Valhalla impact structure
E682331
Valhalla impact structure is a vast, multi-ringed impact basin on Jupiter’s moon Callisto and one of the largest and most prominent impact features in the Solar System.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
impact crater
ⓘ
multi-ring impact basin ⓘ planetary surface feature ⓘ |
| albedoCharacteristic | central region is relatively bright ⓘ |
| cataloguedIn | USGS Gazetteer of Planetary Nomenclature NERFINISHED ⓘ |
| centralTerrainType | disrupted and hummocky terrain ⓘ |
| centralZoneDiameter | approximately 600 kilometers ⓘ |
| comparativePlanetologyRole | prototype for multi-ring basins on icy bodies ⓘ |
| coordinateHemisphere | northern hemisphere of Callisto ⓘ |
| diameter | approximately 3600 kilometers ⓘ |
| discoveredBy |
Voyager 1
NERFINISHED
ⓘ
Voyager 2 NERFINISHED ⓘ |
| discoveryMethod | spacecraft imaging ⓘ |
| formationProcess | large impact event ⓘ |
| geologicContext | formed in Callisto’s icy lithosphere ⓘ |
| hasFeature |
bright central zone
ⓘ
concentric rings ⓘ radial fractures ⓘ |
| hasMorphology | multi-ring ⓘ |
| hostBody | Callisto NERFINISHED ⓘ |
| impactEnergyImplication | formed by extremely energetic collision ⓘ |
| impactTargetComposition | water-ice rich crust ⓘ |
| isOnMoonOf | Jupiter NERFINISHED ⓘ |
| locatedIn |
Jupiter system
NERFINISHED
ⓘ
outer Solar System ⓘ |
| locatedOn | Callisto NERFINISHED ⓘ |
| namedAfter | Valhalla NERFINISHED ⓘ |
| nameOrigin | Valhalla, the hall of the slain in Norse mythology NERFINISHED ⓘ |
| observedBy |
Galileo spacecraft
NERFINISHED
ⓘ
Voyager 1 NERFINISHED ⓘ Voyager 2 NERFINISHED ⓘ |
| orbitsWithHostBody | Jupiter NERFINISHED ⓘ |
| outerTerrainEffect | associated with tectonic lineaments on Callisto ⓘ |
| relativeProminence | most prominent multi-ring basin on Callisto ⓘ |
| relativeSize | one of the largest impact structures in the Solar System ⓘ |
| researchTopic |
Callisto lithospheric thickness and rheology
ⓘ
multi-ring basin formation models ⓘ |
| ringContinuity | rings are discontinuous in places ⓘ |
| ringCount | dozens of concentric rings ⓘ |
| ringExtent | extends over much of Callisto’s northern hemisphere ⓘ |
| ringFormationMechanism |
concentric fracturing of lithosphere
ⓘ
relaxation of impact basin ⓘ |
| ringOrientation | roughly concentric around central bright region ⓘ |
| ringSpacing | rings become more widely spaced with distance from center ⓘ |
| scientificSignificance |
key constraint on Callisto’s internal structure
ⓘ
used to study impact processes in icy satellites ⓘ |
| surfaceAge | ancient ⓘ |
| surfaceType | heavily cratered icy terrain ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.