Neptune VII

E615681

Neptune VII is Larissa, a small inner moon of Neptune characterized by its irregular shape and heavily cratered surface.

All labels observed (2)

Label Occurrences
Neptune VII canonical 3
Neptune III 1

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf moon of Neptune
natural satellite
albedo low
alsoKnownAs Larissa
belongsToPlanetarySystem Neptune system
belongsToRingRegion Adams ring region
linked to: Adams ring
catalogIn Natural satellites of Neptune list
discoveredBy David J. Tholen
Harold J. Reitsema
Larry A. Lebofsky
William B. Hubbard
discoveryMethod stellar occultation
discoveryStatus confirmed moon of Neptune
discoveryYear 1981
equilibriumTemperature_K ~51
escapeVelocity_m_per_s ~90
gravitationallyBoundTo Neptune
hasAxialTiltData poorly constrained
hasNoSignificantAtmosphere true
hostPlanet Neptune
IAUDesignation Neptune VII
IAUName Larissa
meanDensity_g_per_cm3 ~1.2
meanDiameter_km ~194
meanRadius_km ~97
namedAfter Larissa (figure in Greek mythology)
observedBy Voyager 2 spacecraft
linked to: Voyager 2
orbitalDirection prograde
orbitalFamily inner moons of Neptune
orbitalPeriod_days ~0.554654
orbits Neptune
primaryBodyType ice-rich body
rediscoveredBy Voyager 2
rediscoveryYear 1989
relativePosition inner moon of Neptune
orbits between Despina and Proteus
rotationState synchronous rotation
semiMajorAxis_km ~73548
shape irregular
surfaceCharacteristic heavily cratered
surfaceComposition dark, possibly carbon-rich material
water ice
surfaceFeature lack of large tectonic features
numerous impact craters
surfaceGeologyKnowledge limited to Voyager 2 imaging
tidallyLockedTo Neptune

How these facts were elicited

Referenced by (4)

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

Larissa alternativeName Neptune VII
Larissa IAUDesignation Neptune VII
S/1989 N 6 hasIAUDesignation Neptune III
linked to: Neptune VII
Neptune VII IAUDesignation Neptune VII