S/2011 (134340) 1
E481637
S/2011 (134340) 1 is a small outer moon of the dwarf planet Pluto, better known by its official name Kerberos.
All labels observed (1)
| Label | Occurrences |
|---|---|
| S/2011 (134340) 1 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943338 — 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/2011 (134340) 1 Context triple: [Kerberos, alternativeName, S/2011 (134340) 1]
-
A.
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.
-
B.
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.
-
C.
S/2000 J 9
S/2000 J 9 is the provisional designation for Taygete, a small retrograde irregular moon of Jupiter discovered in 2000.
-
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.
Telesto
Telesto is a small Trojan moon of Saturn that shares Tethys’s orbit, residing at one of its stable Lagrange points.
- 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/2011 (134340) 1 Target entity description: S/2011 (134340) 1 is a small outer moon of the dwarf planet Pluto, better known by its official name Kerberos.
-
A.
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.
-
B.
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.
-
C.
S/2000 J 9
S/2000 J 9 is the provisional designation for Taygete, a small retrograde irregular moon of Jupiter discovered in 2000.
-
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.
Telesto
Telesto is a small Trojan moon of Saturn that shares Tethys’s orbit, residing at one of its stable Lagrange points.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
moon of Pluto
ⓘ
natural satellite ⓘ |
| albedo | high ⓘ |
| alternativeDesignation | Pluto IV ⓘ |
| alternativeName | Kerberos ⓘ |
| associatedWith |
dwarf planet Pluto
ⓘ
linked to:
Pluto
|
| belongsTo |
Kuiper belt
ⓘ
linked to:
Kuiper Belt
|
| belongsToCategory | outer moon of Pluto ⓘ |
| dimensions | approximately 12 km × 4.5 km ⓘ |
| discoveredBy |
Mark R. Showalter
ⓘ
Pluto Companion Search Team ⓘ |
| discoveredWith | Hubble Space Telescope ⓘ |
| discoveryDate | 2011-06-28 ⓘ |
| discoveryFacility | Hubble Space Telescope ⓘ |
| discoveryLocation | Earth orbit ⓘ |
| discoveryMethod | Hubble Space Telescope imaging ⓘ |
| eccentricity | low orbital eccentricity ⓘ |
| exploredBy |
New Horizons spacecraft
ⓘ
linked to:
New Horizons
|
| flybyDate | 2015-07-14 ⓘ |
| governingBodyForName | International Astronomical Union ⓘ |
| hasNumberOfKnownMoonsInSystem | one of five known moons of Pluto ⓘ |
| imagedBy |
New Horizons LORRI camera
ⓘ
linked to:
LORRI
|
| inclination | small inclination relative to Pluto’s equator ⓘ |
| meanRadius | approximately 6 km ⓘ |
| memberOf | Pluto system ⓘ |
| nameApprovalDate | 2013-07-02 ⓘ |
| namedAfter |
Cerberus
ⓘ
mythological three-headed dog guarding the underworld ⓘ |
| officialName | Kerberos ⓘ |
| orbitalPeriod | approximately 32.1 days ⓘ |
| orbitalResonance |
near 1:4 resonance with Nix
ⓘ
near 1:5 resonance with Charon ⓘ near 1:6 resonance with Hydra ⓘ |
| orbits | Pluto ⓘ |
| otherMoonsInSystem |
Charon
ⓘ
Hydra ⓘ Nix ⓘ Styx ⓘ |
| parentBody | Pluto ⓘ |
| provisionalDesignation | S/2011 (134340) 1 ⓘ |
| relativePosition | orbits between Nix and Hydra ⓘ |
| rotation | non-synchronous with its orbital period ⓘ |
| rotationState | chaotic rotation ⓘ |
| semiMajorAxis | approximately 57,800 km from Pluto ⓘ |
| shape | irregular ⓘ |
| surfaceColor | neutral to slightly gray ⓘ |
| surfaceComposition | water ice (inferred) ⓘ |
| system | Pluto–Charon system ⓘ |
| systemType | circumbinary satellite of Pluto–Charon barycenter ⓘ |
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/2011 (134340) 1 Description of subject: S/2011 (134340) 1 is a small outer moon of the dwarf planet Pluto, better known by its official name Kerberos.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.