Delta Centauri
E772337
Delta Centauri is a bright blue-white giant star in the southern constellation Centaurus, visible to the naked eye and notable as one of its prominent stellar members.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delta Centauri canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8717099 — 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: Delta Centauri Context triple: [Centaurus, containsStar, Delta Centauri]
-
A.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
-
B.
Tau Canis Majoris
Tau Canis Majoris is a very luminous, massive blue-white multiple star system located in the constellation Canis Major and is one of the brightest members of the open cluster NGC 2362.
-
C.
Delta Canis Majoris
Delta Canis Majoris, also known as Wezen, is a bright F-type supergiant star in the constellation Canis Major that forms part of the prominent winter sky near Sirius.
-
D.
Theta Centauri
Theta Centauri is a bright giant star in the constellation Centaurus, visible from the Southern Hemisphere and notable as one of the constellation’s prominent stellar members.
-
E.
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.
- 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: Delta Centauri Target entity description: Delta Centauri is a bright blue-white giant star in the southern constellation Centaurus, visible to the naked eye and notable as one of its prominent stellar members.
-
A.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
-
B.
Tau Canis Majoris
Tau Canis Majoris is a very luminous, massive blue-white multiple star system located in the constellation Canis Major and is one of the brightest members of the open cluster NGC 2362.
-
C.
Delta Canis Majoris
Delta Canis Majoris, also known as Wezen, is a bright F-type supergiant star in the constellation Canis Major that forms part of the prominent winter sky near Sirius.
-
D.
Theta Centauri
Theta Centauri is a bright giant star in the constellation Centaurus, visible from the Southern Hemisphere and notable as one of the constellation’s prominent stellar members.
-
E.
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.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | star ⓘ |
| absoluteMagnitudeV | −3.0 ⓘ |
| age_Myr | tens of millions of years ⓘ |
| apparentMagnitudeV | 2.57 ⓘ |
| belongsToHemisphere | southern celestial hemisphere ⓘ |
| color | blue-white ⓘ |
| colorIndexB−V | −0.22 ⓘ |
| constellation | Centaurus NERFINISHED ⓘ |
| declination | −50° 43′ 21″ ⓘ |
| distanceFromEarth_ly | ~410 light-years ⓘ |
| distanceFromEarth_pc | ~125 parsecs ⓘ |
| effectiveTemperature_K | ~21000 ⓘ |
| evolutionaryStage | subgiant or giant phase ⓘ |
| galacticLatitude | ~+4° ⓘ |
| galacticLongitude | ~302° ⓘ |
| hasBayerDesignation |
Delta Cen
NERFINISHED
ⓘ
δ Centauri NERFINISHED ⓘ |
| hasEquinox | J2000.0 ⓘ |
| hasFlamsteedDesignation | HR 4621 NERFINISHED ⓘ |
| hasHDDesignation | HD 105435 NERFINISHED ⓘ |
| hasHIPDesignation | HIP 59232 NERFINISHED ⓘ |
| hasProperMotionDec_mas_yr | ~−1 ⓘ |
| hasProperMotionRA_mas_yr | ~−33 ⓘ |
| hasRadialVelocity_km_s | ~+5 ⓘ |
| isBrightStarRankInCentaurus | among the brightest stars in Centaurus ⓘ |
| isCatalogedIn |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| isLocatedIn | southern sky ⓘ |
| isNearbyTo |
Epsilon Centauri
NERFINISHED
ⓘ
Zeta Centauri NERFINISHED ⓘ |
| isObservedIn | optical wavelengths ⓘ |
| isPartOf | Milky Way NERFINISHED ⓘ |
| isProminentMemberOf | Centaurus constellation NERFINISHED ⓘ |
| luminosity_solar | ~4000 ⓘ |
| mass_solar | ~8 ⓘ |
| metallicityRelativeToSun | slightly sub-solar ⓘ |
| parallax_mas | ~8.0 ⓘ |
| radius_solar | ~6 ⓘ |
| rightAscension | 12h 08m 21s ⓘ |
| rotationalVelocity_km_s | ~180 ⓘ |
| spectralClass | B2 IV ⓘ |
| variableStarStatus | suspected variable ⓘ |
| visibility | visible to the naked eye ⓘ |
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: Delta Centauri Description of subject: Delta Centauri is a bright blue-white giant star in the southern constellation Centaurus, visible to the naked eye and notable as one of its prominent stellar members.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.