Larissa

E154214

Larissa is one of Neptune’s small, irregularly shaped inner moons, discovered in 1981 and composed primarily of dark, icy material.

All labels observed (1)

Label Occurrences
Larissa canonical 7

How this entity was disambiguated

Statements (45)

Predicate Object
instanceOf inner moon ⓘ
moon of Neptune ⓘ
natural satellite ⓘ
albedo low ⓘ
alternativeName Neptune VII ⓘ
belongsTo Neptunian moons ⓘ
belongsToPlanetarySystem Neptune system ⓘ
catalogDesignation S/1981 N 1 ⓘ
celestialBodyType irregularly shaped moon ⓘ
confirmationYear 1989 ⓘ
confirmedBy Voyager 2 ⓘ
dimensions_km 216 × 204 × 166 ⓘ
discoveredBy David J. Tholen ⓘ
Harold J. Reitsema ⓘ
Larry A. Lebofsky ⓘ
William B. Hubbard NERFINISHED ⓘ
discoveredWith ground-based telescope ⓘ
discoveryDate 1981-05-24 ⓘ
discoveryLocation Earth-based observatories ⓘ
discoveryMethod stellar occultation ⓘ
discoveryYear 1981 ⓘ
equilibriumTemperature_K about 51 ⓘ
escapeVelocity_km_per_s 0.16 ⓘ
hasNoAtmosphere true ⓘ
IAUDesignation Neptune VII ⓘ
isTidallyLockedTo Neptune ⓘ
meanDensity_g_per_cm3 about 1.2 ⓘ
meanOrbitalRadiusFromNeptune_km 73548 ⓘ
meanRadius_km 97 ⓘ
namedAfter Larissa (figure in Greek mythology) ⓘ
orbitalEccentricity 0.0014 ⓘ
orbitalInclination_degrees 0.205 ⓘ
orbitalMotion prograde ⓘ
orbitalPeriod_days 0.554654 ⓘ
orbits Neptune ⓘ
parentPlanetMassComparison very small compared to Neptune ⓘ
primary Neptune ⓘ
relativePositionInSystem inner regular satellite of Neptune ⓘ
rotation synchronous with its orbital period ⓘ
semiMajorAxis_km 73548 ⓘ
shape irregular ⓘ
surfaceColor dark ⓘ
surfaceComposition dark icy material ⓘ
surfaceFeature heavily cratered ⓘ
synchronousRotator true ⓘ

How these facts were elicited

Referenced by (7)

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

Neptune → moon → Larissa ⓘ
Galatea → neighboringMoons → Larissa ⓘ
Neptune system → hasMoon → Larissa ⓘ
Neptune VII → alsoKnownAs → Larissa ⓘ
Neptune VII → IAUName → Larissa ⓘ