Aldebaran planetary system
E140933
The Aldebaran planetary system is a stellar system centered on the bright orange giant star Aldebaran, located in the constellation Taurus and known to host at least one candidate exoplanet.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Aldebaran b (disputed) | 3 |
| Aldebaran b | 1 |
| Aldebaran b (candidate) | 1 |
| Aldebaran b has minimum mass of several Jupiter masses | 1 |
| Aldebaran b is debated | 1 |
| Aldebaran planetary system canonical | 1 |
| Aldebaran system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1236506 — 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: Aldebaran planetary system Context triple: [Aldebaran, isPrimaryStarOf, Aldebaran planetary system]
-
A.
Epsilon Eridani
Epsilon Eridani is a nearby young K-type main-sequence star in the constellation Eridanus, notable for its debris disk and status as a prominent target in exoplanet and SETI searches.
-
B.
Tau Ceti
Tau Ceti is a nearby Sun-like star in the constellation Cetus, notable for its stability, potential planetary system, and historical importance as an early target in the search for extraterrestrial intelligence.
-
C.
Ursa Minor Beta
Ursa Minor Beta is a fictional planet in Douglas Adams' "The Hitchhiker's Guide to the Galaxy" series, best known as the corporate home of the Guide itself.
-
D.
Terzan 7
Terzan 7 is a relatively young, metal-rich globular cluster located in the constellation Sagittarius and dynamically associated with the Sagittarius Dwarf Spheroidal Galaxy.
-
E.
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.
- 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: Aldebaran planetary system Target entity description: The Aldebaran planetary system is a stellar system centered on the bright orange giant star Aldebaran, located in the constellation Taurus and known to host at least one candidate exoplanet.
-
A.
Epsilon Eridani
Epsilon Eridani is a nearby young K-type main-sequence star in the constellation Eridanus, notable for its debris disk and status as a prominent target in exoplanet and SETI searches.
-
B.
Tau Ceti
Tau Ceti is a nearby Sun-like star in the constellation Cetus, notable for its stability, potential planetary system, and historical importance as an early target in the search for extraterrestrial intelligence.
-
C.
Ursa Minor Beta
Ursa Minor Beta is a fictional planet in Douglas Adams' "The Hitchhiker's Guide to the Galaxy" series, best known as the corporate home of the Guide itself.
-
D.
Terzan 7
Terzan 7 is a relatively young, metal-rich globular cluster located in the constellation Sagittarius and dynamically associated with the Sagittarius Dwarf Spheroidal Galaxy.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
planetary system
ⓘ
stellar system ⓘ |
| apparentMagnitudeOfHostStar | about 0.85 ⓘ |
| belongsToGalaxy | Milky Way ⓘ |
| culturalSignificance | host star prominent in many ancient cultures ⓘ |
| declination | +16° 30′ 33″ ⓘ |
| distanceFromEarth |
approximately 20 parsecs
ⓘ
approximately 65 light-years ⓘ |
| eclipticProximity | near the ecliptic ⓘ |
| hasExoplanetCandidate |
Aldebaran B
ⓘ
surface form:
Aldebaran b
|
| hasRadialVelocityPlanetCandidate |
Aldebaran B
ⓘ
surface form:
Aldebaran b
|
| hasStar | Aldebaran ⓘ |
| hostStarAge | about 6.5 billion years ⓘ |
| hostStarBayerDesignation | Alpha Tauri ⓘ |
| hostStarColor | orange ⓘ |
| hostStarEffectiveTemperature | about 3900 K ⓘ |
| hostStarEvolutionaryStage | red giant branch ⓘ |
| hostStarFlamsteedDesignation | 87 Tauri ⓘ |
| hostStarFutureEvolution | will eventually shed outer layers and become a white dwarf ⓘ |
| hostStarHasExpandedEnvelope | yes ⓘ |
| hostStarHDDesignation | HD 29139 ⓘ |
| hostStarHIPDesignation | HIP 21421 ⓘ |
| hostStarHRDesignation | HR 1457 ⓘ |
| hostStarIsBrightestStarOfConstellation | true ⓘ |
| hostStarIsBrightStar | one of the brightest stars in the night sky ⓘ |
| hostStarLuminosity | about 400 times solar luminosity ⓘ |
| hostStarMass | about 1.1 solar masses ⓘ |
| hostStarMetallicity | near-solar metallicity ⓘ |
| hostStarParallax | about 50 milliarcseconds ⓘ |
| hostStarRadialVelocity | about 54 km/s ⓘ |
| hostStarRadius | about 44 solar radii ⓘ |
| hostStarSpectralType | K5III ⓘ |
| hostStarSurfaceGravity | low compared to the Sun ⓘ |
| hostStarTraditionalName | Aldebaran ⓘ |
| hostStarType | orange giant star ⓘ |
| hostStarVariableType | slow irregular variable ⓘ |
| locatedInConstellation | Taurus ⓘ |
| nakedEyeVisibility | host star visible to naked eye ⓘ |
| occultedByMoon | host star can be occulted by the Moon ⓘ |
| occultedByPlanets | host star can be occulted by planets ⓘ |
| planetarySystemStatus | confirmed host star with at least one candidate exoplanet ⓘ |
| planetCandidateStatus |
Aldebaran planetary system
self-linksurface differs
ⓘ
surface form:
Aldebaran b is debated
|
| planetDetectionMethod | radial velocity ⓘ |
| planetMinimumMass |
Aldebaran planetary system
self-linksurface differs
ⓘ
surface form:
Aldebaran b has minimum mass of several Jupiter masses
|
| planetOrbitalDistance | Aldebaran b semi-major axis is about 1.5 AU ⓘ |
| planetOrbitalPeriod | Aldebaran b orbital period is about 600 days ⓘ |
| rightAscension | 04h 35m 55.2s ⓘ |
| visibleFromEarth | yes ⓘ |
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: Aldebaran planetary system Description of subject: The Aldebaran planetary system is a stellar system centered on the bright orange giant star Aldebaran, located in the constellation Taurus and known to host at least one candidate exoplanet.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Aldebaran
this entity surface form:
Aldebaran b
subject surface form:
Aldebaran
this entity surface form:
Aldebaran b (candidate)
this entity surface form:
Aldebaran system
this entity surface form:
Aldebaran b (disputed)
this entity surface form:
Aldebaran b (disputed)
this entity surface form:
Aldebaran b (disputed)
Aldebaran planetary system
→
planetCandidateStatus
→
Aldebaran planetary system
self-linksurface differs
ⓘ
this entity surface form:
Aldebaran b is debated
Aldebaran planetary system
→
planetMinimumMass
→
Aldebaran planetary system
self-linksurface differs
ⓘ
this entity surface form:
Aldebaran b has minimum mass of several Jupiter masses