Delta Canis Majoris
E514435
Delta Canis Majoris, also known as Wezen, is a bright F-type supergiant star in the constellation Canis Major that forms part of the prominent winter sky near Sirius.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delta Canis Majoris canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5259948 — 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 Canis Majoris Context triple: [Canis Major, contains, Delta Canis Majoris]
-
A.
Beta Canis Majoris
Beta Canis Majoris is a bright blue-white giant star in the constellation Canis Major, notable as one of its most luminous and prominent members.
-
B.
Gamma Canis Majoris
Gamma Canis Majoris, also known as Muliphein, is a relatively faint blue-white star in the constellation Canis Major that forms part of the celestial "Great Dog" near the bright star Sirius.
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C.
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.
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D.
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.
-
E.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
- 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 Canis Majoris Target entity description: Delta Canis Majoris, also known as Wezen, is a bright F-type supergiant star in the constellation Canis Major that forms part of the prominent winter sky near Sirius.
-
A.
Beta Canis Majoris
Beta Canis Majoris is a bright blue-white giant star in the constellation Canis Major, notable as one of its most luminous and prominent members.
-
B.
Gamma Canis Majoris
Gamma Canis Majoris, also known as Muliphein, is a relatively faint blue-white star in the constellation Canis Major that forms part of the celestial "Great Dog" near the bright star Sirius.
-
C.
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.
-
D.
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.
-
E.
Delta Sagittarii
Delta Sagittarii is a bright giant star in the constellation Sagittarius, forming part of the prominent asterism known as the Teapot.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
F-type star
ⓘ
star ⓘ supergiant star ⓘ |
| absoluteMagnitudeV | −6.87 ⓘ |
| age | about 10 million years ⓘ |
| alternateName | Delta Canis Majoris NERFINISHED ⓘ |
| apparentMagnitudeV | 1.83 ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| colorIndexB−V | +0.67 ⓘ |
| colorIndexU−B | +0.34 ⓘ |
| declination | −26° 23′ 36″ ⓘ |
| distanceFromEarth |
approximately 1600 light-years
ⓘ
approximately 490 parsecs ⓘ |
| effectiveTemperature | about 5800 K ⓘ |
| equatorialCoordinateSystem | ICRS NERFINISHED ⓘ |
| evolutionaryStage | post-main-sequence ⓘ |
| galacticLatitude | −11.3 ⓘ |
| galacticLongitude | 238.4 ⓘ |
| hasBayerDesignation | δ Canis Majoris NERFINISHED ⓘ |
| hasBDDesignation | BD−26 1781 NERFINISHED ⓘ |
| hasCulturalSignificance | part of the prominent winter sky near Sirius ⓘ |
| hasFK5Designation | FK5 252 NERFINISHED ⓘ |
| hasFlamsteedDesignation | 25 Canis Majoris NERFINISHED ⓘ |
| hasHDDesignation | HD 54605 NERFINISHED ⓘ |
| hasHIPDesignation | HIP 34444 NERFINISHED ⓘ |
| hasHRDesignation | HR 2693 NERFINISHED ⓘ |
| hasProperName | Wezen NERFINISHED ⓘ |
| hasSAODesignation | SAO 172839 NERFINISHED ⓘ |
| isBrightStar | true ⓘ |
| isNavigationStar | true ⓘ |
| isNearStar | Sirius NERFINISHED ⓘ |
| isPartOf | Canis Major OB1 association NERFINISHED ⓘ |
| isPartOfAsterism | Winter sky near Sirius ⓘ |
| isVariableStar | suspected ⓘ |
| isVisibleToNakedEye | true ⓘ |
| locatedInConstellation | Canis Major NERFINISHED ⓘ |
| luminosity | about 50,000 times solar luminosity ⓘ |
| luminosityClass | Iab ⓘ |
| mass | about 17 solar masses ⓘ |
| metallicityFeH | approximately solar ⓘ |
| observedIn | optical wavelength ⓘ |
| parallax | 1.82 mas ⓘ |
| properMotionDec | +4.40 mas/yr ⓘ |
| properMotionRA | −3.06 mas/yr ⓘ |
| radialVelocity | +34 km/s ⓘ |
| radius | about 200 solar radii ⓘ |
| rightAscension | 07h 08m 23s ⓘ |
| spectralClass | F-type ⓘ |
| spectralType | F8 Iab ⓘ |
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 Canis Majoris Description of subject: Delta Canis Majoris, also known as Wezen, is a bright F-type supergiant star in the constellation Canis Major that forms part of the prominent winter sky near Sirius.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.