Cone Nebula
E554484
The Cone Nebula is a striking, cone-shaped dark nebula and star-forming region located within the constellation Monoceros, known for its dramatic appearance in astrophotography.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cone Nebula canonical | 3 |
| Christmas Tree Cluster and Cone Nebula complex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775482 — 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: Cone Nebula Context triple: [Monoceros, contains, Cone Nebula]
-
A.
Eskimo Nebula
Eskimo Nebula is a bright planetary nebula in the constellation Gemini, notable for its distinctive, fur-lined parka appearance surrounding a central star.
-
B.
Pelican Nebula
The Pelican Nebula is a bright emission nebula in the constellation Cygnus, notable for its bird-like shape and active star-forming regions.
-
C.
Rosette Nebula
The Rosette Nebula is a large, circular emission nebula and active star-forming region located in the Milky Way, notable for its striking rose-like appearance in astrophotography.
-
D.
Ring Nebula
The Ring Nebula is a famous planetary nebula in the constellation Lyra, known for its bright, ring-shaped shell of ionized gas surrounding a hot central white dwarf.
-
E.
Omega Nebula
The Omega Nebula is a bright, star-forming emission nebula and H II region located in the constellation Sagittarius, known for its distinctive swan-like shape and rich young star clusters.
- 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: Cone Nebula Target entity description: The Cone Nebula is a striking, cone-shaped dark nebula and star-forming region located within the constellation Monoceros, known for its dramatic appearance in astrophotography.
-
A.
Eskimo Nebula
Eskimo Nebula is a bright planetary nebula in the constellation Gemini, notable for its distinctive, fur-lined parka appearance surrounding a central star.
-
B.
Pelican Nebula
The Pelican Nebula is a bright emission nebula in the constellation Cygnus, notable for its bird-like shape and active star-forming regions.
-
C.
Rosette Nebula
The Rosette Nebula is a large, circular emission nebula and active star-forming region located in the Milky Way, notable for its striking rose-like appearance in astrophotography.
-
D.
Ring Nebula
The Ring Nebula is a famous planetary nebula in the constellation Lyra, known for its bright, ring-shaped shell of ionized gas surrounding a hot central white dwarf.
-
E.
Omega Nebula
The Omega Nebula is a bright, star-forming emission nebula and H II region located in the constellation Sagittarius, known for its distinctive swan-like shape and rich young star clusters.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
dark nebula
ⓘ
molecular cloud ⓘ |
| angularSize | approximately 20 arcminutes (NGC 2264 complex) ⓘ |
| apparentMagnitudeV | approximately 3.9 (NGC 2264 complex) ⓘ |
| associatedWith |
Christmas Tree Cluster
ⓘ
H II region ⓘ NGC 2264 star-forming region ⓘ
linked to:
NGC 2264
|
| bestSeenIn | long-exposure astrophotography ⓘ |
| bestViewingSeason | winter ⓘ |
| catalogDesignation |
LDN 1605 (region)
ⓘ
part of NGC 2264 ⓘ |
| composition |
cold molecular gas
ⓘ
interstellar dust ⓘ |
| declination | +09° 53′ ⓘ |
| discoveredBy | William Herschel ⓘ |
| discoveryYear | 1785 ⓘ |
| distanceFromEarth |
approximately 2,700 light-years
ⓘ
approximately 830 parsecs ⓘ |
| environment | embedded in an H II region ionized by nearby massive stars ⓘ |
| formedBy | erosion by stellar winds and radiation ⓘ |
| hasColor | appears dark in visible light against bright background ⓘ |
| hasFeature |
bright rim at illuminated edge
ⓘ
dense pillar of gas and dust ⓘ |
| hostTo |
protostars
ⓘ
young stellar objects ⓘ |
| illuminatedBy | nearby massive O- and B-type stars ⓘ |
| imagedBy |
Hubble Space Telescope
ⓘ
amateur astrophotographers ⓘ ground-based observatories ⓘ |
| knownFor |
dramatic appearance in astrophotography
ⓘ
prominent pillar-like structure ⓘ |
| liesNear | bright star S Monocerotis ⓘ |
| locatedIn | Monoceros OB1 association ⓘ |
| locatedInConstellation | Monoceros ⓘ |
| observedInWavelength |
infrared
ⓘ
radio ⓘ visible light ⓘ |
| partOf |
Christmas Tree Cluster and Cone Nebula complex
ⓘ
linked to:
Cone Nebula
Milky Way ⓘ NGC 2264 ⓘ Orion Arm ⓘ |
| process | ongoing star formation ⓘ |
| regionType | giant molecular cloud core ⓘ |
| rightAscension | 06h 41m ⓘ |
| shape | cone-shaped ⓘ |
| similarTo |
Pillars of Creation in the Eagle Nebula
ⓘ
linked to:
Pillars of Creation
|
| visibleFrom | Northern Hemisphere ⓘ |
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: Cone Nebula Description of subject: The Cone Nebula is a striking, cone-shaped dark nebula and star-forming region located within the constellation Monoceros, known for its dramatic appearance in astrophotography.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Cone Nebula