Concentric Rings Surrounding Valhalla
Caption:
The concentric rings surrounding Valhalla are perhaps the most distinctive geological feature on Callisto. This Voyager 1 close-up shows a segment of the ridged terrain. The presence of superimpact craters shows that the rings formed early in Callisto's history; however, the density of craters is less here than on other parts of the satellite, where the surface is older.
Cataloging Keywords:
Name |
Value |
Additional Values |
Target |
Callisto |
|
System |
Jupiter |
|
Target Type |
Satellite |
|
Mission |
Voyager |
|
Instrument Host |
Cassini Orbiter |
Voyager 1 |
Host Type |
Orbiter |
Flyby Spacecraft |
Instrument |
Imaging Science Subsystem (ISS) |
|
Detector |
|
|
Extra Keywords |
Crater, Grayscale, Impact |
Acquisition Date |
|
Release Date |
1997-01-09 |
Date in Caption |
|
|
Image Credit |
NASA/JPL |
Source |
photojournal.jpl.nasa.gov/catalog/PIA00484 |
Identifier |
PIA00484 |