Alpha Capricorni
E249867
Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Alpha Capricorni canonical | 3 |
| Alpha Capricorni A | 1 |
| Alpha Capricorni B | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2233495 — 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: Alpha Capricorni Context triple: [Capricornus, notableStar, Alpha Capricorni]
-
A.
Delta Capricorni
Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
-
B.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
C.
Alpha Cancri
Alpha Cancri is a multiple-star system in the constellation Cancer, visible to the naked eye and known for its close stellar pairing.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
- 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: Alpha Capricorni Target entity description: Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
-
A.
Delta Capricorni
Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
-
B.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
C.
Alpha Cancri
Alpha Cancri is a multiple-star system in the constellation Cancer, visible to the naked eye and known for its close stellar pairing.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
multiple star system
ⓘ
star ⓘ star ⓘ stellar system ⓘ |
| angularSeparationType | wide double ⓘ |
| apparentMagnitude |
about 3.6
ⓘ
about 3.6 ⓘ about 4.3 ⓘ |
| appearsAs | single star to naked eye ⓘ |
| BayerDesignation | α Capricorni ⓘ |
| canBeOccultedBy |
Moon
ⓘ
planets ⓘ |
| catalogDesignation |
HIP 100345
ⓘ
surface form:
HIP 100310
HIP 100345 ⓘ HIP 100345 ⓘ |
| component |
Alpha Capricorni
self-linksurface differs
ⓘ
surface form:
Alpha Capricorni A
Alpha Capricorni self-linksurface differs ⓘ
surface form:
Alpha Capricorni B
|
| componentOf |
Alpha Capricorni
self-linksurface differs
ⓘ
Alpha Capricorni self-linksurface differs ⓘ |
| constellation | Capricornus ⓘ |
| declinationEpochJ2000 | −12° (approximate) ⓘ |
| distanceFromEarth |
about 100 light-years (for Alpha Capricorni A)
ⓘ
about 140 light-years (for Alpha Capricorni B) ⓘ |
| eclipticProximity | near the ecliptic ⓘ |
| hasBayerLetter | Alpha ⓘ |
| hasComponentType | optical double star ⓘ |
| hasCulturalSignificanceIn | traditional Arabic astronomy ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| isAmong | brightest stars in Capricornus ⓘ |
| isBrightStarIn | Capricornus ⓘ |
| locatedIn | zodiac constellation ⓘ |
| observedSince | antiquity ⓘ |
| otherName |
Algedi
ⓘ
Giedi ⓘ α Capricorni ⓘ α Capricorni ⓘ
surface form:
α² Capricorni
α Capricorni ⓘ
surface form:
α¹ Capricorni
|
| parallaxMeasurement |
measured by Gaia
ⓘ
measured by Hipparcos ⓘ |
| rightAscensionEpochJ2000 | 20h 18m (approximate) ⓘ |
| separationBetweenComponents | about 6 arcminutes ⓘ |
| spectralType |
G-type giant
ⓘ
G-type giant ⓘ |
| traditionalNameMeaning | the kid (young goat) ⓘ |
| traditionalNameOriginLanguage | Arabic ⓘ |
| visibility | naked eye ⓘ |
| 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: Alpha Capricorni Description of subject: Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Capricornus
this entity surface form:
Alpha Capricorni A
this entity surface form:
Alpha Capricorni B
subject surface form:
Alpha Capricorni A
subject surface form:
Alpha Capricorni B