Open cluster M16
E103063
Open cluster M16, better known as the star cluster within the Eagle Nebula, is a young, bright group of stars famous for illuminating the "Pillars of Creation" region in the Milky Way.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Open cluster M16 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T868806 — 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: Open cluster M16 Context triple: [Orion Arm, contains, Open cluster M16]
-
A.
Open cluster M11
Open cluster M11, also known as the Wild Duck Cluster, is a rich and compact star cluster in the constellation Scutum, notable for its dense stellar population and brightness in the Milky Way.
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B.
Open cluster NGC 6530
Open cluster NGC 6530 is a young, bright star cluster embedded in the Lagoon Nebula in the constellation Sagittarius, serving as a prominent site of active star formation within the Milky Way.
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C.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
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D.
Open cluster M25
Open cluster M25 is a bright, relatively nearby star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping within the Milky Way.
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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: Open cluster M16 Target entity description: Open cluster M16, better known as the star cluster within the Eagle Nebula, is a young, bright group of stars famous for illuminating the "Pillars of Creation" region in the Milky Way.
-
A.
Open cluster M11
Open cluster M11, also known as the Wild Duck Cluster, is a rich and compact star cluster in the constellation Scutum, notable for its dense stellar population and brightness in the Milky Way.
-
B.
Open cluster NGC 6530
Open cluster NGC 6530 is a young, bright star cluster embedded in the Lagoon Nebula in the constellation Sagittarius, serving as a prominent site of active star formation within the Milky Way.
-
C.
globular star cluster M13
Globular star cluster M13, also known as the Great Hercules Cluster, is a dense, bright spherical collection of hundreds of thousands of ancient stars located in the constellation Hercules and is one of the most prominent globular clusters visible from Earth.
-
D.
Open cluster M25
Open cluster M25 is a bright, relatively nearby star cluster in the constellation Sagittarius, visible with binoculars and often studied as a young stellar grouping within the Milky Way.
-
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 (48)
| Predicate | Object |
|---|---|
| instanceOf |
Messier object
ⓘ
NGC object ⓘ astronomical object ⓘ open star cluster ⓘ |
| age |
about 1–3 million years
ⓘ
young star cluster ⓘ |
| alsoKnownAs |
Eagle Nebula
ⓘ
surface form:
Eagle Nebula star cluster
M16 ⓘ Messier 16 ⓘ NGC 6611 ⓘ |
| angularSize | about 7 arcminutes ⓘ |
| apparentMagnitudeV | about 6.0 ⓘ |
| appearsIn | Hubble Space Telescope images ⓘ |
| associatedWith | Pillars of Creation ⓘ |
| bestSeenIn |
binoculars under dark skies
ⓘ
small telescopes ⓘ |
| cataloguedBy | Charles Messier ⓘ |
| contains |
many B-type stars
ⓘ
many O-type stars ⓘ massive young stars ⓘ pre-main-sequence stars ⓘ |
| declination | −13° 47′ ⓘ |
| discoveredBy | Philippe Loys de Chéseaux ⓘ |
| discoveryYear | 1745–1746 ⓘ |
| distanceFromEarth |
about 2.0 kiloparsecs
ⓘ
about 7000 light-years ⓘ |
| galacticLatitude | +0.8° (approximate) ⓘ |
| galacticLongitude | 17° (approximate) ⓘ |
| has | central concentration of bright stars ⓘ |
| illuminates | Pillars of Creation ⓘ |
| ionizes | gas in the Eagle Nebula ⓘ |
| is | a site of active star formation ⓘ |
| locatedIn |
Eagle Nebula
ⓘ
Milky Way ⓘ Sagittarius Arm ⓘ
surface form:
Sagittarius Arm of the Milky Way
Serpens Cauda ⓘ constellation Serpens ⓘ |
| messierNumber | M16 ⓘ |
| ngcNumber | NGC 6611 ⓘ |
| notableFor |
association with iconic Hubble images
ⓘ
illuminating the Eagle Nebula ⓘ |
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| partOf | Eagle Nebula ⓘ |
| regionType | H II region association ⓘ |
| rightAscension | 18h 18m ⓘ |
| spectralTypeDominant | O and B ⓘ |
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: Open cluster M16 Description of subject: Open cluster M16, better known as the star cluster within the Eagle Nebula, is a young, bright group of stars famous for illuminating the "Pillars of Creation" region in the Milky Way.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.