Tau Ceti f
E161147
Tau Ceti f is a potentially rocky exoplanet candidate orbiting the nearby Sun-like star Tau Ceti, located within or near the star’s habitable zone.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tau Ceti f canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1406455 — 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: Tau Ceti f Context triple: [Tau Ceti, hasCandidatePlanet, Tau Ceti f]
-
A.
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.
-
B.
Delta Cancri
Delta Cancri is a prominent star in the constellation Cancer, known as Asellus Australis and used as a reference point near the Beehive Cluster in the night sky.
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C.
Gamma Cancri
Gamma Cancri is a white giant star in the constellation Cancer, visible to the naked eye and commonly used as a reference point in the night sky.
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D.
Beta Cancri
Beta Cancri is a prominent orange giant star in the constellation Cancer, notable as one of its most luminous and easily visible members.
-
E.
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.
- 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: Tau Ceti f Target entity description: Tau Ceti f is a potentially rocky exoplanet candidate orbiting the nearby Sun-like star Tau Ceti, located within or near the star’s habitable zone.
-
A.
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.
-
B.
Delta Cancri
Delta Cancri is a prominent star in the constellation Cancer, known as Asellus Australis and used as a reference point near the Beehive Cluster in the night sky.
-
C.
Gamma Cancri
Gamma Cancri is a white giant star in the constellation Cancer, visible to the naked eye and commonly used as a reference point in the night sky.
-
D.
Beta Cancri
Beta Cancri is a prominent orange giant star in the constellation Cancer, notable as one of its most luminous and easily visible members.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
exoplanet candidate
ⓘ
potentially rocky planet ⓘ super-Earth candidate ⓘ |
| alternativeDescription | outer super-Earth candidate in the Tau Ceti system ⓘ |
| catalogCategory | nearby exoplanet candidate ⓘ |
| confirmationStatus | unconfirmed ⓘ |
| constellation | Cetus ⓘ |
| dataSource | high-precision radial-velocity measurements ⓘ |
| detectionInstruments |
HARPS spectrograph
ⓘ
UCLES spectrograph ⓘ |
| discoveredBy | Mikko Tuomi et al. ⓘ |
| discoveryMethod | radial velocity ⓘ |
| discoveryStatus | planet candidate ⓘ |
| discoveryYear | 2012 ⓘ |
| distanceFromEarth |
about 11.9 light-years
ⓘ
about 3.6 parsecs ⓘ |
| equilibriumTemperature | colder than Earth ⓘ |
| existenceCertainty | contested ⓘ |
| galacticLocation | Milky Way ⓘ |
| habitabilityStatus | potentially habitable but uncertain ⓘ |
| hostStar | Tau Ceti ⓘ |
| hostStarAge | older than the Sun ⓘ |
| hostStarSimilarityToSun | Sun-like but slightly smaller and cooler ⓘ |
| hostStarSpectralClass | G-type main-sequence star ⓘ |
| hostStarType | G8.5V ⓘ |
| inHabitableZone | near outer edge ⓘ |
| locatedIn |
Tau Ceti
ⓘ
surface form:
Tau Ceti planetary system
|
| massCategory | super-Earth ⓘ |
| minimumMass | about 6.6 Earth masses ⓘ |
| observationChallenge | signal may be affected by stellar activity or noise ⓘ |
| orbitalPeriod | about 640 days ⓘ |
| orbitalZone | outer region of Tau Ceti’s habitable zone ⓘ |
| orbits | Tau Ceti ⓘ |
| planetarySystemMultiplicity | multi-planet candidate system ⓘ |
| planetType | non-transiting candidate ⓘ |
| potentialSurfaceConditions | could allow liquid water with sufficient greenhouse warming ⓘ |
| radialVelocityAmplitude | low ⓘ |
| researchInterest | target for studies of nearby potentially habitable planets ⓘ |
| semiMajorAxis | about 1.35 AU ⓘ |
| sharesSystemWith |
Tau Ceti b
ⓘ
Tau Ceti c ⓘ Tau Ceti d ⓘ Tau Ceti e ⓘ |
| signalNature | low-amplitude radial-velocity signal ⓘ |
| stellarEnvironment | orbits a relatively quiet star ⓘ |
| surfaceType | likely rocky ⓘ |
| systemMetallicityContext | orbits a metal-poor star ⓘ |
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: Tau Ceti f Description of subject: Tau Ceti f is a potentially rocky exoplanet candidate orbiting the nearby Sun-like star Tau Ceti, located within or near the star’s habitable zone.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.