Gamma Doradus
E776904
Gamma Doradus is a variable star in the southern constellation Dorado, serving as the prototype of the Gamma Doradus class of pulsating variables.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gamma Doradus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8717249 — 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: Gamma Doradus Context triple: [Dorado, containsBrightStar, Gamma Doradus]
-
A.
Delta Centauri
Delta Centauri is a bright blue-white giant star in the southern constellation Centaurus, visible to the naked eye and notable as one of its prominent stellar members.
-
B.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
C.
Alpha Scuti
Alpha Scuti is a relatively bright giant star in the constellation Scutum, visible to the naked eye from Earth.
-
D.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
-
E.
Tau Canis Majoris
Tau Canis Majoris is a very luminous, massive blue-white multiple star system located in the constellation Canis Major and is one of the brightest members of the open cluster NGC 2362.
- 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: Gamma Doradus Target entity description: Gamma Doradus is a variable star in the southern constellation Dorado, serving as the prototype of the Gamma Doradus class of pulsating variables.
-
A.
Delta Centauri
Delta Centauri is a bright blue-white giant star in the southern constellation Centaurus, visible to the naked eye and notable as one of its prominent stellar members.
-
B.
Beta Scuti
Beta Scuti is a prominent giant star in the constellation Scutum, notable as one of its brightest members.
-
C.
Alpha Scuti
Alpha Scuti is a relatively bright giant star in the constellation Scutum, visible to the naked eye from Earth.
-
D.
Eta Canis Majoris
Eta Canis Majoris, also known as Aludra, is a luminous blue supergiant star in the constellation Canis Major and one of its brightest members.
-
E.
Tau Canis Majoris
Tau Canis Majoris is a very luminous, massive blue-white multiple star system located in the constellation Canis Major and is one of the brightest members of the open cluster NGC 2362.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Gamma Doradus variable
ⓘ
pulsating variable star ⓘ star ⓘ |
| age | about 1.5 billion years ⓘ |
| apparentMagnitudeRangeV | 4.16–4.27 ⓘ |
| apparentMagnitudeV | 4.25 ⓘ |
| BayerDesignation | γ Doradus NERFINISHED ⓘ |
| belongsTo | Milky Way NERFINISHED ⓘ |
| catalog | Henry Draper Catalogue NERFINISHED ⓘ |
| colorIndexBminusV | about +0.33 ⓘ |
| constellation | Dorado NERFINISHED ⓘ |
| declination | −51° 29′ 12″ ⓘ |
| discovererOfVariability | C. Henry et al. NERFINISHED ⓘ |
| discoveryOfVariability | 1990s ⓘ |
| distanceFromEarth |
about 102 light-years
ⓘ
about 31 parsecs ⓘ |
| effectiveTemperature | about 7,000 K ⓘ |
| FlamsteedDesignation | 3 Doradus NERFINISHED ⓘ |
| galacticPopulation | thin disk ⓘ |
| hasVariabilityAmplitude | a few hundredths of a magnitude ⓘ |
| HDNumber | HD 27290 NERFINISHED ⓘ |
| hemisphere | southern celestial hemisphere ⓘ |
| HIPNumber | HIP 19893 NERFINISHED ⓘ |
| HRNumber | HR 1338 NERFINISHED ⓘ |
| isPrototypeOf | Gamma Doradus class of variable stars NERFINISHED ⓘ |
| isVisibleToNakedEye | yes ⓘ |
| locatedIn | Dorado constellation region of the sky NERFINISHED ⓘ |
| luminosity | about 6 times solar luminosity ⓘ |
| mass | about 1.6 solar masses ⓘ |
| metallicity | near solar ⓘ |
| observedIn |
photometric surveys
ⓘ
visual band ⓘ |
| parallax | 32.04 mas ⓘ |
| properMotionDec | −15 mas/yr ⓘ |
| properMotionRA | +104 mas/yr ⓘ |
| prototypeOf | Gamma Doradus variables NERFINISHED ⓘ |
| pulsationMode | non-radial g-modes ⓘ |
| pulsationPeriod | about 0.75 days ⓘ |
| pulsationPeriodRange | 0.3–3 days ⓘ |
| radialVelocity | about +28 km/s ⓘ |
| radius | about 1.6 solar radii ⓘ |
| rightAscension | 04h 16m 01s ⓘ |
| SIMBADIdentifier | gam Dor NERFINISHED ⓘ |
| spectralClass | F-type main-sequence star ⓘ |
| spectralType | F1V ⓘ |
| variabilityMechanism | gravity-mode pulsations ⓘ |
| variableType | Gamma Doradus NERFINISHED ⓘ |
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: Gamma Doradus Description of subject: Gamma Doradus is a variable star in the southern constellation Dorado, serving as the prototype of the Gamma Doradus class of pulsating variables.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Dorado