Beta Centauri
E481657
B-type star system
astronomical object
multiple star system
spectroscopic binary
star
stellar system
visual binary
Beta Centauri is a bright blue-white multiple star system and one of the most luminous and prominent stars in the southern sky.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Beta Centauri canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4943582 — 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: Beta Centauri Context triple: [Centaurus constellation region, contains, Beta Centauri]
-
A.
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.
-
B.
Gamma Sagittarii
Gamma Sagittarii is a bright star in the constellation Sagittarius that forms part of the asterism known as the Teapot.
-
C.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
-
D.
Phi Sagittarii
Phi Sagittarii is a bright B-type giant star in the constellation Sagittarius, notable as one of the stars forming the asterism known as the Teapot.
-
E.
Alpha Centauri
Alpha Centauri is the closest star system to the Solar System, consisting of a triple-star arrangement that includes the Sun-like stars Alpha Centauri A and B and the red dwarf Proxima Centauri.
- 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: Beta Centauri Target entity description: Beta Centauri is a bright blue-white multiple star system and one of the most luminous and prominent stars in the southern sky.
-
A.
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.
-
B.
Gamma Sagittarii
Gamma Sagittarii is a bright star in the constellation Sagittarius that forms part of the asterism known as the Teapot.
-
C.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
-
D.
Phi Sagittarii
Phi Sagittarii is a bright B-type giant star in the constellation Sagittarius, notable as one of the stars forming the asterism known as the Teapot.
-
E.
Alpha Centauri
Alpha Centauri is the closest star system to the Solar System, consisting of a triple-star arrangement that includes the Sun-like stars Alpha Centauri A and B and the red dwarf Proxima Centauri.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star system
ⓘ
astronomical object ⓘ multiple star system ⓘ spectroscopic binary ⓘ star ⓘ star ⓘ star ⓘ stellar system ⓘ visual binary ⓘ |
| alsoKnownAs |
Agena
NERFINISHED
ⓘ
Beta Cen NERFINISHED ⓘ Hadar NERFINISHED ⓘ β Centauri NERFINISHED ⓘ |
| hasAngularSeparation_arcsec | 1.3 ⓘ |
| hasApparentMagnitudeV |
0.6
ⓘ
0.61 ⓘ |
| hasBayerDesignation | β Centauri NERFINISHED ⓘ |
| hasColor | blue-white ⓘ |
| hasColorIndexBMinusV | -0.23 ⓘ |
| hasColorIndexUMinusB | -0.95 ⓘ |
| hasCompanionType | massive B-type stars ⓘ |
| hasComponent |
Beta Centauri A
NERFINISHED
ⓘ
Beta Centauri B NERFINISHED ⓘ Beta Centauri C NERFINISHED ⓘ |
| hasConstellation | Centaurus NERFINISHED ⓘ |
| hasDeclination | −60° 22′ 23″ ⓘ |
| hasDistanceFromEarth_ly | ~390 ⓘ |
| hasDistanceFromEarth_pc | ~120 ⓘ |
| hasEffectiveTemperature_K | ~25000 ⓘ |
| hasEquinox | J2000.0 ⓘ |
| hasFlamsteedDesignation | 4 Centauri NERFINISHED ⓘ |
| hasGalacticLatitude_deg | +0.35 ⓘ |
| hasGalacticLongitude_deg | 311.77 ⓘ |
| hasLuminosityMultipleOfSun | >10000 ⓘ |
| hasMassMultipleOfSun | >10 ⓘ |
| hasNumberOfComponents | 3 ⓘ |
| hasParallax_mas | 8.66 ⓘ |
| hasParallaxError_mas | 0.16 ⓘ |
| hasProperMotionDec_masPerYear | -13.04 ⓘ |
| hasProperMotionRA_masPerYear | -33.87 ⓘ |
| hasRadialVelocity_kmPerSec | +4 ⓘ |
| hasRightAscension | 14h 03m 49s ⓘ |
| hasRotationalVelocity_kmPerSec | >100 ⓘ |
| hasSpectralClass |
B1 II
ⓘ
B1 III ⓘ |
| hasStellarClassification |
B1 II
ⓘ
B1 III ⓘ |
| hasVariableType | suspected β Cephei-type pulsator ⓘ |
| isAmong | brightest stars in the night sky ⓘ |
| isInConstellation | Centaurus NERFINISHED ⓘ |
| isLocatedIn | Milky Way galaxy NERFINISHED ⓘ |
| isOneOfBrightestStarsIn |
constellation Centaurus
ⓘ
southern sky ⓘ |
| isPartOfAsterism | Southern Cross pointer stars NERFINISHED ⓘ |
| isPointerStarFor | Crux NERFINISHED ⓘ |
| isVisibleToNakedEye | true ⓘ |
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: Beta Centauri Description of subject: Beta Centauri is a bright blue-white multiple star system and one of the most luminous and prominent stars in the southern sky.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.