Theta Centauri
E762825
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Centaurus XVIII | 1 |
| Theta Centauri canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8717096 — 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: Theta Centauri Context triple: [Centaurus, containsStar, Theta Centauri]
-
A.
Beta Centauri
Beta Centauri is a bright blue-white multiple star system and one of the most luminous and prominent stars in the southern sky.
-
B.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
-
C.
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.
-
D.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
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: Theta Centauri Target entity description: 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.
-
A.
Beta Centauri
Beta Centauri is a bright blue-white multiple star system and one of the most luminous and prominent stars in the southern sky.
-
B.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
-
C.
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.
-
D.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
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 (46)
| Predicate | Object |
|---|---|
| instanceOf |
bright giant star
ⓘ
star ⓘ |
| absoluteMagnitudeV | about 0.5 ⓘ |
| apparentMagnitudeV | 2.06 ⓘ |
| belongsToAsterism | Centaurus constellation pattern ⓘ |
| color | orange ⓘ |
| constellation | Centaurus NERFINISHED ⓘ |
| coreFusion | helium ⓘ |
| declination | −36° 22′ 12″ ⓘ |
| distanceFromEarth_ly | about 60 ⓘ |
| distanceFromEarth_pc | about 18.5 ⓘ |
| effectiveTemperature_K | about 4800 ⓘ |
| evolutionaryStage | red clump giant ⓘ |
| galacticLatitude_deg | about +20 ⓘ |
| galacticLongitude_deg | about 318 ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasBayerDesignation |
Theta Centauri
NERFINISHED
ⓘ
θ Centauri NERFINISHED ⓘ |
| hasConstellationAbbreviation | Cen NERFINISHED ⓘ |
| hasFlamsteedDesignation | 41 Centauri NERFINISHED ⓘ |
| hasHDDesignation | HD 119756 NERFINISHED ⓘ |
| hasHigherLuminosityThan | Sun NERFINISHED ⓘ |
| hasHIPDesignation | HIP 67234 NERFINISHED ⓘ |
| hasHRDesignation | HR 5235 NERFINISHED ⓘ |
| hasLargerRadiusThan | Sun NERFINISHED ⓘ |
| hemisphereVisibility | Southern Hemisphere NERFINISHED ⓘ |
| isBrighterThanApparentMagnitude | 3.0 ⓘ |
| isCatalogedIn |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| isCoolerThan | Sun NERFINISHED ⓘ |
| isPartOf | Milky Way NERFINISHED ⓘ |
| isProminentMemberOf | Centaurus NERFINISHED ⓘ |
| isSingleStar | true ⓘ |
| isUsedFor |
distance scale calibration
ⓘ
stellar evolution studies ⓘ |
| isVisibleFromLatitudeSouthOf | about +30 degrees ⓘ |
| isVisibleToNakedEye | true ⓘ |
| luminosity_solar | about 60 ⓘ |
| mass_solar | about 2.0 ⓘ |
| metallicity_FeH | near solar ⓘ |
| parallax_mas | about 54 ⓘ |
| radius_solar | about 10 ⓘ |
| rightAscension | 14h 06m 40s ⓘ |
| rotationalVelocity_km_s | about 2 ⓘ |
| spectralClass | K0III ⓘ |
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: Theta Centauri Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Bristol Centaurus
this entity surface form:
Centaurus XVIII