Hiʻiaka

E109278

Hiʻiaka is the larger and brighter of the two known moons of the dwarf planet Haumea in the Kuiper Belt.

All labels observed (1)

Label Occurrences
Hiʻiaka canonical 5

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf astronomical object
moon of Haumea
natural satellite
albedo high
alternativeName S/2005 (2003 EL61) 1
belongsToDynamicalClass satellite of trans-Neptunian object
belongsToPlanetarySystem Haumea
surface form: Haumea system
diameter_km approximately 310
discoveredBy Chad Trujillo
surface form: Chadwick A. Trujillo

David L. Rabinowitz
Michael E. Brown
discoveredUsing W. M. Keck Observatory
discoveryAnnouncementYear 2005
discoveryDate 2005-01-26
discoveryStatus confirmed
hasApproximateDensity_g_per_cm3 about 1.0
hasDiscoveryMethod optical telescope observations
hasEponymOrigin Polynesian indigenous religions
surface form: Hawaiian mythology
hasOrbitalResonanceLike near 3:1 with Namaka
hasParentBodyType dwarf planet
hasShape roughly spherical
hasSisterMoon Namaka
hasSurface icy
isBrighterThan Namaka
isLargerThan Namaka
isMoonOf Haumea
isMoonOfDwarfPlanet Haumea
isOneOfMoonsOf Haumea
isPartOf Solar System
isTidallyLockedTo Haumea
locatedIn Kuiper Belt
meanRadius_km approximately 155
namedAfter Hiʻiaka
surface form: Hiʻiaka (Hawaiian goddess)
observedBy Hubble Space Telescope
W. M. Keck Observatory
orbitalEccentricity approximately 0.0513
orbitalInclination_degrees approximately 126.356
orbitalPeriod_days approximately 49.12
orbits Haumea
orbitsInRegion outer Solar System
trans-Neptunian region
parentBody Haumea
rotationPeriod_hours approximately 9.8
semiMajorAxis_km approximately 49880
spectralFeatures strong water-ice absorption bands
surfaceComposition water ice rich

How these facts were elicited

Referenced by (5)

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

Haumea hasMoon Hiʻiaka
Hawaiian goddess Haumea parentOf Hiʻiaka
subject surface form: Haumea
Namaka isSmallerThan Hiʻiaka
Namaka isInnerMoonRelativeTo Hiʻiaka