Tau Sagittarii
E459122
Tau Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the well-known asterism called the Teapot.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tau Sagittarii canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618965 — 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: Tau Sagittarii Context triple: [the Teapot, hasPart, Tau Sagittarii]
-
A.
Scorpius
Scorpius is a prominent zodiac constellation in the southern sky, easily recognized by its curved "scorpion's tail" and bright red supergiant star Antares.
-
B.
Cygnus
Cygnus is a genus of large waterfowl commonly known as swans, recognized for their long necks, graceful appearance, and association with lakes and rivers across the Northern Hemisphere.
-
C.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
D.
Monoceros
Monoceros is a faint constellation of the celestial equator known for containing several notable nebulae and star-forming regions, located between Orion and Hydra.
-
E.
Praesepe
Praesepe is a bright open star cluster in the constellation Cancer, also known as the Beehive Cluster, visible to the naked eye as a hazy patch in the night sky.
- 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: Tau Sagittarii Target entity description: Tau Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the well-known asterism called the Teapot.
-
A.
Scorpius
Scorpius is a prominent zodiac constellation in the southern sky, easily recognized by its curved "scorpion's tail" and bright red supergiant star Antares.
-
B.
Cygnus
Cygnus is a genus of large waterfowl commonly known as swans, recognized for their long necks, graceful appearance, and association with lakes and rivers across the Northern Hemisphere.
-
C.
Cygnis Insignis
Cygnis Insignis is the Latin motto of Western Australia, traditionally translated as “Distinguished by the Swan” and referring to the state’s emblematic black swan.
-
D.
Monoceros
Monoceros is a faint constellation of the celestial equator known for containing several notable nebulae and star-forming regions, located between Orion and Hydra.
-
E.
Praesepe
Praesepe is a bright open star cluster in the constellation Cancer, also known as the Beehive Cluster, visible to the naked eye as a hazy patch in the night sky.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bright giant star
ⓘ
giant star ⓘ star ⓘ |
| age | a few billion years ⓘ |
| apparentMagnitudeV | 3.32 ⓘ |
| BayerDesignation |
Tau Sgr
ⓘ
τ Sagittarii ⓘ |
| colorIndexBminusV | about +1.1 ⓘ |
| constellation | Sagittarius ⓘ |
| coreFusion | helium-burning core ⓘ |
| declination | approximately −27° 40′ ⓘ |
| distanceFromEarth |
about 120 light-years
ⓘ
about 37 parsecs ⓘ |
| effectiveTemperature | about 4600 K ⓘ |
| equatorialCoordinateSystem |
ICRS
ⓘ
linked to:
International Celestial Reference System
|
| evolutionaryStage | red clump giant ⓘ |
| FlamsteedDesignation | 47 Sagittarii ⓘ |
| formsAsterismWith |
Delta Sagittarii
ⓘ
Epsilon Sagittarii ⓘ Gamma Sagittarii ⓘ Lambda Sagittarii ⓘ Phi Sagittarii ⓘ Zeta Sagittarii ⓘ |
| formsPartOf | handle of the Teapot asterism ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasColor | orange ⓘ |
| HDNumber | HD 178524 ⓘ |
| hemisphereVisibility |
low southern altitudes in northern hemisphere
ⓘ
southern sky ⓘ |
| HIPNumber | HIP 94141 ⓘ |
| HRNumber | HR 7264 ⓘ |
| isPartOf |
Sagittarius constellation
ⓘ
linked to:
Sagittarius
Teapot asterism ⓘ |
| locatedIn |
Milky Way
ⓘ
Sagittarius constellation region near the Galactic Center ⓘ |
| luminosity | about 50 times the luminosity of the Sun ⓘ |
| mass | about 1.5 times the mass of the Sun ⓘ |
| metallicity | near-solar ⓘ |
| parallax | about 27 milliarcseconds ⓘ |
| properMotionDec | about −184 mas/yr ⓘ |
| properMotionRA | about +88 mas/yr ⓘ |
| radialVelocity | about −20 km/s ⓘ |
| radius | about 11 times the radius of the Sun ⓘ |
| rightAscension | approximately 19h 06m ⓘ |
| SIMBADIdentifier |
tau Sgr
ⓘ
linked to:
Tau Sgr
|
| spectralClass | K1III ⓘ |
| variableStar | not known to be significantly variable ⓘ |
| visibleToNakedEye | 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: Tau Sagittarii Description of subject: Tau Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the well-known asterism called the Teapot.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.