Phi Sagittarii
E459123
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Phi Sagittarii canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4618966 — 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: Phi Sagittarii Context triple: [the Teapot, hasPart, Phi Sagittarii]
-
A.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
-
B.
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.
-
C.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
D.
Alpha Capricorni
Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
-
E.
Gamma Capricorni
Gamma Capricorni is a relatively bright star in the constellation Capricornus, visible to the naked eye and used as a reference point in that region of 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: Phi Sagittarii Target entity description: 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.
-
A.
Epsilon Sagittarii
Epsilon Sagittarii is a prominent binary star system in the constellation Sagittarius, notable as one of its most luminous and easily visible stars.
-
B.
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.
-
C.
Epsilon Crucis
Epsilon Crucis is a bright star in the Southern Cross constellation, prominently featured on the Australian national flag.
-
D.
Alpha Capricorni
Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
-
E.
Gamma Capricorni
Gamma Capricorni is a relatively bright star in the constellation Capricornus, visible to the naked eye and used as a reference point in that region of the night sky.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
giant star ⓘ star ⓘ |
| age_Myr | about 100 ⓘ |
| apparentMagnitudeV | 3.17 ⓘ |
| asterism | Teapot NERFINISHED ⓘ |
| bayerDesignation |
Phi Sgr
NERFINISHED
ⓘ
φ Sagittarii NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| catalogIdentifier |
BD−27 13010
NERFINISHED
ⓘ
HD 173300 NERFINISHED ⓘ HIP 92041 NERFINISHED ⓘ HR 7042 NERFINISHED ⓘ SAO 187602 NERFINISHED ⓘ |
| colorIndexB−V | −0.09 ⓘ |
| constellation | Sagittarius NERFINISHED ⓘ |
| coreFusion | helium shell or advanced hydrogen shell burning ⓘ |
| declination | −26° 59′ 00″ ⓘ |
| distanceFromEarth_ly | approximately 260 light-years ⓘ |
| distanceFromEarth_pc | approximately 80 parsecs ⓘ |
| dominantColor | blue-white ⓘ |
| effectiveTemperature_K | about 12000 ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | post-main-sequence ⓘ |
| formsPartOf | Sagittarius Teapot asterism NERFINISHED ⓘ |
| galacticLatitude_deg | about −8 ⓘ |
| galacticLongitude_deg | about 7 ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasPhotometricBand |
Johnson B
NERFINISHED
ⓘ
Johnson V ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| locatedIn | Sagittarius constellation region near the Galactic Center ⓘ |
| luminosity_solar | about 500 ⓘ |
| mass_solar | about 4.5 ⓘ |
| opticalCompanion | yes ⓘ |
| opticalCompanionDescription | has a faint optical companion star at small angular separation ⓘ |
| parallax_mas | about 12.5 ⓘ |
| properMotionDec_mas/yr | about −39 ⓘ |
| properMotionRA_mas/yr | about −7 ⓘ |
| radialVelocity_km/s | approximately −13 ⓘ |
| radius_solar | about 5 ⓘ |
| rightAscension | 18h 43m 12s ⓘ |
| rotationalVelocity_km/s | about 70 ⓘ |
| skyRole | navigation reference star in Sagittarius region ⓘ |
| spectralClass | B8II ⓘ |
| variableStar | no ⓘ |
| visibleFrom |
Northern Hemisphere
NERFINISHED
ⓘ
Southern Hemisphere 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: Phi Sagittarii Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.