NGC 346
E127038
NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
All labels observed (4)
| Label | Occurrences |
|---|---|
| NGC 346 canonical | 4 |
| NGC 346 region | 1 |
| central cluster NGC 346 | 1 |
| star cluster NGC 346 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T967498 — 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: NGC 346 Context triple: [Small Magellanic Cloud, contains, NGC 346]
-
A.
NGC 604
NGC 604 is a vast, luminous star-forming nebula in the Triangulum Galaxy, notable as one of the largest known H II regions in the Local Group.
-
B.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
-
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.
Messier 17
Messier 17, also known as the Omega or Swan Nebula, is a bright star-forming emission nebula located in the constellation Sagittarius.
-
E.
NGC 205
NGC 205 is a dwarf elliptical satellite galaxy of the Andromeda Galaxy, notable for its proximity to the Local Group’s largest spiral and its mixed old and young stellar populations.
- 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: NGC 346 Target entity description: NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
-
A.
NGC 604
NGC 604 is a vast, luminous star-forming nebula in the Triangulum Galaxy, notable as one of the largest known H II regions in the Local Group.
-
B.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
-
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.
Messier 17
Messier 17, also known as the Omega or Swan Nebula, is a bright star-forming emission nebula located in the constellation Sagittarius.
-
E.
NGC 205
NGC 205 is a dwarf elliptical satellite galaxy of the Andromeda Galaxy, notable for its proximity to the Local Group’s largest spiral and its mixed old and young stellar populations.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
emission nebula ⓘ open star cluster ⓘ star-forming region ⓘ |
| age | a few million years ⓘ |
| angularSize | about 5 arcminutes ⓘ |
| apparentMagnitudeV | about 9 ⓘ |
| catalog | New General Catalogue ⓘ |
| contains |
OB stars
ⓘ
X-ray emitting hot gas ⓘ dust lanes ⓘ embedded protostars ⓘ molecular clouds ⓘ pre-main-sequence stars ⓘ stellar association NGC 346 OB association ⓘ young massive stars ⓘ |
| discoveredBy | James Dunlop ⓘ |
| discoveryYear | 1826 ⓘ |
| distanceFromEarth |
approximately 200000 light-years
ⓘ
approximately 61 kiloparsecs ⓘ |
| environment | bar region of the Small Magellanic Cloud ⓘ |
| galaxyTypeOfHost | dwarf irregular galaxy ⓘ |
| hasProperty |
clustered and distributed star formation
ⓘ
low metallicity environment ⓘ one of the most active star-forming regions in the Small Magellanic Cloud ⓘ rich in ionized gas ⓘ strong ultraviolet radiation field ⓘ |
| hostGalaxy | Small Magellanic Cloud ⓘ |
| locatedIn |
Small Magellanic Cloud
ⓘ
constellation Tucana ⓘ |
| nebularEmission |
H-alpha
ⓘ
[O III] ⓘ |
| notableFor |
complex nebular structures
ⓘ
intense star formation ⓘ massive stellar feedback ⓘ pillars and filaments of gas and dust ⓘ |
| observedBy |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ Spitzer Space Telescope ⓘ Very Large Telescope ⓘ |
| otherDesignation | NGC 371 (associated region) ⓘ |
| partOf | Milky Way satellite galaxy system ⓘ |
| regionType | giant star-forming complex ⓘ |
| usedForStudyOf |
feedback from massive stars
ⓘ
initial mass function in dwarf galaxies ⓘ massive star formation ⓘ stellar evolution at low metallicity ⓘ triggered star formation ⓘ |
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: NGC 346 Description of subject: NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tucana
subject surface form:
N66
this entity surface form:
NGC 346 region
subject surface form:
N66
subject surface form:
N66
subject surface form:
N66
this entity surface form:
central cluster NGC 346