Delta Orionis
E544956
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Delta Orionis canonical | 1 |
| δ Orionis | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5723607 — 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: Delta Orionis Context triple: [Mintaka, alsoKnownAs, Delta Orionis]
-
A.
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.
-
B.
Zeta Orionis
Zeta Orionis, traditionally known as Alnitak, is a massive, hot blue multiple star system forming the easternmost star of Orion’s Belt.
-
C.
Delta Capricorni
Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
-
D.
Alpha Doradus
Alpha Doradus is a bright blue-white binary star system in the southern constellation Dorado, notable as its most luminous member.
-
E.
Epsilon Canis Majoris
Epsilon Canis Majoris, also known as Adhara, is a bright blue-white giant star and one of the most luminous stars visible from Earth, located in the constellation Canis Major.
- 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: Delta Orionis Target entity description: 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.
-
A.
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.
-
B.
Zeta Orionis
Zeta Orionis, traditionally known as Alnitak, is a massive, hot blue multiple star system forming the easternmost star of Orion’s Belt.
-
C.
Delta Capricorni
Delta Capricorni is a multiple star system in the constellation Capricornus, notable as its most luminous star and commonly known by the traditional name Deneb Algedi.
-
D.
Alpha Doradus
Alpha Doradus is a bright blue-white binary star system in the southern constellation Dorado, notable as its most luminous member.
-
E.
Epsilon Canis Majoris
Epsilon Canis Majoris, also known as Adhara, is a bright blue-white giant star and one of the most luminous stars visible from Earth, located in the constellation Canis Major.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
B-type main-sequence star
ⓘ
O-type giant star ⓘ multiple star system ⓘ |
| formsPartOfAsterism | Orion's Belt NERFINISHED ⓘ |
| hasApparentMagnitudeV | 2.23 ⓘ |
| hasBayerDesignation | δ Orionis NERFINISHED ⓘ |
| hasComponent |
Delta Orionis A
NERFINISHED
ⓘ
Delta Orionis Aa NERFINISHED ⓘ Delta Orionis Aa1 NERFINISHED ⓘ Delta Orionis Aa2 NERFINISHED ⓘ Delta Orionis Ab NERFINISHED ⓘ Delta Orionis B NERFINISHED ⓘ Delta Orionis C NERFINISHED ⓘ |
| hasDeclination | +00° 17′ 57″ ⓘ |
| hasDistanceFromEarth_ly | ~1200 ⓘ |
| hasEffectiveTemperature_K | ~30000 ⓘ |
| hasEquinox | J2000.0 ⓘ |
| hasFlamsteedDesignation | 34 Orionis NERFINISHED ⓘ |
| hasLuminosity_solarLuminosities | >100000 ⓘ |
| hasMass_solarMasses | >20 ⓘ |
| hasOrbitalPeriod_days | ~5.7 ⓘ |
| hasOtherDesignation |
HD 36486
NERFINISHED
ⓘ
HIP 25930 NERFINISHED ⓘ HR 1852 NERFINISHED ⓘ |
| hasParallax_mas | ~2.5 ⓘ |
| hasRadialVelocity_kmPerSec | ~+25 ⓘ |
| hasRightAscension | 05h 32m 00s ⓘ |
| hasSpectralType | O9.5 II ⓘ |
| hasTraditionalName | Mintaka NERFINISHED ⓘ |
| hasVariableType | eclipsing binary ⓘ |
| isBestSeenInMonth | January ⓘ |
| isBrightestComponent | Delta Orionis Aa1 NERFINISHED ⓘ |
| isEclipsingBinary | true ⓘ |
| isImportantFor |
astrophysical calibration
ⓘ
stellar evolution studies ⓘ |
| isMassiveStarSystem | true ⓘ |
| isSpectroscopicBinary | true ⓘ |
| isUsedAs | navigational reference star ⓘ |
| isVariableStar | true ⓘ |
| isWesternmostStarOf | Orion's Belt NERFINISHED ⓘ |
| locatedInConstellation | Orion NERFINISHED ⓘ |
| visibleFrom | both hemispheres ⓘ |
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: Delta Orionis Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
δ Orionis