S/1989 N4
E506477
S/1989 N4 is the provisional designation of Galatea, one of Neptune’s inner moons discovered in 1989.
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
moon of Neptune
ⓘ
natural satellite ⓘ |
| albedo | about 0.08 ⓘ |
| alsoKnownAs | Galatea NERFINISHED ⓘ |
| belongsTo | inner Neptunian satellite group ⓘ |
| belongsToPlanetarySystem | Neptunian system NERFINISHED ⓘ |
| celestialBodyType | inner moon of Neptune ⓘ |
| controlsRingArcs | Adams ring arcs of Neptune NERFINISHED ⓘ |
| discoveredBy | Voyager 2 NERFINISHED ⓘ |
| discoverer | Voyager 2 imaging team NERFINISHED ⓘ |
| discoveryMethod | spacecraft imaging ⓘ |
| discoveryStatus | confirmed ⓘ |
| discoveryYear | 1989 ⓘ |
| eccentricity | low ⓘ |
| equatorialRadius_km | about 88 ⓘ |
| hasRingAssociation | Neptune’s Adams ring NERFINISHED ⓘ |
| IAUNameApprovalYear | 1991 ⓘ |
| inclination | low relative to Neptune’s equator ⓘ |
| meanOrbitalRadius_km | 61953 ⓘ |
| meanRadius_km | about 88 ⓘ |
| namedAfter | Galatea (sea nymph in Greek mythology) NERFINISHED ⓘ |
| observedBy | Voyager 2 NERFINISHED ⓘ |
| orbitalDirection | prograde ⓘ |
| orbitalPeriod_hours | 10.3 ⓘ |
| orbitalResonance | near 42:43 resonance with Neptune’s ring arcs ⓘ |
| orbits | Neptune NERFINISHED ⓘ |
| parentPlanet | Neptune NERFINISHED ⓘ |
| permanentName | Galatea NERFINISHED ⓘ |
| provisionalDesignation | S/1989 N4 ⓘ |
| rotationState | synchronous with Neptune ⓘ |
| semiMajorAxis_km | 61953 ⓘ |
| shape | irregular ⓘ |
| spectralType | neutral to slightly reddish ⓘ |
| surfaceColor | dark ⓘ |
| synchronousRotation | true ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.