Adrastea

E642758

Adrastea is a small inner moon of Jupiter that orbits close to the planet’s rings and helps supply them with material.

All labels observed (4)

Label Occurrences
Adrastea canonical 3
Adrastea (moon) 1
Himalia 1

How this entity was disambiguated

Statements (49)

Predicate Object
instanceOf inner moon of Jupiter
irregularly shaped body
moon of Jupiter
natural satellite
albedo low
alternativeName Jupiter XV
belongsToCountryOfDiscovery United States
belongsToGroup inner Jovian moons
belongsToPlanetarySystem Jovian system
Jupiter system
celestialBody moon
density about 0.86 g/cm³
dimensions about 20 × 16 × 14 km
discoveredBy David C. Jewitt
G. Edward Danielson
Voyager 2 imaging team
discoveredBySpacecraft Voyager 2
discoveryDate 1979
discoveryMethod spacecraft imaging
equilibriumTemperature very low
hasNoSignificantAtmosphere true
helpsSupplyMaterialTo Jupiter’s main ring
Jupiter’s ring system
IAUDesignation Jupiter XV
isCloserToJupiterThan Amalthea
isSmallerThan Amalthea
Earth’s Moon
linked to: the Moon
isTidalLockedTo Jupiter
liesWithin Jupiter’s ring region
linked to: Jovian ring system
likelyComposition water ice and rock
meanOrbitalRadius 129000 km
meanRadius about 8.2 km
namedAfter Adrasteia
namedAfterFrom Greek mythology
namedAfterRole a nymph who nursed the infant Zeus
observedBy Galileo spacecraft
Hubble Space Telescope
Voyager 2
orbitalPeriod 0.298 day
about 7.2 hours
orbits Jupiter
orbitsDirection prograde
orbitsNear Jupiter’s main ring
parentPlanet Jupiter
semiMajorAxis 129000 km
shape irregular
surfaceColor dark
surfaceEscapeVelocity very low
synchronousRotation true

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

Jovian satellite system hasMember Himalia
linked to: Adrastea
Mark R. Showalter discovered Jupiter moon Adrastea
linked to: Adrastea
Thebe innerNeighbor Adrastea
Stephen P. Synnott discovered Adrastea (moon)
linked to: Adrastea