Christmas Tree Cluster
E545069
The Christmas Tree Cluster is a young, bright open star cluster in the constellation Monoceros whose stars form a pattern resembling a Christmas tree.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Christmas Tree Cluster canonical | 3 |
| Christmas tree | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775484 — 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: Christmas Tree Cluster Context triple: [Monoceros, contains, Christmas Tree Cluster]
-
A.
Christmas pyramids
Christmas pyramids are traditional German wooden, carousel-like Christmas decorations from the Ore Mountains, typically featuring candle-driven rotating tiers with nativity or winter scenes.
-
B.
Norwegian Christmas Tree
The Norwegian Christmas Tree is a large festive tree gifted annually by Norway and prominently displayed during the holiday season in Edinburgh’s Princes Street Gardens.
-
C.
Christmas Stroll
Christmas Stroll is an annual holiday festival on Nantucket featuring decorated streets, seasonal shopping, and community celebrations that attract visitors to the island each December.
-
D.
Jesse Tree
The Jesse Tree is a symbolic depiction of Jesus’ genealogy and the biblical story of salvation history, traditionally used during Advent to prepare for Christmas.
-
E.
Chandelier Tree
Chandelier Tree is a famous coast redwood in California’s Humboldt Redwoods State Park, known for the car-sized tunnel cut through its trunk that allows vehicles to drive through it.
- 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: Christmas Tree Cluster Target entity description: The Christmas Tree Cluster is a young, bright open star cluster in the constellation Monoceros whose stars form a pattern resembling a Christmas tree.
-
A.
Christmas pyramids
Christmas pyramids are traditional German wooden, carousel-like Christmas decorations from the Ore Mountains, typically featuring candle-driven rotating tiers with nativity or winter scenes.
-
B.
Norwegian Christmas Tree
The Norwegian Christmas Tree is a large festive tree gifted annually by Norway and prominently displayed during the holiday season in Edinburgh’s Princes Street Gardens.
-
C.
Christmas Stroll
Christmas Stroll is an annual holiday festival on Nantucket featuring decorated streets, seasonal shopping, and community celebrations that attract visitors to the island each December.
-
D.
Jesse Tree
The Jesse Tree is a symbolic depiction of Jesus’ genealogy and the biblical story of salvation history, traditionally used during Advent to prepare for Christmas.
-
E.
Chandelier Tree
Chandelier Tree is a famous coast redwood in California’s Humboldt Redwoods State Park, known for the car-sized tunnel cut through its trunk that allows vehicles to drive through it.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf | open star cluster ⓘ |
| age |
a few million years
ⓘ
younger than 10 million years ⓘ |
| angularSize | about 20 arcminutes ⓘ |
| apparentMagnitudeV | about 3.9 ⓘ |
| associatedWith |
Cone Nebula
ⓘ
NGC 2264 (nebula complex) ⓘ
linked to:
NGC 2264
|
| bestSeenFrom | Northern Hemisphere ⓘ |
| bestViewingSeason | winter ⓘ |
| catalog |
Caldwell catalogue
ⓘ
New General Catalogue ⓘ |
| catalogNumber |
C50
ⓘ
NGC 2264 ⓘ |
| constellation | Monoceros ⓘ |
| contains |
T Tauri stars
ⓘ
many hot blue stars ⓘ pre-main-sequence stars ⓘ |
| declination | +09° 53′ ⓘ |
| discoveredBy | William Herschel ⓘ |
| discoveryDate | 1784 ⓘ |
| distanceFromEarth |
about 2,300 light-years
ⓘ
about 700 parsecs ⓘ |
| galacticLatitude | about +2° ⓘ |
| galacticLongitude | about 202° ⓘ |
| hasFeature |
associated dark nebulae
ⓘ
embedded in emission and reflection nebulosity ⓘ |
| hasShape | pattern resembling a Christmas tree ⓘ |
| isIn |
constellation of the Unicorn (Monoceros)
ⓘ
linked to:
Monoceros
|
| isStarFormingRegion | true ⓘ |
| isYoungCluster | true ⓘ |
| liesNear | Galactic plane ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm ⓘ |
| otherName |
Caldwell 50
ⓘ
Cr 112 ⓘ Melotte 72 ⓘ NGC 2264 ⓘ |
| partOf |
NGC 2264 star-forming region
ⓘ
linked to:
NGC 2264
|
| rightAscension | 06h 40m ⓘ |
| spectralTypeDominant | O and B type stars ⓘ |
| visibleIn |
binoculars
ⓘ
small telescopes ⓘ |
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: Christmas Tree Cluster Description of subject: The Christmas Tree Cluster is a young, bright open star cluster in the constellation Monoceros whose stars form a pattern resembling a Christmas tree.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Christmas Tree Cluster