α Herculis
E922780
giant star
main-sequence star
multiple star system
red giant star
semiregular variable star
star system in Hercules
stellar system
α Herculis is a bright multiple star system in the constellation Hercules, dominated by a luminous red giant visible to the naked eye.
All labels observed (1)
| Label | Occurrences |
|---|---|
| α Herculis canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11376979 — 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: α Herculis Context triple: [Hercules, hasStar, α Herculis]
-
A.
β Herculis
β Herculis is a bright binary star system in the constellation Hercules, commonly known by its traditional name Kornephoros.
-
B.
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.
-
C.
Alpha Telescopii
Alpha Telescopii is a blue-white giant star that serves as the primary luminary of the southern constellation Telescopium.
-
D.
Alpha Geminorum
Alpha Geminorum, also known as Castor, is one of the brightest stars in the constellation Gemini and is actually a complex multiple-star system.
-
E.
Alpha Eridani
Alpha Eridani, traditionally known as Achernar, is a bright, rapidly rotating blue-white star marking the southern end of the constellation Eridanus.
- 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: α Herculis Target entity description: α Herculis is a bright multiple star system in the constellation Hercules, dominated by a luminous red giant visible to the naked eye.
-
A.
β Herculis
β Herculis is a bright binary star system in the constellation Hercules, commonly known by its traditional name Kornephoros.
-
B.
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.
-
C.
Alpha Telescopii
Alpha Telescopii is a blue-white giant star that serves as the primary luminary of the southern constellation Telescopium.
-
D.
Alpha Geminorum
Alpha Geminorum, also known as Castor, is one of the brightest stars in the constellation Gemini and is actually a complex multiple-star system.
-
E.
Alpha Eridani
Alpha Eridani, traditionally known as Achernar, is a bright, rapidly rotating blue-white star marking the southern end of the constellation Eridanus.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
giant star
ⓘ
main-sequence star ⓘ multiple star system ⓘ red giant star ⓘ semiregular variable star ⓘ star system in Hercules ⓘ stellar system ⓘ |
| etymology | from Arabic meaning “the kneeler’s head” ⓘ |
| hasApparentMagnitudeV |
about 3.0–4.0
ⓘ
about 3.5 ⓘ |
| hasBayerDesignation | α Herculis NERFINISHED ⓘ |
| hasComponent |
α Herculis A
NERFINISHED
ⓘ
α Herculis B NERFINISHED ⓘ α Herculis C NERFINISHED ⓘ |
| hasDeclination_J2000 | +14° 23′ (approx) ⓘ |
| hasDistanceFromEarth_ly | about 360 ⓘ |
| hasDistanceFromEarth_pc | about 110 ⓘ |
| hasFlamsteedDesignation | 64 Herculis NERFINISHED ⓘ |
| hasGalacticLatitude | +23° (approx) ⓘ |
| hasGalacticLongitude | 29° (approx) ⓘ |
| hasLuminosity_solar | about 10,000 ⓘ |
| hasMass_solar | about 2–3 ⓘ |
| hasOrbitalCompanions | α Herculis B-C pair ⓘ |
| hasOtherDesignation |
BD+14 3223
NERFINISHED
ⓘ
HD 156014 NERFINISHED ⓘ HIP 84345 NERFINISHED ⓘ HR 6406 NERFINISHED ⓘ SAO 102680 NERFINISHED ⓘ |
| hasParallax_mas | about 9 ⓘ |
| hasProperName | Rasalgethi NERFINISHED ⓘ |
| hasRadialVelocity_km_s | about −31 ⓘ |
| hasRadius_solar | about 250–300 ⓘ |
| hasRightAscension_J2000 | 17h 14m 38s (approx) ⓘ |
| hasSpectralType |
A9 IV-V
ⓘ
G5 III ⓘ M5 Ib-II ⓘ M5 Ib-II + G5 III + A9 IV-V (composite) ⓘ |
| hasSystemType | triple star system ⓘ |
| hasVariableType | semiregular variable ⓘ |
| isBrightestStarInConstellation | false ⓘ |
| isDominantComponentOf | α Herculis NERFINISHED ⓘ |
| isNamedAfterArabicPhrase | true ⓘ |
| isNearConstellationBorderWith | Ophiuchus NERFINISHED ⓘ |
| isOpticalCompanionOf | α Herculis A NERFINISHED ⓘ |
| isPhysicalCompanionOf | α Herculis B NERFINISHED ⓘ |
| isVariableStar | true ⓘ |
| isVisibleToNakedEye | true ⓘ |
| locatedInConstellation | Hercules NERFINISHED ⓘ |
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: α Herculis Description of subject: α Herculis is a bright multiple star system in the constellation Hercules, dominated by a luminous red giant visible to the naked eye.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.