Styx

E112530

Styx is a small outer moon of the dwarf planet Pluto, located between the orbits of Charon and Nix in the Pluto system.

All labels observed (1)

Label Occurrences
Styx canonical 13

How this entity was disambiguated

Statements (48)

Predicate Object
instanceOf moon of Pluto
natural satellite
outer moon
trans-Neptunian satellite
albedo high
belongsTo Pluto’s small moons
catalogIdentifier Pluto V
celestialBodyType irregularly shaped moon
dimensions_km approximately 16 × 9 × 8
discoveredBy Mark R. Showalter
Pluto Companion Search Team
discoveredUsing Hubble Space Telescope
discoveryAnnouncementAuthority International Astronomical Union
discoveryDate 2012-06-26
equilibriumState non-hydrostatic
exploredBy New Horizons spacecraft
linked to: New Horizons
flybyDate 2015-07-14
gravitationallyBoundTo Pluto–Charon system
imagedBy New Horizons LORRI camera
linked to: LORRI
inMeanMotionResonanceWith Charon
innerNeighbor Charon
inOrbitalResonanceChainWith Hydra
Kerberos
Nix
locatedIn Kuiper belt
linked to: Kuiper Belt

outer Solar System
mass_kg on the order of 7.5e15
meanMotionResonanceRatioWithCharon 3:1
meanRadius_km approximately 5.2
memberOf Pluto system
namedAfter Styx (mythological river)
linked to: River Styx

river of the underworld in Greek mythology
officialName Styx
orbitalDirection prograde
orbitalEccentricity low
orbitalInclination_degrees approximately 0.8 to Pluto’s equator
orbitalPeriod_days approximately 20.16
orbits Pluto
outerNeighbor Nix
parentBody Pluto–Charon barycenter
linked to: Pluto
positionInSystem between Charon and Nix
provisionalDesignation S/2012 (134340) 1
rotationState chaotic
semiMajorAxis_km approximately 42656
shape elongated
surfaceColor neutral to slightly bluish
surfaceGeologyKnown limited
tidallyLockedTo none

How these facts were elicited

Referenced by (13)

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