Beta Tucanae
E495196
Beta Tucanae is a multiple star system in the southern constellation Tucana, visible to the naked eye and notable for its bright, closely spaced stellar components.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Beta Tucanae canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5089077 — 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 Tucanae Context triple: [Tucana, contains, Beta Tucanae]
-
A.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
B.
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.
-
C.
Alpha Telescopii
Alpha Telescopii is a blue-white giant star that serves as the primary luminary of the southern constellation Telescopium.
-
D.
Gamma Crucis
Gamma Crucis is a bright red giant star in the constellation Crux, prominently visible as one of the main stars forming the Southern Cross.
-
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: Beta Tucanae Target entity description: Beta Tucanae is a multiple star system in the southern constellation Tucana, visible to the naked eye and notable for its bright, closely spaced stellar components.
-
A.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
B.
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.
-
C.
Alpha Telescopii
Alpha Telescopii is a blue-white giant star that serves as the primary luminary of the southern constellation Telescopium.
-
D.
Gamma Crucis
Gamma Crucis is a bright red giant star in the constellation Crux, prominently visible as one of the main stars forming the Southern Cross.
-
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 (41)
| Predicate | Object |
|---|---|
| instanceOf |
main-sequence star
ⓘ
multiple star system ⓘ |
| belongsTo | Milky Way galaxy NERFINISHED ⓘ |
| hasAge | a few hundred million years ⓘ |
| hasApparentMagnitude |
about 4.36
ⓘ
about 4.54 ⓘ approximately 4.37 ⓘ |
| hasBayerDesignation | β Tucanae NERFINISHED ⓘ |
| hasColorIndexBminusV | approximately −0.05 ⓘ |
| hasComponent |
Beta Tucanae A
NERFINISHED
ⓘ
Beta Tucanae B NERFINISHED ⓘ Beta Tucanae C NERFINISHED ⓘ Beta Tucanae D NERFINISHED ⓘ Beta Tucanae E NERFINISHED ⓘ Beta Tucanae F NERFINISHED ⓘ |
| hasComponentSeparation | about 27 arcseconds between main visual pair ⓘ |
| hasDeclination | −64° 17′ 38″ ⓘ |
| hasDistanceFromEarth |
approximately 140 light-years
ⓘ
approximately 43 parsecs ⓘ |
| hasEffectiveTemperature | about 10500 K (dominant components) ⓘ |
| hasFlamsteedDesignation |
Beta² Tucanae
NERFINISHED
ⓘ
Beta¹ Tucanae NERFINISHED ⓘ |
| hasGalacticPopulation | thin disk ⓘ |
| hasLuminosityClass | V ⓘ |
| hasMass | about 2.5 solar masses for each main component ⓘ |
| hasObservationMethod |
astrometric measurement
ⓘ
spectroscopic analysis ⓘ visual binary observation ⓘ |
| hasParallax | about 23 milliarcseconds ⓘ |
| hasProperMotion | significant in right ascension and declination ⓘ |
| hasRadialVelocity | approximately +7 km/s ⓘ |
| hasRightAscension | 23h 39m 20s ⓘ |
| hasSpectralType |
B9V
ⓘ
B9V (combined light dominated) ⓘ |
| isCatalogedIn |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| isInHemisphere | southern celestial hemisphere ⓘ |
| isNotableFor | bright closely spaced stellar components ⓘ |
| isVisibleTo | naked eye ⓘ |
| locatedInConstellation | Tucana 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: Beta Tucanae Description of subject: Beta Tucanae is a multiple star system in the southern constellation Tucana, visible to the naked eye and notable for its bright, closely spaced stellar components.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Tucana