R136a1
E505773
R136a1 is an extremely massive and luminous Wolf–Rayet star in the Large Magellanic Cloud, considered one of the most massive stars known.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T5225869 — 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: R136a1 Context triple: [30 Doradus, contains, R136a1]
-
A.
Baade’s star
Baade’s star is a luminous, variable star in the Andromeda Galaxy notable for its role in Walter Baade’s work refining the cosmic distance scale.
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B.
Eta Carinae
Eta Carinae is a highly luminous and unstable massive stellar system in the constellation Carina, famous for its 19th-century "Great Eruption" and its surrounding Homunculus Nebula.
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C.
30 Doradus
30 Doradus, also known as the Tarantula Nebula, is a vast and intensely active star-forming region and emission nebula in the Large Magellanic Cloud.
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D.
Betelgeuse
Betelgeuse is a massive red supergiant star in the constellation Orion, notable for its brightness and status as a likely future supernova.
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E.
R Doradus
R Doradus is a nearby, very large and luminous red giant Mira-type variable star located in the southern constellation Dorado.
- 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: R136a1 Target entity description: R136a1 is an extremely massive and luminous Wolf–Rayet star in the Large Magellanic Cloud, considered one of the most massive stars known.
-
A.
Baade’s star
Baade’s star is a luminous, variable star in the Andromeda Galaxy notable for its role in Walter Baade’s work refining the cosmic distance scale.
-
B.
Eta Carinae
Eta Carinae is a highly luminous and unstable massive stellar system in the constellation Carina, famous for its 19th-century "Great Eruption" and its surrounding Homunculus Nebula.
-
C.
30 Doradus
30 Doradus, also known as the Tarantula Nebula, is a vast and intensely active star-forming region and emission nebula in the Large Magellanic Cloud.
-
D.
Betelgeuse
Betelgeuse is a massive red supergiant star in the constellation Orion, notable for its brightness and status as a likely future supernova.
-
E.
R Doradus
R Doradus is a nearby, very large and luminous red giant Mira-type variable star located in the southern constellation Dorado.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Wolf–Rayet star
ⓘ
luminous blue star ⓘ massive star ⓘ star ⓘ |
| age | about 1–2 million years (very young) ⓘ |
| belongsTo | Local Group ⓘ |
| coordinateSystem | equatorial coordinates (J2000) ⓘ |
| declination | −69° 06′ (approximate) ⓘ |
| discoveredBy | astronomers studying 30 Doradus region ⓘ |
| distanceFromEarth |
about 160000 light-years
ⓘ
about 49 kiloparsecs ⓘ |
| effectiveTemperature | over 40000 K (approximate) ⓘ |
| emits | strong ultraviolet radiation ⓘ |
| evolutionaryStage |
Wolf–Rayet phase
ⓘ
core hydrogen-burning ⓘ |
| expectedFate |
core-collapse supernova or hypernova
ⓘ
possible black hole remnant ⓘ |
| formationEnvironment | massive star-forming region ⓘ |
| galaxy | Large Magellanic Cloud ⓘ |
| hasProperty |
extreme mass loss via stellar winds
ⓘ
hydrogen-rich Wolf–Rayet spectrum ⓘ short expected lifetime ⓘ strong stellar winds ⓘ very high ionizing radiation output ⓘ |
| hostGalaxyType | irregular dwarf galaxy (LMC) ⓘ |
| influences |
feedback in R136 star cluster
ⓘ
ionization of gas in Tarantula Nebula ⓘ |
| knownFor |
being one of the most massive stars known
ⓘ
extreme luminosity ⓘ testing upper mass limit of stars ⓘ |
| locatedIn |
Large Magellanic Cloud
ⓘ
R136 star cluster ⓘ
linked to:
30 Doradus
Tarantula Nebula ⓘ constellation Dorado ⓘ |
| luminosity |
among the most luminous known stars
ⓘ
over 1 million times solar luminosity ⓘ |
| mass |
one of the most massive known stars
ⓘ
over 150 solar masses (estimated) ⓘ |
| memberOf | R136 ⓘ |
| metallicity | sub-solar (LMC metallicity) ⓘ |
| observedWith |
Hubble Space Telescope
ⓘ
Very Large Telescope ⓘ adaptive optics imaging ⓘ |
| partOf |
30 Doradus region
ⓘ
linked to:
30 Doradus
Milky Way satellite galaxy system ⓘ
linked to:
Milky Way satellite galaxies
|
| rightAscension | 05h 38m (approximate) ⓘ |
| rotation | rapid stellar rotation (inferred) ⓘ |
| spectralClass |
Wolf–Rayet WN
ⓘ
linked to:
Wolf–Rayet stars
|
| spectralType | WN5h ⓘ |
| surfaceTemperature | extremely hot ⓘ |
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: R136a1 Description of subject: R136a1 is an extremely massive and luminous Wolf–Rayet star in the Large Magellanic Cloud, considered one of the most massive stars known.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: R136a1