Collinder 228
E290081
Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Collinder 228 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2706375 — 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: Collinder 228 Context triple: [Carina Nebula, contains, Collinder 228]
-
A.
Melotte 22
Melotte 22 is an open star cluster in the constellation Taurus, more commonly known as the Pleiades or Seven Sisters, famed for its bright, blue-hot stars and visibility to the naked eye.
-
B.
Messier 22
Messier 22 is a bright globular star cluster located near the center of the Milky Way, visible in the constellation Sagittarius and notable for being one of the closest and most easily observed clusters of its kind.
-
C.
Messier 20
Messier 20, also known as the Trifid Nebula, is a bright, star-forming emission and reflection nebula famous for its striking three-lobed appearance.
-
D.
Messier 28
Messier 28 is a dense globular star cluster located in the constellation Sagittarius, composed of hundreds of thousands of ancient stars.
-
E.
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.
- 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: Collinder 228 Target entity description: Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
-
A.
Melotte 22
Melotte 22 is an open star cluster in the constellation Taurus, more commonly known as the Pleiades or Seven Sisters, famed for its bright, blue-hot stars and visibility to the naked eye.
-
B.
Messier 22
Messier 22 is a bright globular star cluster located near the center of the Milky Way, visible in the constellation Sagittarius and notable for being one of the closest and most easily observed clusters of its kind.
-
C.
Messier 20
Messier 20, also known as the Trifid Nebula, is a bright, star-forming emission and reflection nebula famous for its striking three-lobed appearance.
-
D.
Messier 28
Messier 28 is a dense globular star cluster located in the constellation Sagittarius, composed of hundreds of thousands of ancient stars.
-
E.
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.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
open star cluster ⓘ |
| associatedWith | massive star formation ⓘ |
| catalogue | Collinder catalogue of open clusters ⓘ |
| catalogueType | open cluster catalogue entry ⓘ |
| contains |
OB-type stars
ⓘ
ionizing stars of Carina Nebula ⓘ |
| contributesTo |
illumination of Carina Nebula
ⓘ
shaping of surrounding gas and dust ⓘ |
| distanceFromEarth |
approximately 2300 parsecs
ⓘ
approximately 7500 light-years ⓘ |
| embeddedIn | Carina Nebula ⓘ |
| hasAge | few million years ⓘ |
| hasAlternateName | Cr 228 ⓘ |
| hasAstrophysicalRole |
ionization source for surrounding nebula
ⓘ
tracer of recent star formation ⓘ |
| hasEnvironment |
dust-rich nebular region
ⓘ
gas-rich nebular region ⓘ |
| hasStellarPopulation |
massive stars
ⓘ
young stars ⓘ |
| isIn | southern sky ⓘ |
| isPartOf |
Milky Way
ⓘ
surface form:
Milky Way Galaxy
|
| locatedIn | Carina Nebula ⓘ |
| locatedInConstellation | Carina ⓘ |
| locatedInGalacticQuadrant |
Sagittarius Arm
ⓘ
surface form:
Carina–Sagittarius Arm
|
| namedAfter | Per Collinder ⓘ |
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ |
| partOf |
Carina Nebula
ⓘ
surface form:
Carina star-forming complex
|
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: Collinder 228 Description of subject: Collinder 228 is an open star cluster embedded in the Carina Nebula, notable for its young, massive stars that help illuminate and shape the surrounding gas and dust.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Carina