SAO 251145
E612506
SAO 251145 is a catalog designation for Epsilon Crucis, a bright red giant star in the Southern Cross constellation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SAO 251145 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6691267 — 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: SAO 251145 Context triple: [Epsilon Crucis, catalogIdentifier, SAO 251145]
-
A.
SAO 113271
SAO 113271 is the Smithsonian Astrophysical Observatory (SAO) Star Catalog designation for the red supergiant star Betelgeuse in the constellation Orion.
-
B.
SAO 209384
SAO 209384 is a catalog designation for Kaus Australis, the brightest star in the constellation Sagittarius and a prominent B-type giant in the Teapot asterism.
-
C.
SAO 76199
SAO 76199 is a catalogued star in the constellation Taurus, also known by the designation 23 Tauri.
-
D.
SAO 98167
SAO 98167 is the star Asellus Australis, a bright G-type giant in the constellation Cancer that forms part of the Beehive Cluster region.
-
E.
SAO 132220
SAO 132220 is a catalog designation for Mintaka, one of the three prominent stars forming Orion’s Belt in the constellation Orion.
- 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: SAO 251145 Target entity description: SAO 251145 is a catalog designation for Epsilon Crucis, a bright red giant star in the Southern Cross constellation.
-
A.
SAO 113271
SAO 113271 is the Smithsonian Astrophysical Observatory (SAO) Star Catalog designation for the red supergiant star Betelgeuse in the constellation Orion.
-
B.
SAO 209384
SAO 209384 is a catalog designation for Kaus Australis, the brightest star in the constellation Sagittarius and a prominent B-type giant in the Teapot asterism.
-
C.
SAO 76199
SAO 76199 is a catalogued star in the constellation Taurus, also known by the designation 23 Tauri.
-
D.
SAO 98167
SAO 98167 is the star Asellus Australis, a bright G-type giant in the constellation Cancer that forms part of the Beehive Cluster region.
-
E.
SAO 132220
SAO 132220 is a catalog designation for Mintaka, one of the three prominent stars forming Orion’s Belt in the constellation Orion.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
red giant star
ⓘ
star ⓘ |
| alsoKnownAs |
Epsilon Crucis
NERFINISHED
ⓘ
HD 105707 NERFINISHED ⓘ HIP 59316 NERFINISHED ⓘ HR 4638 NERFINISHED ⓘ ε Crucis NERFINISHED ⓘ |
| angularSeparationFromAcrux_deg | about 4 ⓘ |
| angularSeparationFromGacrux_deg | about 4 ⓘ |
| apparentMagnitudeV | 3.58 ⓘ |
| bayerDesignation | Epsilon Crucis NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| catalog | SAO catalogue NERFINISHED ⓘ |
| color | red-orange ⓘ |
| constellation | Crux NERFINISHED ⓘ |
| declination | −60° 24′ 05″ ⓘ |
| distanceFromEarth_ly | approximately 230 ⓘ |
| distanceFromEarth_pc | approximately 70 ⓘ |
| effectiveTemperature_K | about 4300 ⓘ |
| equatorialCoordinateEpoch | J2000 ⓘ |
| evolutionaryStage | helium-burning red giant ⓘ |
| flamsteedDesignation | none ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasHDIdentifier | HD 105707 NERFINISHED ⓘ |
| hasHIPIdentifier | HIP 59316 NERFINISHED ⓘ |
| hasHRIdentifier | HR 4638 NERFINISHED ⓘ |
| hasProperName | no widely used IAU-approved proper name ⓘ |
| hasSAOIdentifier | SAO 251145 ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| isPartOf | Southern Cross asterism NERFINISHED ⓘ |
| luminosity_solar | about 700 ⓘ |
| mass_solar | about 1.5 ⓘ |
| metallicity_FeH | near solar ⓘ |
| nakedEyeVisible | yes ⓘ |
| observedIn | optical band ⓘ |
| parallax_mas | about 14.3 ⓘ |
| radialVelocity_kmPerSec | about +17 ⓘ |
| radius_solar | about 30 ⓘ |
| rightAscension | 12h 21m 21s ⓘ |
| roleInAsterism | forms the left-hand star of the Southern Cross ⓘ |
| spectralClass | K3III ⓘ |
| variable | no ⓘ |
| visibilityHemisphere | southern ⓘ |
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: SAO 251145 Description of subject: SAO 251145 is a catalog designation for Epsilon Crucis, a bright red giant star in the Southern Cross constellation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.