SAO 132444
E540367
SAO 132444 is the Smithsonian Astrophysical Observatory catalog designation for Alnitak, the bright multiple star that forms the easternmost part of Orion’s Belt.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SAO 132444 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5723592 — 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 132444 Context triple: [Alnitak, hasSAODesignation, SAO 132444]
-
A.
SAO 76199
SAO 76199 is a catalogued star in the constellation Taurus, also known by the designation 23 Tauri.
-
B.
SAO 94027
SAO 94027 is the catalog designation in the Smithsonian Astrophysical Observatory Star Catalog for the bright red giant star Aldebaran in the constellation Taurus.
-
C.
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.
-
D.
SAS-1
SAS-1 is the first generation of the Serial Attached SCSI (SAS) interface standard used for high-speed data transfer between storage devices and host systems.
-
E.
SAOB
SAOB is the standard historical dictionary of the Swedish language, published by the Swedish Academy.
- 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 132444 Target entity description: SAO 132444 is the Smithsonian Astrophysical Observatory catalog designation for Alnitak, the bright multiple star that forms the easternmost part of Orion’s Belt.
-
A.
SAO 76199
SAO 76199 is a catalogued star in the constellation Taurus, also known by the designation 23 Tauri.
-
B.
SAO 94027
SAO 94027 is the catalog designation in the Smithsonian Astrophysical Observatory Star Catalog for the bright red giant star Aldebaran in the constellation Taurus.
-
C.
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.
-
D.
SAS-1
SAS-1 is the first generation of the Serial Attached SCSI (SAS) interface standard used for high-speed data transfer between storage devices and host systems.
-
E.
SAOB
SAOB is the standard historical dictionary of the Swedish language, published by the Swedish Academy.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
star designation
ⓘ
stellar catalog entry ⓘ |
| apparentMagnitudeV | about 1.7 ⓘ |
| belongsToMilkyWay | true ⓘ |
| bestSeenInMonth | January ⓘ |
| catalog | Smithsonian Astrophysical Observatory Star Catalog NERFINISHED ⓘ |
| correspondsToBayerDesignation | Zeta Orionis NERFINISHED ⓘ |
| correspondsToBD | +−01° 969 ⓘ |
| correspondsToFlamsteedDesignation | 50 Orionis NERFINISHED ⓘ |
| correspondsToHD | HD 37742 NERFINISHED ⓘ |
| correspondsToHIP | HIP 26727 NERFINISHED ⓘ |
| correspondsToHR | HR 1948 ⓘ |
| declinationSystem | ICRS NERFINISHED ⓘ |
| distanceFromEarth |
about 240 parsecs
ⓘ
about 800 light-years ⓘ |
| equatorialCoordinatesEpochJ2000 |
Dec −01° 56′ 34″
ⓘ
RA 05h 40m 45s ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasColorIndexBminusV | about −0.2 ⓘ |
| hasComponent |
Alnitak A
NERFINISHED
ⓘ
Alnitak Ab NERFINISHED ⓘ Alnitak B NERFINISHED ⓘ |
| hasParallax | about 4 milliarcseconds ⓘ |
| hasProperName | Alnitak NERFINISHED ⓘ |
| hasRadialVelocity | about +16 km/s ⓘ |
| hasSpectralClass | O-type ⓘ |
| hasTraditionalNameOrigin | Arabic ⓘ |
| hemisphereVisibility | both hemispheres ⓘ |
| isBlueSupergiant | true ⓘ |
| isBrightStar | true ⓘ |
| isHotStar | true ⓘ |
| isMassiveStar | true ⓘ |
| isMultipleStarSystem | true ⓘ |
| isPartOfAsterism | Orion's Belt NERFINISHED ⓘ |
| isUsedAsReference | for locating Orion Nebula region ⓘ |
| locatedInConstellation | Orion NERFINISHED ⓘ |
| nearbyDeepSkyObject |
Flame Nebula (NGC 2024)
NERFINISHED
ⓘ
Horsehead Nebula (Barnard 33) NERFINISHED ⓘ |
| positionInOrionsBelt | easternmost star ⓘ |
| refersTo | Alnitak NERFINISHED ⓘ |
| rightAscensionSystem | ICRS NERFINISHED ⓘ |
| spectralTypePrimary | O9.5 Iab ⓘ |
| visibleToNakedEye | true ⓘ |
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 132444 Description of subject: SAO 132444 is the Smithsonian Astrophysical Observatory catalog designation for Alnitak, the bright multiple star that forms the easternmost part of Orion’s Belt.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.