Gamma Eridani
E562785
Gamma Eridani, traditionally known as Zaurak, is a red giant star in the constellation Eridanus visible to the naked eye.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gamma Eridani canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5723767 — 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: Gamma Eridani Context triple: [Zaurak, BayerDesignation, Gamma Eridani]
-
A.
Beta Eridani
Beta Eridani, traditionally known as Cursa, is a bright blue-white giant star in the constellation Eridanus visible to the naked eye.
-
B.
Alpha Eridani
Alpha Eridani, traditionally known as Achernar, is a bright, rapidly rotating blue-white star marking the southern end of the constellation Eridanus.
-
C.
Epsilon Microscopii
Epsilon Microscopii is a relatively bright star located in the southern constellation Microscopium.
-
D.
Zeta Sagittarii
Zeta Sagittarii is a bright multiple star system in the constellation Sagittarius, forming part of the asterism known as the Teapot.
-
E.
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.
- 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: Gamma Eridani Target entity description: Gamma Eridani, traditionally known as Zaurak, is a red giant star in the constellation Eridanus visible to the naked eye.
-
A.
Beta Eridani
Beta Eridani, traditionally known as Cursa, is a bright blue-white giant star in the constellation Eridanus visible to the naked eye.
-
B.
Alpha Eridani
Alpha Eridani, traditionally known as Achernar, is a bright, rapidly rotating blue-white star marking the southern end of the constellation Eridanus.
-
C.
Epsilon Microscopii
Epsilon Microscopii is a relatively bright star located in the southern constellation Microscopium.
-
D.
Zeta Sagittarii
Zeta Sagittarii is a bright multiple star system in the constellation Sagittarius, forming part of the asterism known as the Teapot.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
red giant star
ⓘ
star ⓘ |
| absoluteMagnitudeV | −1.23 ⓘ |
| ageGyr | about 2.0 ⓘ |
| apparentMagnitudeV | 2.95 ⓘ |
| approvedNameAuthority | International Astronomical Union NERFINISHED ⓘ |
| approvedNameYear | 2016 ⓘ |
| bayerDesignation | γ Eridani NERFINISHED ⓘ |
| belongsToAsterism | Eridanus constellation pattern ⓘ |
| catalog |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| colorIndexB−V | +1.60 ⓘ |
| colorIndexU−B | +1.86 ⓘ |
| constellation | Eridanus NERFINISHED ⓘ |
| declination | −13° 30′ 30″ ⓘ |
| distanceFromEarthLightYears | approximately 245 ⓘ |
| effectiveTemperatureKelvin | about 3800 ⓘ |
| equatorialCoordinateEpoch | J2000 ⓘ |
| evolutionaryStage | asymptotic giant branch star ⓘ |
| flamsteedDesignation | 10 Eridani NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasCompanions | no known stellar companions ⓘ |
| hasIAUApprovedName | Zaurak NERFINISHED ⓘ |
| hasTraditionalName | Zaurak NERFINISHED ⓘ |
| hdDesignation | HD 219215 NERFINISHED ⓘ |
| hemisphereVisibility |
Southern Hemisphere
NERFINISHED
ⓘ
part of Northern Hemisphere ⓘ |
| hipparcosDesignation | HIP 11407 NERFINISHED ⓘ |
| hrDesignation | HR 1084 NERFINISHED ⓘ |
| luminositySolar | about 860 ⓘ |
| massSolar | about 2.5 ⓘ |
| metallicityFeH | approximately 0.0 ⓘ |
| nameEtymology | Arabic for “boat” or “small boat” ⓘ |
| observability | best seen from southern and equatorial latitudes ⓘ |
| parallaxErrorMilliarcseconds | 0.18 ⓘ |
| parallaxMilliarcseconds | 13.28 ⓘ |
| properMotionDecmasPerYear | −188.94 ⓘ |
| properMotionRAmasPerYear | +76.75 ⓘ |
| radialVelocityKmPerSec | +13 ⓘ |
| radiusSolar | about 75 ⓘ |
| rightAscension | 03h 58m 01s ⓘ |
| simbadIdentifier | gam Eri NERFINISHED ⓘ |
| spectralClass | M1III ⓘ |
| traditionalName | Zaurak NERFINISHED ⓘ |
| variableStarType | suspected variable ⓘ |
| visibleTo | naked eye ⓘ |
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: Gamma Eridani Description of subject: Gamma Eridani, traditionally known as Zaurak, is a red giant star in the constellation Eridanus visible to the naked eye.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Zaurak