NGC 2264
E545068
NGC 2264 is a prominent star-forming region in the constellation Monoceros that includes the Cone Nebula and the Christmas Tree Cluster.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NGC 2264 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775483 — 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 2264 Context triple: [Monoceros, contains, NGC 2264]
-
A.
NGC 2362
NGC 2362 is a young, bright open star cluster dominated by the massive star Tau Canis Majoris, located in the constellation Canis Major.
-
B.
NGC 1333
NGC 1333 is a nearby, active star-forming nebula rich in young stellar objects and reflection nebulosity, located in the Perseus constellation.
-
C.
NGC 6231
NGC 6231 is a bright, young open star cluster located near the tail of the constellation Scorpius, notable for its massive, hot stars and role as the core of the Scorpius OB1 association.
-
D.
Barnard 33
Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
-
E.
NGC 6925
NGC 6925 is a barred spiral galaxy located in the constellation Microscopium.
- 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 2264 Target entity description: NGC 2264 is a prominent star-forming region in the constellation Monoceros that includes the Cone Nebula and the Christmas Tree Cluster.
-
A.
NGC 2362
NGC 2362 is a young, bright open star cluster dominated by the massive star Tau Canis Majoris, located in the constellation Canis Major.
-
B.
NGC 1333
NGC 1333 is a nearby, active star-forming nebula rich in young stellar objects and reflection nebulosity, located in the Perseus constellation.
-
C.
NGC 6231
NGC 6231 is a bright, young open star cluster located near the tail of the constellation Scorpius, notable for its massive, hot stars and role as the core of the Scorpius OB1 association.
-
D.
Barnard 33
Barnard 33, commonly known as the Horsehead Nebula, is a small dark nebula in the constellation Orion whose distinctive horse-head shape is silhouetted against the bright emission nebula IC 434.
-
E.
NGC 6925
NGC 6925 is a barred spiral galaxy located in the constellation Microscopium.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
emission nebula
ⓘ
open cluster ⓘ star-forming region ⓘ |
| angularSize | ~60 arcminutes ⓘ |
| apparentMagnitudeV | 3.9 ⓘ |
| bestSeenFrom | Northern Hemisphere NERFINISHED ⓘ |
| bestViewingSeason | winter ⓘ |
| catalog | New General Catalogue NERFINISHED ⓘ |
| contains |
Christmas Tree Cluster
NERFINISHED
ⓘ
Cone Nebula NERFINISHED ⓘ Herbig Ae/Be stars ⓘ T Tauri stars NERFINISHED ⓘ dust lanes ⓘ molecular clouds ⓘ pre-main-sequence stars ⓘ young stellar objects ⓘ |
| declination | +09° 53′ ⓘ |
| discoveredBy | William Herschel NERFINISHED ⓘ |
| discoveryDate | 1784 ⓘ |
| distanceFromEarth |
~2,300 light-years
ⓘ
~720 pc ⓘ |
| hasAge | a few million years ⓘ |
| hasFeature |
bright nebulosity
ⓘ
dark cone-shaped pillar ⓘ |
| hasNotableRegion | Fox Fur Nebula NERFINISHED ⓘ |
| hasShapeAssociation | Christmas tree NERFINISHED ⓘ |
| includedIn | Caldwell catalogue NERFINISHED ⓘ |
| ionizedBy | massive young stars ⓘ |
| isRegionOf | active star formation ⓘ |
| locatedIn | Orion Arm NERFINISHED ⓘ |
| locatedInConstellation | Monoceros NERFINISHED ⓘ |
| nearbyTo | Galactic anticenter direction ⓘ |
| observedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ Spitzer Space Telescope NERFINISHED ⓘ |
| otherName |
Caldwell 50
NERFINISHED
ⓘ
Sharpless 273 NERFINISHED ⓘ |
| partOf | Milky Way NERFINISHED ⓘ |
| rightAscension | 06h 41m ⓘ |
| spectralTypeDominantStars |
B-type
ⓘ
O-type ⓘ |
| visibleIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ 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 2264 Description of subject: NGC 2264 is a prominent star-forming region in the constellation Monoceros that includes the Cone Nebula and the Christmas Tree Cluster.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.