Tau Ceti
E31702
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.
Observed surface forms (1)
| Surface form | As subject | As object |
|---|---|---|
| τ Ceti | 0 | 1 |
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
G-type star
→
astronomical object → main-sequence star → single star → |
| age_Gyr |
about 5.8
→
older than the Sun → |
| apparentMagnitudeV | 3.50 → |
| BayerDesignation |
Tau Ceti
self-linksurface differs
→
surface form: "τ Ceti"
|
| colorIndexB−V | 0.72 → |
| constellation | Cetus → |
| culturalRole | frequent setting in science fiction → |
| debrisDiskDustContent | more massive than Solar System’s Kuiper Belt → |
| debrisDiskType | cold debris disk → |
| declination | −15° 56′ 15″ → |
| distanceFromEarth_ly | about 11.9 light-years → |
| distanceFromEarth_pc | about 3.65 parsecs → |
| effectiveTemperature_K | about 5340 → |
| FlamsteedDesignation | 52 Ceti → |
| habitableZoneCandidates |
Tau Ceti e
→
Tau Ceti f → |
| hasCandidateExoplanets | true → |
| hasCandidatePlanet |
Tau Ceti e
→
Tau Ceti f → |
| hasDebrisDisk | true → |
| isSETITarget | true → |
| luminosity_solar | about 0.52 → |
| mass_solar | about 0.78 → |
| metallicity_Fe_H | about −0.5 → |
| notableFor |
Sun-like properties
→
early target in the search for extraterrestrial intelligence → high long-term stability → proximity to the Solar System → |
| numberOfReportedPlanetCandidates | up to 5 → |
| parallax_mas | about 273 milliarcseconds → |
| planetarySystemStatus | candidates not yet universally confirmed → |
| planetDetectionMethod | radial velocity → |
| properMotionDec_mas_yr | +854 → |
| properMotionRA_mas_yr | +−1721 → |
| radialVelocity_km_s | about −16.6 → |
| radius_solar | about 0.79 → |
| rightAscension | 01h 44m 04s → |
| rotationPeriod_days | about 34 → |
| solarAnalogStatus | Sun-like star → |
| spectralType | G8.5V → |
| stellarClass | G-type main-sequence → |
| suspectedPlanetarySystem | true → |
| variability |
low stellar activity
→
photometrically stable → |
| visibleFrom | both hemispheres → |
| wasObservedBy |
Project Ozma
→
surface form: "Project Ozma II"
various SETI programs → |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form: "τ Ceti"