openCluster NGC 6664
E459134
OpenCluster NGC 6664 is an open star cluster located within the constellation Scutum, composed of a loose grouping of gravitationally bound young stars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| openCluster NGC 6664 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4619158 — 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: openCluster NGC 6664 Context triple: [Scutum, contains, openCluster NGC 6664]
-
A.
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.
-
B.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
C.
globular cluster NGC 6541
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.
-
D.
NGC 6514
NGC 6514 is a bright, colorful emission and reflection nebula in the constellation Sagittarius, widely known as the Trifid Nebula.
-
E.
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.
- 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: openCluster NGC 6664 Target entity description: OpenCluster NGC 6664 is an open star cluster located within the constellation Scutum, composed of a loose grouping of gravitationally bound young stars.
-
A.
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.
-
B.
NGC 6205
NGC 6205 is a bright, densely packed globular star cluster in the constellation Hercules, commonly known as the Great Hercules Cluster (M13).
-
C.
globular cluster NGC 6541
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.
-
D.
NGC 6514
NGC 6514 is a bright, colorful emission and reflection nebula in the constellation Sagittarius, widely known as the Trifid Nebula.
-
E.
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.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical object
ⓘ
open star cluster ⓘ star cluster ⓘ |
| age | young stellar cluster ⓘ |
| angularDiameter | ~16′ ⓘ |
| apparentMagnitude | ~8.9 ⓘ |
| apparentSize | ~16 arcminutes ⓘ |
| bestSeenIn | small telescope ⓘ |
| bestViewingSeason | northern summer ⓘ |
| binding | gravitationally bound ⓘ |
| catalog | NGC ⓘ |
| catalogNumber | 6664 ⓘ |
| celestialHemisphere | southern sky ⓘ |
| clusterStructure | loose grouping ⓘ |
| contains |
B-type stars
ⓘ
main-sequence stars ⓘ |
| declination | −08° 13′ ⓘ |
| discoveredBy | William Herschel ⓘ |
| discoveryDate | 18th century ⓘ |
| discoveryMethod | optical telescope observation ⓘ |
| distanceFromEarth |
~1.9 kiloparsecs
ⓘ
~6200 light-years ⓘ |
| galacticObjectType | open cluster ⓘ |
| hasAlternativeName |
C 1833-082
ⓘ
OCL 77 ⓘ |
| isInConstellationFamily | Hercules family ⓘ |
| isPartOf | Milky Way ⓘ |
| locatedIn |
Milky Way disk
ⓘ
linked to:
Milky Way
Scutum star field ⓘ
linked to:
Scutum Star Cloud
|
| locatedInConstellation | Scutum ⓘ |
| objectClass | open cluster of the Milky Way ⓘ |
| observedIn | optical wavelengths ⓘ |
| rightAscension | 18h 36m ⓘ |
| skyLocationReference | New General Catalogue ⓘ |
| stellarPopulation | young stars ⓘ |
| visibleFrom | Earth ⓘ |
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: openCluster NGC 6664 Description of subject: OpenCluster NGC 6664 is an open star cluster located within the constellation Scutum, composed of a loose grouping of gravitationally bound young stars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.