S/1989 N4

E506477

S/1989 N4 is the provisional designation of Galatea, one of Neptune’s inner moons discovered in 1989.

All labels observed (2)

Label Occurrences
S/1989 N 4 1
S/1989 N4 canonical 1

How this entity was disambiguated

Statements (35)

Predicate Object
instanceOf moon of Neptune ⓘ
natural satellite ⓘ
albedo about 0.08 ⓘ
alsoKnownAs Galatea ⓘ
belongsTo inner Neptunian satellite group ⓘ
belongsToPlanetarySystem Neptunian system ⓘ
linked to: Neptune system
celestialBodyType inner moon of Neptune ⓘ
controlsRingArcs Adams ring arcs of Neptune ⓘ
linked to: Neptune ring arcs
discoveredBy Voyager 2 ⓘ
discoverer Voyager 2 imaging team ⓘ
discoveryMethod spacecraft imaging ⓘ
discoveryStatus confirmed ⓘ
discoveryYear 1989 ⓘ
eccentricity low ⓘ
equatorialRadius_km about 88 ⓘ
hasRingAssociation Neptune’s Adams ring ⓘ
IAUNameApprovalYear 1991 ⓘ
inclination low relative to Neptune’s equator ⓘ
meanOrbitalRadius_km 61953 ⓘ
meanRadius_km about 88 ⓘ
namedAfter Galatea (sea nymph in Greek mythology) ⓘ
linked to: Galatea (sea nymph)
observedBy Voyager 2 ⓘ
orbitalDirection prograde ⓘ
orbitalPeriod_hours 10.3 ⓘ
orbitalResonance near 42:43 resonance with Neptune’s ring arcs ⓘ
orbits Neptune ⓘ
parentPlanet Neptune ⓘ
permanentName Galatea ⓘ
provisionalDesignation S/1989 N4 ⓘ
rotationState synchronous with Neptune ⓘ
semiMajorAxis_km 61953 ⓘ
shape irregular ⓘ
spectralType neutral to slightly reddish ⓘ
surfaceColor dark ⓘ
synchronousRotation true ⓘ

How these facts were elicited

Referenced by (2)

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

Galatea → catalogDesignation → S/1989 N4 ⓘ
Neptune VI → provisionalDesignation → S/1989 N 4 ⓘ
linked to: S/1989 N4