NGC 2244
E554483
NGC 2244 is a young open star cluster embedded in the Rosette Nebula, located in the constellation Monoceros.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NGC 2244 canonical | 5 |
| open cluster NGC 2244 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775481 — 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 2244 Context triple: [Monoceros, contains, NGC 2244]
-
A.
NGC 2239
NGC 2239 is an open star cluster located in the constellation Monoceros, often associated with the Rosette Nebula region.
-
B.
NGC 2024
NGC 2024, also known as the Flame Nebula, is a bright emission nebula and active star-forming region located in the constellation Orion near the Horsehead Nebula.
-
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 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.
-
E.
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.
- 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 2244 Target entity description: NGC 2244 is a young open star cluster embedded in the Rosette Nebula, located in the constellation Monoceros.
-
A.
NGC 2239
NGC 2239 is an open star cluster located in the constellation Monoceros, often associated with the Rosette Nebula region.
-
B.
NGC 2024
NGC 2024, also known as the Flame Nebula, is a bright emission nebula and active star-forming region located in the constellation Orion near the Horsehead Nebula.
-
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 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.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
open star cluster
ⓘ
young star cluster ⓘ |
| age |
about 2 million years
ⓘ
between 1 and 6 million years ⓘ |
| angularSize | about 24 arcminutes ⓘ |
| apparentMagnitudeV | about 4.8 ⓘ |
| bestSeenInMonth | February ⓘ |
| catalog | New General Catalogue ⓘ |
| contains |
B-type stars
ⓘ
X-ray emitting young stars ⓘ massive O-type stars ⓘ pre-main-sequence stars ⓘ |
| declination | +04° 56′ ⓘ |
| discoveredBy | John Flamsteed ⓘ |
| discoveryYear | before 1690 ⓘ |
| distanceFromEarth |
about 1,600 parsecs
ⓘ
about 5,200 light-years ⓘ |
| embeddedIn | Rosette Nebula ⓘ |
| galacticLatitude | −2.1° ⓘ |
| galacticLongitude | 206.3° ⓘ |
| hasApproximateRadius | about 10 light-years ⓘ |
| hasCentralCavity | cleared in Rosette Nebula by stellar winds ⓘ |
| hasRadialVelocity | about +17 km/s ⓘ |
| hasRoleIn | feedback on Rosette Nebula ⓘ |
| hasSpectralTypeDominance | O and B ⓘ |
| hasStellarPopulation |
low-mass pre-main-sequence stars
ⓘ
young massive stars ⓘ |
| ionizes | Rosette Nebula gas ⓘ |
| isExampleOf |
OB association core
ⓘ
cluster embedded in H II region ⓘ |
| isIn | Galactic plane ⓘ |
| isIncludedIn | Caldwell catalogue ⓘ |
| isSiteOf | ongoing star formation ⓘ |
| isTargetFor |
amateur astronomers
ⓘ
astrophotography ⓘ |
| isVisibleFrom | Northern Hemisphere ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm ⓘ |
| locatedInConstellation | Monoceros ⓘ |
| observedBy |
Chandra X-ray Observatory
ⓘ
Hubble Space Telescope ⓘ Spitzer Space Telescope ⓘ |
| otherDesignation |
Caldwell 50
ⓘ
Collinder 89 ⓘ Melotte 50 ⓘ |
| partOf | Rosette Nebula ⓘ |
| rightAscension | 06h 31m ⓘ |
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 2244 Description of subject: NGC 2244 is a young open star cluster embedded in the Rosette Nebula, located in the constellation Monoceros.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.