angle
Instrument
|
|
Product Size:
|
|
800 samples x 800 lines
Product_Size
800 samples x 800 lines
Product Size
|
|
Primary Data Set:
|
|
Voyager EDRs
Primary_Data_Set
Voyager EDRs
Primary Data Set
|
|
Producer ID:
|
|
P21751
Producer_ID
P21751
Producer ID
|
|
facet_what:
|
|
Jupiter
facet_what
Jupiter
facet_what
|
|
facet_what:
|
|
Voyager
facet_what
Voyager
facet_what
|
|
facet_what:
|
|
Voyager 2
facet_what
Voyager 2
facet_what
|
|
facet_what:
|
|
Voyager 1
facet_what
Voyager 1
facet_what
|
|
facet_what:
|
|
Ganymede
facet_what
Ganymede
facet_what
|
|
facet_what:
|
|
Imaging Science Subsystem (ISS)
facet_what
Imaging Science Subsystem (ISS)
facet_what
|
|
facet_what:
|
|
Ganymede (Jupiter Moon)
facet_what
Ganymede (Jupiter Moon)
facet_what
|
|
facet_where:
|
|
Jupiter
facet_where
Jupiter
facet_where
|
|
facet_where:
|
|
Ganymede
facet_where
Ganymede
facet_where
|
|
facet_where:
|
|
Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
|
|
facet_when:
|
|
July 7, 1979
facet_when
July 7, 1979
facet_when
|
|
facet_when:
|
|
July 8, 1979
facet_when
July 8, 1979
facet_when
|
|
facet_when_year:
|
|
1979
facet_when_year
1979
facet_when_year
|
|
Image #:
|
|
PIA01972
|
|
UID:
|
|
SPD-PHOTJ-PIA01972
UID
SPD-PHOTJ-PIA01972
UID
|
|
orignial url:
|
orignial_url
orignial url
|
