Metis
E642757
Metis is a small inner moon of Jupiter that orbits close to the planet and helps supply material to its main ring.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Metis canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7099919 — 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: Metis Context triple: [Jovian satellite system, hasMember, Metis]
-
A.
Metis
Metis is a Titaness in Greek mythology associated with wisdom and cunning, best known as the mother of Athena.
-
B.
Kaska
Kaska is an Athabaskan Indigenous language traditionally spoken by the Kaska Dena people of northern Canada, primarily in the Yukon and northern British Columbia.
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C.
Iolkos
Iolkos was an ancient city in Thessaly, Greece, traditionally known as the homeland of Jason and the starting point of the Argonauts’ voyage in Greek mythology.
-
D.
Ainos
Ainos was a medieval port city and strategic stronghold on the northern Aegean coast, historically contested by Byzantine, Genoese, and Ottoman powers.
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E.
Hyllus
Hyllus is a figure in Greek mythology known as the son of Heracles and Deianira, often associated with the Dorian invasion and the Heracleidae.
- 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: Metis Target entity description: Metis is a small inner moon of Jupiter that orbits close to the planet and helps supply material to its main ring.
-
A.
Metis
Metis is a Titaness in Greek mythology associated with wisdom and cunning, best known as the mother of Athena.
-
B.
Kaska
Kaska is an Athabaskan Indigenous language traditionally spoken by the Kaska Dena people of northern Canada, primarily in the Yukon and northern British Columbia.
-
C.
Iolkos
Iolkos was an ancient city in Thessaly, Greece, traditionally known as the homeland of Jason and the starting point of the Argonauts’ voyage in Greek mythology.
-
D.
Ainos
Ainos was a medieval port city and strategic stronghold on the northern Aegean coast, historically contested by Byzantine, Genoese, and Ottoman powers.
-
E.
Hyllus
Hyllus is a figure in Greek mythology known as the son of Heracles and Deianira, often associated with the Dorian invasion and the Heracleidae.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
inner moon
ⓘ
moon of Jupiter ⓘ natural satellite ⓘ |
| albedo | 0.061 ⓘ |
| alternativeName |
Jupiter 16
NERFINISHED
ⓘ
S/1979 J 3 NERFINISHED ⓘ |
| approximateDimensions_km | 60×40×34 ⓘ |
| approximateMeanRadius_km | 21.5 ⓘ |
| associatedRing | Jupiter main ring NERFINISHED ⓘ |
| belongsToPlanet | Jupiter NERFINISHED ⓘ |
| belongsToPlanetarySystem |
Jovian system
NERFINISHED
ⓘ
Jupiter system NERFINISHED ⓘ |
| celestialBodyType | moon ⓘ |
| discoveredBy |
Stephen P. Synnott
NERFINISHED
ⓘ
Voyager 1 imaging team NERFINISHED ⓘ |
| discoveryDate | 1979-03-04 ⓘ |
| discoveryMission | Voyager 1 NERFINISHED ⓘ |
| distanceFromJupiterCloudTops_km | ~1000 above main ring plane ⓘ |
| equilibriumTemperature_K | ~120 ⓘ |
| escapeVelocity_km_s | 0.016 ⓘ |
| helpsSupplyMaterialTo | Jupiter main ring NERFINISHED ⓘ |
| IAUDesignation | Jupiter XVI NERFINISHED ⓘ |
| imagedBy |
Galileo spacecraft
NERFINISHED
ⓘ
Voyager 1 NERFINISHED ⓘ |
| isInnerTo | Jupiter main ring NERFINISHED ⓘ |
| locationRegion | within Jupiter main ring ⓘ |
| meanDensity_g_cm3 | ~2.7 ⓘ |
| meanOrbitalRadius_km | 128000 ⓘ |
| namedAfter |
Metis (Greek mythological Titaness)
NERFINISHED
ⓘ
Metis, first wife of Zeus NERFINISHED ⓘ |
| namingApprovedBy | IAU NERFINISHED ⓘ |
| namingYear | 1983 ⓘ |
| orbitalDirection | prograde ⓘ |
| orbitalEccentricity | 0.0002 ⓘ |
| orbitalInclination_degrees | 0.06 ⓘ |
| orbitalPeriod_hours | 7.1 ⓘ |
| orbits | Jupiter NERFINISHED ⓘ |
| parentPlanet | Jupiter NERFINISHED ⓘ |
| partOf | Jupiter ring–moon system NERFINISHED ⓘ |
| roleInRingSystem | source of dust for main ring ⓘ |
| rotationPeriod_hours | 7.1 ⓘ |
| semiMajorAxis_km | 128000 ⓘ |
| shape | irregular ⓘ |
| spectralType | dark, likely non-icy ⓘ |
| surfaceComposition | likely rocky with dark material ⓘ |
| surfaceGravity_m_s2 | 0.008 ⓘ |
| synchronousRotation | true ⓘ |
| tidallyLockedTo | Jupiter NERFINISHED ⓘ |
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: Metis Description of subject: Metis is a small inner moon of Jupiter that orbits close to the planet and helps supply material to its main ring.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.