Open cluster M17
E105133
Open cluster M17 is a young, bright star cluster embedded in the Omega Nebula in the Milky Way, notable for its active star formation and massive, hot stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Open cluster M17 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T868807 — 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 M17 Context triple: [Orion Arm, contains, Open cluster M17]
-
A.
Open cluster M16
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.
-
B.
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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C.
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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D.
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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E.
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.
- 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 M17 Target entity description: Open cluster M17 is a young, bright star cluster embedded in the Omega Nebula in the Milky Way, notable for its active star formation and massive, hot stars.
-
A.
Open cluster M16
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
open star cluster
ⓘ
stellar cluster embedded in an H II region ⓘ young star cluster ⓘ |
| age |
about 1 million years
ⓘ
on the order of a few million years ⓘ |
| associatedWith |
Checkmark Nebula
ⓘ
Swan Nebula ⓘ
surface form:
Horseshoe Nebula
Omega Nebula ⓘ Swan Nebula ⓘ |
| catalogDesignation |
M17
ⓘ
Messier 17 ⓘ NGC 6618 ⓘ |
| cataloguedBy | Charles Messier ⓘ |
| contains |
massive B-type stars
ⓘ
massive O-type stars ⓘ pre-main-sequence stars ⓘ protostars ⓘ young stellar objects ⓘ |
| discoveredBy | Philippe Loys de Chéseaux ⓘ |
| distanceFromEarth |
approximately 1.6 kiloparsecs
ⓘ
approximately 5000 light-years ⓘ |
| drives | stellar winds that shape the Omega Nebula ⓘ |
| hasEnvironment |
dense molecular cloud
ⓘ
dusty star-forming region ⓘ |
| hasProperty |
active star formation
ⓘ
bright ⓘ embedded in nebular gas and dust ⓘ ionizing source of surrounding H II region ⓘ rich in massive stars ⓘ young ⓘ |
| hasResearchInterest |
early evolution of massive clusters
ⓘ
feedback from massive stars on molecular clouds ⓘ massive star formation processes ⓘ |
| hasStarFormation |
clustered star formation
ⓘ
massive star formation ⓘ |
| locatedIn |
Milky Way
ⓘ
Omega Nebula ⓘ Sagittarius Arm ⓘ
surface form:
Sagittarius Arm of the Milky Way
Sagittarius ⓘ
surface form:
Sagittarius constellation
|
| observedIn |
X-ray wavelengths
ⓘ
infrared wavelengths ⓘ optical wavelengths ⓘ |
| partOf |
Messier 17
ⓘ
surface form:
M17 star-forming region
|
| roleInNebula | main ionizing cluster of Omega Nebula ⓘ |
| spectralContent | strong hydrogen emission ⓘ |
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 M17 Description of subject: Open cluster M17 is a young, bright star cluster embedded in the Omega Nebula in the Milky Way, notable for its active star formation and massive, hot stars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.