ζ Persei
E459030
ζ Persei is a bright, massive B-type star in the constellation Perseus, notable as a prominent member of the Perseus OB2 stellar association.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ζ Persei canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617629 — 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: ζ Persei Context triple: [Perseus OB2 association, hasMember, ζ Persei]
-
A.
Deneb Algedi
Deneb Algedi is a luminous star in the constellation Capricornus, notable as its most prominent and easily identifiable stellar member.
-
B.
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.
-
C.
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.
-
D.
Alpha Capricorni
Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
-
E.
B Cassiopeiae
B Cassiopeiae is the historic supernova observed in 1572 in the constellation Cassiopeia, famously studied by Tycho Brahe and crucial to early modern astronomy.
- 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: ζ Persei Target entity description: ζ Persei is a bright, massive B-type star in the constellation Perseus, notable as a prominent member of the Perseus OB2 stellar association.
-
A.
Deneb Algedi
Deneb Algedi is a luminous star in the constellation Capricornus, notable as its most prominent and easily identifiable stellar member.
-
B.
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.
-
C.
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.
-
D.
Alpha Capricorni
Alpha Capricorni is a bright multiple star system in the constellation Capricornus, visible to the naked eye as a single star but actually composed of two widely separated components.
-
E.
B Cassiopeiae
B Cassiopeiae is the historic supernova observed in 1572 in the constellation Cassiopeia, famously studied by Tycho Brahe and crucial to early modern astronomy.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
B-type star
ⓘ
massive star ⓘ spectroscopic binary ⓘ star ⓘ star name ⓘ stellar companion ⓘ |
| absoluteMagnitudeV | about -5.2 ⓘ |
| age_Myr | ~7 ⓘ |
| apparentMagnitudeV | 2.85 ⓘ |
| associatedWith |
Perseus molecular cloud complex
NERFINISHED
ⓘ
interstellar medium studies ⓘ |
| bayerDesignation |
Zeta Persei
NERFINISHED
ⓘ
ζ Persei NERFINISHED ⓘ |
| binaryType | spectroscopic binary ⓘ |
| colorIndexBminusV | -0.19 ⓘ |
| constellation | Perseus NERFINISHED ⓘ |
| declination | +31° 53′ 01″ ⓘ |
| distanceFromEarth_ly | ~750 ⓘ |
| distanceFromEarth_pc | ~230 ⓘ |
| dominantFusionProcess | CNO cycle ⓘ |
| effectiveTemperature_K | ~21500 ⓘ |
| equatorialCoordinateEpoch | J2000 ⓘ |
| evolutionaryStage |
bright giant
ⓘ
post-main-sequence ⓘ |
| flamsteedDesignation | 44 Persei NERFINISHED ⓘ |
| galacticPopulation | young disk ⓘ |
| hasCompanion | ζ Persei B NERFINISHED ⓘ |
| hasProperName | Atik NERFINISHED ⓘ |
| locatedIn |
Milky Way
ⓘ
Orion Arm NERFINISHED ⓘ |
| luminosity_solarLuminosity | ~47000 ⓘ |
| luminosityClass | Ib ⓘ |
| mass_solarMass | ~13 ⓘ |
| memberOf |
Per OB2 association
NERFINISHED
ⓘ
Perseus OB2 association NERFINISHED ⓘ |
| metallicity_FeH | near-solar ⓘ |
| notableFor |
high luminosity
ⓘ
membership in Perseus OB2 association NERFINISHED ⓘ strong stellar winds ⓘ |
| parallax_mas | ~4.3 ⓘ |
| radialVelocity_kmPerSec | ~+22 ⓘ |
| radius_solarRadius | ~26 ⓘ |
| refersTo | ζ Persei NERFINISHED ⓘ |
| rightAscension | 03h 54m 07s ⓘ |
| rotationalVelocity_kmPerSec | ~60 ⓘ |
| spectralClass | B1 Ib ⓘ |
| spectralType | B1 ⓘ |
| usedAs | probe of interstellar gas ⓘ |
| variable | no ⓘ |
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: ζ Persei Description of subject: ζ Persei is a bright, massive B-type star in the constellation Perseus, notable as a prominent member of the Perseus OB2 stellar association.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.