δ Herculis
E925813
δ Herculis is a bright multiple star system in the constellation Hercules, visible to the naked eye and commonly used as a reference point in the northern sky.
All labels observed (5)
| Label | Occurrences |
|---|---|
| δ Herculis canonical | 2 |
| δ Herculis A | 1 |
| δ Herculis B | 1 |
| δ Herculis C | 1 |
| δ Herculis D | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11376981 — 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: δ Herculis Context triple: [Hercules, hasStar, δ Herculis]
-
A.
γ Herculis
γ Herculis is a bright multiple star system in the constellation Hercules, visible to the naked eye and notable as one of the constellation’s principal stars.
-
B.
β Herculis
β Herculis is a bright binary star system in the constellation Hercules, commonly known by its traditional name Kornephoros.
-
C.
α Herculis
α Herculis is a bright multiple star system in the constellation Hercules, dominated by a luminous red giant visible to the naked eye.
-
D.
η Herculis
η Herculis is a bright giant star in the constellation Hercules, visible to the naked eye and used as a reference point near the globular cluster M13.
-
E.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
- 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: δ Herculis Target entity description: δ Herculis is a bright multiple star system in the constellation Hercules, visible to the naked eye and commonly used as a reference point in the northern sky.
-
A.
γ Herculis
γ Herculis is a bright multiple star system in the constellation Hercules, visible to the naked eye and notable as one of the constellation’s principal stars.
-
B.
β Herculis
β Herculis is a bright binary star system in the constellation Hercules, commonly known by its traditional name Kornephoros.
-
C.
α Herculis
α Herculis is a bright multiple star system in the constellation Hercules, dominated by a luminous red giant visible to the naked eye.
-
D.
η Herculis
η Herculis is a bright giant star in the constellation Hercules, visible to the naked eye and used as a reference point near the globular cluster M13.
-
E.
Epsilon Scuti
Epsilon Scuti is a relatively faint star located in the small southern constellation Scutum.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
multiple star system
ⓘ
star ⓘ star ⓘ star ⓘ star ⓘ stellar system ⓘ |
| BayerDesignation | δ Herculis ⓘ |
| belongsToAsterism | Keystone of Hercules ⓘ |
| constellation | Hercules ⓘ |
| declinationEpochJ2000 | approximately +24° ⓘ |
| distanceFromEarth | approximately 75 light-years ⓘ |
| equatorialHemisphereVisibility | northern sky ⓘ |
| hasApparentMagnitudeV | approximately 3.1 ⓘ |
| hasComponent |
δ Herculis A
ⓘ
linked to:
δ Herculis
δ Herculis B ⓘ
linked to:
δ Herculis
δ Herculis C ⓘ
linked to:
δ Herculis
δ Herculis D ⓘ
linked to:
δ Herculis
|
| hasFlamsteedDesignation | 39 Herculis ⓘ |
| hasParallaxMeasurement | true ⓘ |
| hasProperMotion | true ⓘ |
| isBrightStar | true ⓘ |
| isCataloguedIn |
Henry Draper Catalogue
ⓘ
Hipparcos Catalogue ⓘ |
| isNorthernCelestialHemisphereObject | true ⓘ |
| isReferenceStar | true ⓘ |
| isUsedFor |
celestial navigation
ⓘ
sky orientation ⓘ |
| isVisibleToNakedEye | true ⓘ |
| rightAscensionEpochJ2000 | approximately 17h 15m ⓘ |
| spectralTypePrimary | A-type star ⓘ |
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: δ Herculis Description of subject: δ Herculis is a bright multiple star system in the constellation Hercules, visible to the naked eye and commonly used as a reference point in the northern sky.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: δ Herculis
linked to: δ Herculis
linked to: δ Herculis
linked to: δ Herculis