S/2012 (134340) 1
E487059
S/2012 (134340) 1 is the provisional designation of Styx, the faint outer moon of the dwarf planet Pluto discovered in 2012.
All labels observed (1)
| Label | Occurrences |
|---|---|
| S/2012 (134340) 1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5007414 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: S/2012 (134340) 1 Context triple: [Styx, provisionalDesignation, S/2012 (134340) 1]
-
A.
S/2011 (134340) 1
S/2011 (134340) 1 is a small outer moon of the dwarf planet Pluto, better known by its official name Kerberos.
-
B.
S/2005 (2003 EL61) 1
S/2005 (2003 EL61) 1, officially named Hiʻiaka, is the larger and outer of the two known moons of the dwarf planet Haumea in the Kuiper Belt.
-
C.
S/24111
S/24111 is the United Nations document symbol assigned to the landmark 1992 report "An Agenda for Peace," which outlined proposals for strengthening the UN’s role in preventive diplomacy, peacemaking, and peacekeeping after the Cold War.
-
D.
S/1899 S 1
S/1899 S 1 is the provisional discovery designation originally assigned to Phoebe, one of Saturn’s irregular outer moons.
-
E.
S/2000 J 9
S/2000 J 9 is the provisional designation for Taygete, a small retrograde irregular moon of Jupiter discovered in 2000.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: S/2012 (134340) 1 Target entity description: S/2012 (134340) 1 is the provisional designation of Styx, the faint outer moon of the dwarf planet Pluto discovered in 2012.
-
A.
S/2011 (134340) 1
S/2011 (134340) 1 is a small outer moon of the dwarf planet Pluto, better known by its official name Kerberos.
-
B.
S/2005 (2003 EL61) 1
S/2005 (2003 EL61) 1, officially named Hiʻiaka, is the larger and outer of the two known moons of the dwarf planet Haumea in the Kuiper Belt.
-
C.
S/24111
S/24111 is the United Nations document symbol assigned to the landmark 1992 report "An Agenda for Peace," which outlined proposals for strengthening the UN’s role in preventive diplomacy, peacemaking, and peacekeeping after the Cold War.
-
D.
S/1899 S 1
S/1899 S 1 is the provisional discovery designation originally assigned to Phoebe, one of Saturn’s irregular outer moons.
-
E.
S/2000 J 9
S/2000 J 9 is the provisional designation for Taygete, a small retrograde irregular moon of Jupiter discovered in 2000.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
moon of Pluto ⓘ natural satellite ⓘ |
| belongsToPlanetarySystem | Pluto system NERFINISHED ⓘ |
| discoveredBy | Mark R. Showalter NERFINISHED ⓘ |
| discoveredInYear | 2012 ⓘ |
| discoveredOnDate | 2012-06-26 ⓘ |
| discoveredUsing | Hubble Space Telescope NERFINISHED ⓘ |
| hasAlbedo | approximately 0.65 ⓘ |
| hasApproximateDimensions | 16 km × 9 km × 8 km ⓘ |
| hasCentralBody | dwarf planet Pluto NERFINISHED ⓘ |
| hasDiscoveryAnnouncementDate | 2012-07-11 ⓘ |
| hasDiscoveryMethod | imaging ⓘ |
| hasIAUDesignation | Pluto V NERFINISHED ⓘ |
| hasMeanDiameter | approximately 10.4 km ⓘ |
| hasMeanRadius | approximately 5.2 km ⓘ |
| hasName | Styx NERFINISHED ⓘ |
| hasNamingTheme | underworld-related mythological figures ⓘ |
| hasOrbitalEccentricity | approximately 0.0058 ⓘ |
| hasOrbitalInclination | approximately 0.81 degrees ⓘ |
| hasOrbitalPeriod | approximately 20.16 days ⓘ |
| hasProvisionalDesignation | S/2012 (134340) 1 NERFINISHED ⓘ |
| hasRotationState | chaotic rotation ⓘ |
| hasSemiMajorAxis | approximately 42656 km ⓘ |
| hasSpectralType | neutral to slightly blue ⓘ |
| isCataloguedUnderMinorPlanetNumber | 134340 (for Pluto) ⓘ |
| isFainterThan |
Hydra
NERFINISHED
ⓘ
Kerberos NERFINISHED ⓘ Nix NERFINISHED ⓘ |
| isFaintMoonOf | Pluto NERFINISHED ⓘ |
| isGravitationallyBoundTo | Pluto–Charon system NERFINISHED ⓘ |
| isInResonanceWith | Charon (near 3:1 orbital resonance) NERFINISHED ⓘ |
| isOuterMoonOf | Pluto NERFINISHED ⓘ |
| isOuterSmallMoonOf | Pluto NERFINISHED ⓘ |
| isPartOf | Plutonian system NERFINISHED ⓘ |
| isSmallerThan |
Charon
NERFINISHED
ⓘ
Hydra NERFINISHED ⓘ Kerberos NERFINISHED ⓘ Nix NERFINISHED ⓘ |
| namedAfter | Styx (mythological river of the underworld) NERFINISHED ⓘ |
| orbits |
Pluto
NERFINISHED
ⓘ
Pluto–Charon barycenter NERFINISHED ⓘ |
| surfaceComposition | water ice rich ⓘ |
| wasImagedBy | New Horizons spacecraft NERFINISHED ⓘ |
| wasVisitedBy | New Horizons flyby of Pluto in 2015 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: S/2012 (134340) 1 Description of subject: S/2012 (134340) 1 is the provisional designation of Styx, the faint outer moon of the dwarf planet Pluto discovered in 2012.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.