Neptune VII
E615681
Neptune VII is Larissa, a small inner moon of Neptune characterized by its irregular shape and heavily cratered surface.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
moon of Neptune
ⓘ
natural satellite ⓘ |
| albedo | low ⓘ |
| alsoKnownAs | Larissa NERFINISHED ⓘ |
| belongsToPlanetarySystem | Neptune system ⓘ |
| belongsToRingRegion | Adams ring region NERFINISHED ⓘ |
| catalogIn | Natural satellites of Neptune list ⓘ |
| discoveredBy |
David J. Tholen
NERFINISHED
ⓘ
Harold J. Reitsema NERFINISHED ⓘ Larry A. Lebofsky NERFINISHED ⓘ William B. Hubbard NERFINISHED ⓘ |
| discoveryMethod | stellar occultation ⓘ |
| discoveryStatus | confirmed moon of Neptune ⓘ |
| discoveryYear | 1981 ⓘ |
| equilibriumTemperature_K | ~51 ⓘ |
| escapeVelocity_m_per_s | ~90 ⓘ |
| gravitationallyBoundTo | Neptune NERFINISHED ⓘ |
| hasAxialTiltData | poorly constrained ⓘ |
| hasNoSignificantAtmosphere | true ⓘ |
| hostPlanet | Neptune NERFINISHED ⓘ |
| IAUDesignation | Neptune VII NERFINISHED ⓘ |
| IAUName | Larissa NERFINISHED ⓘ |
| meanDensity_g_per_cm3 | ~1.2 ⓘ |
| meanDiameter_km | ~194 ⓘ |
| meanRadius_km | ~97 ⓘ |
| namedAfter | Larissa (figure in Greek mythology) NERFINISHED ⓘ |
| observedBy | Voyager 2 spacecraft NERFINISHED ⓘ |
| orbitalDirection | prograde ⓘ |
| orbitalFamily | inner moons of Neptune ⓘ |
| orbitalPeriod_days | ~0.554654 ⓘ |
| orbits | Neptune NERFINISHED ⓘ |
| primaryBodyType | ice-rich body ⓘ |
| rediscoveredBy | Voyager 2 NERFINISHED ⓘ |
| 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 NERFINISHED ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.