Gamma Orionis
E554482
Gamma Orionis, better known as Bellatrix, is a bright blue giant star in the constellation Orion that serves as one of its prominent shoulder stars.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Gamma Orionis canonical | 1 |
| γ Orionis | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5775415 — 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 Orionis Context triple: [Bellatrix, otherName, Gamma Orionis]
-
A.
Delta Orionis
Delta Orionis, traditionally known as Mintaka, is a multiple star system that forms the westernmost star in Orion’s Belt and serves as an important navigational and astrophysical reference point.
-
B.
Epsilon Orionis
Epsilon Orionis, traditionally known as Alnilam, is a luminous blue supergiant star forming the central "belt" star in the constellation Orion.
-
C.
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.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Zeta Orionis
Zeta Orionis, traditionally known as Alnitak, is a massive, hot blue multiple star system forming the easternmost star of Orion’s Belt.
- 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 Orionis Target entity description: Gamma Orionis, better known as Bellatrix, is a bright blue giant star in the constellation Orion that serves as one of its prominent shoulder stars.
-
A.
Delta Orionis
Delta Orionis, traditionally known as Mintaka, is a multiple star system that forms the westernmost star in Orion’s Belt and serves as an important navigational and astrophysical reference point.
-
B.
Epsilon Orionis
Epsilon Orionis, traditionally known as Alnilam, is a luminous blue supergiant star forming the central "belt" star in the constellation Orion.
-
C.
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.
-
D.
Beta Crucis
Beta Crucis, also known as Mimosa, is a bright blue giant star in the Southern Cross constellation and one of the most prominent navigational stars in the southern sky.
-
E.
Zeta Orionis
Zeta Orionis, traditionally known as Alnitak, is a massive, hot blue multiple star system forming the easternmost star of Orion’s Belt.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
blue giant star
ⓘ
star ⓘ |
| hasAge | about 25 million years ⓘ |
| hasApparentMagnitudeV | 1.64 ⓘ |
| hasBayerDesignation | γ Orionis NERFINISHED ⓘ |
| hasBDDesignation | +06 919 NERFINISHED ⓘ |
| hasColorIndexBMinusV | −0.21 ⓘ |
| hasColorIndexUMinusB | −0.88 ⓘ |
| hasDeclinationJ2000 | +06° 20′ 59″ ⓘ |
| hasDistanceFromSun |
approximately 250 light-years
ⓘ
approximately 77 parsecs ⓘ |
| hasEffectiveTemperature | about 21,500 K ⓘ |
| hasEquatorialCoordinatesEpoch | J2000 ⓘ |
| hasFlamsteedDesignation | 24 Orionis NERFINISHED ⓘ |
| hasHenryDraperDesignation | HD 35468 NERFINISHED ⓘ |
| hasHipparcosDesignation | HIP 25336 NERFINISHED ⓘ |
| hasHRDesignation | HR 1790 NERFINISHED ⓘ |
| hasIAUApprovedName | Bellatrix NERFINISHED ⓘ |
| hasIAUNameApprovalYear | 2016 ⓘ |
| hasLuminosity | about 9,000 times solar luminosity ⓘ |
| hasMass | about 7.7 solar masses ⓘ |
| hasParallax | 12.92 mas ⓘ |
| hasParallaxError | 0.36 mas ⓘ |
| hasProperMotionDec | −12.46 mas/yr ⓘ |
| hasProperMotionRA | −8.75 mas/yr ⓘ |
| hasProperName | Bellatrix NERFINISHED ⓘ |
| hasRadialVelocity | +18 km/s ⓘ |
| hasRadius | about 5.8 solar radii ⓘ |
| hasRightAscensionJ2000 | 05h 25m 07.9s ⓘ |
| hasSIMBADIdentifier | gam Ori NERFINISHED ⓘ |
| hasSpectralType | B2III ⓘ |
| hasSpectralVariability | true ⓘ |
| hasTraditionalNameMeaning | female warrior ⓘ |
| hasTraditionalNameOriginLanguage | Latin ⓘ |
| hasVariableApparentMagnitudeRange | 1.59–1.64 ⓘ |
| isCataloguedIn |
Bright Star Catalogue
NERFINISHED
ⓘ
Henry Draper Catalogue NERFINISHED ⓘ Hipparcos Catalogue NERFINISHED ⓘ |
| isColor | blue ⓘ |
| isNotMemberOf | Orion OB1 association NERFINISHED ⓘ |
| isOneOfBrightestStarsIn | Orion NERFINISHED ⓘ |
| isPartOfAsterism | Orion NERFINISHED ⓘ |
| isShoulderStarOf | Orion NERFINISHED ⓘ |
| isSpectralLuminosityClass | giant ⓘ |
| isVisibleToNakedEye | true ⓘ |
| locatedInConstellation | Orion 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: Gamma Orionis Description of subject: Gamma Orionis, better known as Bellatrix, is a bright blue giant star in the constellation Orion that serves as one of its prominent shoulder stars.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.