globular cluster NGC 6541
E450601
Globular cluster NGC 6541 is a bright, compact, and ancient spherical star cluster located in the constellation Corona Australis, notable for its high stellar density and great age.
All labels observed (1)
| Label | Occurrences |
|---|---|
| globular cluster NGC 6541 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4531793 — 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: globular cluster NGC 6541 Context triple: [Corona Australis, contains, globular cluster NGC 6541]
-
A.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
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.
Jewel Box cluster
The Jewel Box cluster is a bright and colorful open star cluster in the constellation Crux, renowned for its striking mix of blue and red stars visible even in small telescopes.
-
D.
NGC 346
NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
-
E.
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.
- 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: globular cluster NGC 6541 Target entity description: Globular cluster NGC 6541 is a bright, compact, and ancient spherical star cluster located in the constellation Corona Australis, notable for its high stellar density and great age.
-
A.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
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.
Jewel Box cluster
The Jewel Box cluster is a bright and colorful open star cluster in the constellation Crux, renowned for its striking mix of blue and red stars visible even in small telescopes.
-
D.
NGC 346
NGC 346 is a prominent star-forming region and open cluster in the Small Magellanic Cloud, known for its young, massive stars and complex nebular structures.
-
E.
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.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
globular cluster ⓘ |
| absoluteMagnitudeV | about −8.5 ⓘ |
| age | about 12–13 billion years ⓘ |
| angularSize | 15 arcminutes ⓘ |
| apparentMagnitudeV | 6.3 ⓘ |
| belongsTo |
Corona Australis constellation region
ⓘ
linked to:
Corona Australis
Milky Way globular cluster system ⓘ |
| bestSeenFrom | Southern Hemisphere ⓘ |
| catalog | NGC ⓘ |
| colorIndexBminusV | about 0.73 ⓘ |
| constellation | Corona Australis ⓘ |
| contains |
RR Lyrae variable stars
ⓘ
horizontal branch stars ⓘ |
| coreConcentration | high ⓘ |
| coreRadius | about 0.05 degrees ⓘ |
| declination | −43° 42′ 20″ ⓘ |
| discoveredBy | Niccolò Cacciatore ⓘ |
| discoveryYear | 1826 ⓘ |
| distanceFromEarth |
about 22,800 light-years
ⓘ
about 7.0 kiloparsecs ⓘ |
| galacticLatitude | −11.18 degrees ⓘ |
| galacticLongitude | 349.29 degrees ⓘ |
| galacticPopulation | Galactic halo ⓘ |
| locatedIn | Milky Way ⓘ |
| mass | several hundred thousand solar masses ⓘ |
| metallicityFeH | about −1.8 ⓘ |
| morphology | bright and compact ⓘ |
| notableFor |
compact core
ⓘ
great age ⓘ high stellar density ⓘ |
| observedBy |
Hubble Space Telescope
ⓘ
ground-based observatories ⓘ |
| observedIn | optical wavelengths ⓘ |
| otherDesignation |
C 1804-437
ⓘ
ESO 280-8 ⓘ GCl 87 ⓘ Melotte 186 ⓘ |
| rightAscension | 18h 08m 02s ⓘ |
| shape | roughly spherical ⓘ |
| ShapleySawyerConcentrationClass | Class III ⓘ |
| stellarDensity | high ⓘ |
| stellarPopulation | old, metal-poor stars ⓘ |
| visibility | naked-eye object under dark skies ⓘ |
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: globular cluster NGC 6541 Description of subject: Globular cluster NGC 6541 is a bright, compact, and ancient spherical star cluster located in the constellation Corona Australis, notable for its high stellar density and great age.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.