Sigma Sagittarii
E474414
Sigma Sagittarii is a bright blue-white giant star in the constellation Sagittarius, marking one of the prominent points of the Teapot asterism.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sigma Sagittarii canonical | 2 |
| σ Sagittarii | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618972 — 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: Sigma Sagittarii Context triple: [the Teapot, hasPart, Sigma Sagittarii]
-
A.
Gamma Sagittarii
Gamma Sagittarii is a bright star in the constellation Sagittarius that forms part of the asterism known as the Teapot.
-
B.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
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.
Zeta Sagittarii
Zeta Sagittarii is a bright multiple star system in the constellation Sagittarius, forming part of the asterism known as the Teapot.
- 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: Sigma Sagittarii Target entity description: Sigma Sagittarii is a bright blue-white giant star in the constellation Sagittarius, marking one of the prominent points of the Teapot asterism.
-
A.
Gamma Sagittarii
Gamma Sagittarii is a bright star in the constellation Sagittarius that forms part of the asterism known as the Teapot.
-
B.
Lambda Sagittarii
Lambda Sagittarii is a bright star in the constellation Sagittarius that marks the top of the Teapot asterism.
-
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.
Zeta Sagittarii
Zeta Sagittarii is a bright multiple star system in the constellation Sagittarius, forming part of the asterism known as the Teapot.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
astronomical object ⓘ giant star ⓘ star ⓘ |
| age_Myr | ~32 ⓘ |
| apparentMagnitudeV | 2.05 ⓘ |
| asterism | Teapot NERFINISHED ⓘ |
| bayerDesignation |
Sigma Sgr
NERFINISHED
ⓘ
σ Sagittarii NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| color | blue-white ⓘ |
| companionMagnitude | ~8.7 ⓘ |
| companionSeparation_arcsec | ~5.2 ⓘ |
| componentOf | Teapot asterism NERFINISHED ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| declination | −26° 17′ 48″ ⓘ |
| distanceFromEarth_ly | ~228 ⓘ |
| distanceFromEarth_pc | ~70 ⓘ |
| effectiveTemperature_K | ~20000 ⓘ |
| energySource | hydrogen fusion in core ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | main-sequence or slightly evolved B-type star ⓘ |
| flamsteedDesignation | 43 Sagittarii NERFINISHED ⓘ |
| galacticLatitude_deg | −11.36 ⓘ |
| galacticLongitude_deg | 6.40 ⓘ |
| galacticPopulation | Population I star ⓘ |
| hasCompanion | optical companion star ⓘ |
| hdNumber | HD 173300 NERFINISHED ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| hipparcosNumber | HIP 92041 ⓘ |
| hrNumber | HR 7121 NERFINISHED ⓘ |
| isBrightStar | true ⓘ |
| luminosity_solar | ~3300 ⓘ |
| marksFeature | handle of the Teapot asterism ⓘ |
| mass_solar | ~5.9 ⓘ |
| metallicity_Fe/H | ~0.0 ⓘ |
| nakedEyeVisible | true ⓘ |
| parallax_mas | 14.3 ⓘ |
| radialVelocity_km/s | −15 ⓘ |
| radius_solar | ~4.5 ⓘ |
| rightAscension | 18h 55m 15.9s ⓘ |
| rotationalVelocity_km/s | ~165 ⓘ |
| simbadIdentifier | sig Sgr NERFINISHED ⓘ |
| spectralClass | B2V ⓘ |
| variableStar | false ⓘ |
| visibleFrom | Earth 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: Sigma Sagittarii Description of subject: Sigma Sagittarii is a bright blue-white giant star in the constellation Sagittarius, marking one of the prominent points of the Teapot asterism.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
σ Sagittarii