Neptune V

E568110

Neptune V is Despina, a small inner moon of Neptune that orbits close to the planet within its ring system.

All labels observed (1)

Label Occurrences
Neptune V canonical 3

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf moon of Neptune
natural satellite
albedo low
alsoKnownAs Despina
associatedDeity Poseidon
belongsTo Neptunian satellite system
belongsToPlanetarySystem Solar System
belongsToRingRegion between Neptune’s Le Verrier and Lassell rings
designation Neptune V
diameter_km approximately 150
discoveredBy David J. Tholen
Harold J. Reitsema
Larry A. Lebofsky
Voyager 2 imaging team
William B. Hubbard
discoveredBySpacecraft Voyager 2
discoveryDate 1989-07-02
discoveryMethod spacecraft imaging
distanceFromSun_AU approximately 30
dynamicalState likely tidally evolving inward
equilibriumTemperature_K approximately 50
escapeVelocity_m_per_s approximately 70
hostPlanet Neptune
likelyComposition water ice and rock
locatedIn Neptune ring system
meanDensity_g_per_cm3 approximately 1.2
meanRadius_km approximately 75
mythologyOrigin Greek mythology
namedAfter Despina (daughter of Poseidon in Greek mythology)
namedBy International Astronomical Union
observedBy Hubble Space Telescope
Voyager 2
orbitalDirection prograde
orbitalPeriod_days approximately 0.554
orbitalPeriod_hours approximately 0.335
orbitalPosition inner moon of Neptune
orbits Neptune
orbitsInside Neptune synchronous orbit radius
orbitsWithin Neptune ring system
parentPlanetMassComparison very low mass relative to Neptune
provisionalDesignation S/1989 N3
semiMajorAxis_km approximately 52525
shape irregular
surfaceColor dark
surfaceFeatures no large craters resolved
synchronousRotation true
tidallyLockedTo Neptune

How these facts were elicited

Referenced by (3)

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

Despina IAUDesignation Neptune V
Despina alternativeName Neptune V
Neptune V designation Neptune V