Helike

E642768

Helike is a small, irregular outer moon of Jupiter belonging to the planet’s distant, retrograde satellite group.

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Statements (35)

Predicate Object
instanceOf moon of Jupiter
natural satellite
albedo low
belongsToPlanetarySystem Jovian system NERFINISHED
Solar System NERFINISHED
celestialCategory Jovian moon
outer irregular Jovian moon
color dark
discoverer David C. Jewitt NERFINISHED
Jan Kleyna NERFINISHED
Scott S. Sheppard NERFINISHED
discoveryMethod ground-based telescope observations
discoverySite Mauna Kea Observatory NERFINISHED
discoveryYear 2003
groupMembership Ananke group NERFINISHED
hasRotation yes
likelyComposition rocky-icy body
meanDiameter approximately 4 km
memberOf Jovian irregular satellites
Jupiter’s outer retrograde satellite group
namedAfter Helike (figure in Greek mythology) NERFINISHED
Helike, a nymph associated with Zeus
observedBy Subaru Telescope NERFINISHED
orbitalCharacter distant
orbitalDirection retrograde
orbitalEccentricity high
orbitalInclination about 155 degrees to the ecliptic
orbitalPeriod approximately 626 Earth days
orbits Jupiter NERFINISHED
primaryBody Jupiter NERFINISHED
provisionalDesignation S/2003 J 6 NERFINISHED
satelliteOf Jupiter NERFINISHED
semiMajorAxis approximately 20.5 million km from Jupiter
shape irregular
surfaceFeatureKnowledge poorly known

Referenced by (1)

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