NGC 2232
E558280
NGC 2232 is an open star cluster located in the constellation Monoceros, notable for its relatively young, bright stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 2232 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775488 — 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 2232 Context triple: [Monoceros, contains, NGC 2232]
-
A.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
-
B.
NGC 2207
NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
-
C.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
-
D.
NGC 2301
NGC 2301 is a bright open star cluster located in the constellation Monoceros, known for its rich population of young, blue stars.
-
E.
NGC 2246
NGC 2246 is a catalog designation for a bright emission region within the Rosette Nebula, a large star-forming complex in the constellation Monoceros.
- 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 2232 Target entity description: NGC 2232 is an open star cluster located in the constellation Monoceros, notable for its relatively young, bright stars.
-
A.
NGC 221
NGC 221 is a compact dwarf elliptical galaxy in the Local Group, best known as the bright satellite galaxy M32 orbiting the Andromeda Galaxy.
-
B.
NGC 2207
NGC 2207 is a large spiral galaxy in the constellation Canis Major, notable for its dramatic gravitational interaction and ongoing collision with the nearby galaxy IC 2163.
-
C.
NGC 224
NGC 224 is the Andromeda Galaxy, a massive spiral galaxy and the closest major galactic neighbor to the Milky Way.
-
D.
NGC 2301
NGC 2301 is a bright open star cluster located in the constellation Monoceros, known for its rich population of young, blue stars.
-
E.
NGC 2246
NGC 2246 is a catalog designation for a bright emission region within the Rosette Nebula, a large star-forming complex in the constellation Monoceros.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | open star cluster ⓘ |
| age | ~25 million years ⓘ |
| angularSize | ~30 arcminutes ⓘ |
| apparentMagnitudeV | ~3.9 ⓘ |
| bestSeenFrom | Northern Hemisphere ⓘ |
| bestSeenInMonth | January ⓘ |
| catalog | New General Catalogue ⓘ |
| clusterType | loose open cluster ⓘ |
| constellation | Monoceros ⓘ |
| contains |
bright stars
ⓘ
main-sequence stars ⓘ pre-main-sequence stars ⓘ young stars ⓘ |
| declination | −04° 45′ ⓘ |
| discoveredBy | William Herschel ⓘ |
| discoveryDate | 1784 ⓘ |
| distanceFromEarth |
~1170 light-years
ⓘ
~360 pc ⓘ |
| dominantSpectralTypes |
A-type stars
ⓘ
B-type stars ⓘ |
| evolutionaryStatus | young open cluster ⓘ |
| galacticLatitude | ~−7° ⓘ |
| galacticLongitude | ~214° ⓘ |
| has |
bright naked-eye stars associated with cluster field
ⓘ
common proper motion of member stars ⓘ low interstellar extinction ⓘ sparse central concentration ⓘ well-defined main sequence in color–magnitude diagram ⓘ |
| hasColorExcess | low reddening ⓘ |
| hasMemberStar | 10 Monocerotis ⓘ |
| isIn | Galactic disk ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm ⓘ |
| memberCount | dozens of confirmed members ⓘ |
| metallicity | near-solar ⓘ |
| nearbyConstellation |
Canis Major
ⓘ
Orion ⓘ |
| observationalClass | Trumpler class III 3 m ⓘ |
| observedBy |
Gaia spacecraft
ⓘ
linked to:
Gaia observatory
Hipparcos satellite ⓘ |
| otherDesignation |
Collinder 93
ⓘ
Melotte 50 ⓘ |
| rightAscension | 06h 26m ⓘ |
| usedFor |
studies of stellar evolution
ⓘ
studies of young stellar populations ⓘ |
| visibleIn | optical wavelengths ⓘ |
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 2232 Description of subject: NGC 2232 is an open star cluster located in the constellation Monoceros, notable for its relatively young, bright stars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.