Rosette Nebula
E106307
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Rosette Nebula canonical | 15 |
| Rosette Molecular Cloud | 3 |
| Rosette Nebula region | 2 |
| Rosette star-forming region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T868792 — 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: Rosette Nebula Context triple: [Orion Arm, contains, Rosette Nebula]
-
A.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
-
B.
Southern Ring Nebula
The Southern Ring Nebula is a bright, roughly 2,000-light-year-distant planetary nebula in the constellation Vela, formed from the outer layers of a dying sun-like star and notable for its intricate, colorful gas shells.
-
C.
Orion Nebula
The Orion Nebula is a bright, nearby stellar nursery where new stars and planetary systems are actively forming within the constellation Orion.
-
D.
Messier 17
Messier 17, also known as the Omega or Swan Nebula, is a bright star-forming emission nebula located in the constellation Sagittarius.
-
E.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
- 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: Rosette Nebula Target entity description: 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.
-
A.
Carina Nebula
The Carina Nebula is a vast, active star-forming region in the Milky Way known for its towering gas and dust pillars and dramatic young stellar clusters.
-
B.
Southern Ring Nebula
The Southern Ring Nebula is a bright, roughly 2,000-light-year-distant planetary nebula in the constellation Vela, formed from the outer layers of a dying sun-like star and notable for its intricate, colorful gas shells.
-
C.
Orion Nebula
The Orion Nebula is a bright, nearby stellar nursery where new stars and planetary systems are actively forming within the constellation Orion.
-
D.
Messier 17
Messier 17, also known as the Omega or Swan Nebula, is a bright star-forming emission nebula located in the constellation Sagittarius.
-
E.
NGC 6822
NGC 6822 is a barred irregular dwarf galaxy located in the constellation Sagittarius and is one of the nearest and best-studied galaxies outside the Milky Way.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
H II region
ⓘ
deep-sky object ⓘ emission nebula ⓘ star-forming region ⓘ |
| angularSize | about 1.3 degrees ⓘ |
| apparentMagnitudeV | 9.0 ⓘ |
| associatedWith | open cluster NGC 2244 ⓘ |
| bestSeenFrom | Northern Hemisphere ⓘ |
| bestSeenInMonth | February ⓘ |
| catalogCode |
C49
ⓘ
NGC 2237 ⓘ
linked to:
NGC 2237–9
NGC 2238 ⓘ
linked to:
NGC 2246
NGC 2239 ⓘ
linked to:
NGC 2237–9
NGC 2246 ⓘ Sh2-275 ⓘ
linked to:
Sharpless 2-275
|
| contains |
Bok globules
ⓘ
dust lanes ⓘ ionized hydrogen gas ⓘ protostars ⓘ young massive stars ⓘ |
| declination | +04° 59′ ⓘ |
| distanceFromEarth |
about 1,600 parsecs
ⓘ
about 5,200 light-years ⓘ |
| dominantColor | red ⓘ |
| dominantEmissionLine | H-alpha ⓘ |
| excitedBy | ultraviolet radiation from NGC 2244 stars ⓘ |
| hasAlternativeName |
Caldwell 49
ⓘ
NGC 2237–9 ⓘ NGC 2246 ⓘ Sh 2-275 ⓘ Sharpless 2-275 ⓘ |
| hasAppearance | rose-like ⓘ |
| hasCentralObject | open cluster NGC 2244 ⓘ |
| hasEstimatedDiameter | about 130 light-years ⓘ |
| hasShape | roughly circular ⓘ |
| hasStructure | central cavity cleared by stellar winds ⓘ |
| isRegionOf | active star formation ⓘ |
| isTargetFor |
amateur astronomers
ⓘ
astrophotography ⓘ |
| isTypeOf | giant molecular cloud complex ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm of the Milky Way ⓘ
linked to:
Orion Arm
constellation Monoceros ⓘ
linked to:
Monoceros
|
| observedIn |
infrared wavelengths
ⓘ
optical wavelengths ⓘ radio wavelengths ⓘ |
| partOf | Monoceros OB2 association ⓘ |
| rightAscension | 06h 33m ⓘ |
| shapedBy | stellar winds from massive O-type stars ⓘ |
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: Rosette Nebula Description of subject: 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.
Referenced by (21)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rosette Nebula
subject linked to:
open cluster NGC 2244
subject linked to:
open cluster NGC 2244
subject linked to:
open cluster NGC 2244
linked to: Rosette Nebula
linked to: Rosette Nebula
linked to: Rosette Nebula
linked to: Rosette Nebula