ξ Persei
E460829
ξ Persei is a hot, massive O-type star in the constellation Perseus, known as a bright runaway star with strong stellar winds.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Xi Persei | 5 |
| ξ Persei canonical | 3 |
| O7.5III (Xi Persei) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4617630 — 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: ξ Persei Context triple: [Perseus OB2 association, hasMember, ξ Persei]
-
A.
ζ Persei
ζ Persei is a bright, massive B-type star in the constellation Perseus, notable as a prominent member of the Perseus OB2 stellar association.
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B.
o Persei
o Persei is a bright B-type giant star in the constellation Perseus and a notable member of the Perseus OB2 stellar association.
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C.
Deneb Algedi
Deneb Algedi is a luminous star in the constellation Capricornus, notable as its most prominent and easily identifiable stellar member.
-
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.
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.
- 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: ξ Persei Target entity description: ξ Persei is a hot, massive O-type star in the constellation Perseus, known as a bright runaway star with strong stellar winds.
-
A.
ζ Persei
ζ Persei is a bright, massive B-type star in the constellation Perseus, notable as a prominent member of the Perseus OB2 stellar association.
-
B.
o Persei
o Persei is a bright B-type giant star in the constellation Perseus and a notable member of the Perseus OB2 stellar association.
-
C.
Deneb Algedi
Deneb Algedi is a luminous star in the constellation Capricornus, notable as its most prominent and easily identifiable stellar member.
-
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.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
O-type star
ⓘ
massive star ⓘ runaway star ⓘ star ⓘ |
| age | about 6 million years ⓘ |
| apparentMagnitudeV | about 4.04 ⓘ |
| associatedWith | Perseus OB2 association ⓘ |
| belongsTo | Milky Way ⓘ |
| catalogIdentifier |
BD+34 784
ⓘ
FK5 120 ⓘ HD 24912 ⓘ HIP 18614 ⓘ HR 1203 ⓘ SAO 56699 ⓘ |
| colorIndexBMinusV | about −0.24 ⓘ |
| constellation | Perseus ⓘ |
| declination | +35° 47′ 28″ ⓘ |
| distanceFromEarth |
about 1800 light-years
ⓘ
about 550 parsecs ⓘ |
| effectiveTemperature | about 35000 K ⓘ |
| equatorialCoordinateSystem | J2000 ⓘ |
| galacticLatitude | about −17 degrees ⓘ |
| galacticLongitude | about 160 degrees ⓘ |
| galacticPopulation | Population I ⓘ |
| hasFeature |
line-profile variability
ⓘ
non-radial pulsations candidate ⓘ strong UV P Cygni profiles ⓘ |
| luminosity | about 2.8e5 times solar luminosity ⓘ |
| luminosityClass | III ⓘ |
| mass | about 26 solar masses ⓘ |
| observedIn |
X-ray band
ⓘ
optical band ⓘ ultraviolet band ⓘ |
| otherName |
Menkib
ⓘ
Xi Persei ⓘ
linked to:
ξ Persei
|
| parallax | about 1.8 milliarcseconds ⓘ |
| properMotionDec | about −3.9 mas/yr ⓘ |
| properMotionRA | about 1.6 mas/yr ⓘ |
| radialVelocity | about +57 km/s ⓘ |
| radius | about 14 solar radii ⓘ |
| rightAscension | 03h 58m 57s ⓘ |
| rotationalVelocityProjected | about 200 km/s ⓘ |
| runawayStatus | runaway from its birth association ⓘ |
| spectralClass | O ⓘ |
| spectralType | O7.5III ⓘ |
| stellarWind | strong ⓘ |
| stellarWindMassLossRate | about 2e-7 solar masses per year ⓘ |
| stellarWindTerminalVelocity | about 2450 km/s ⓘ |
| variableStarType | suspected variable ⓘ |
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: ξ Persei Description of subject: ξ Persei is a hot, massive O-type star in the constellation Perseus, known as a bright runaway star with strong stellar winds.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
NGC 1499 (California Nebula)
linked to: ξ Persei
subject linked to:
NGC 1499 (California Nebula)
linked to: ξ Persei
subject linked to:
NGC 1499 (California Nebula)
linked to: ξ Persei
linked to: ξ Persei
linked to: ξ Persei