Exoplanet
tau Cet f
11.75 light-years
The archive flags this planet’s confirmation as questioned in the literature.
- Discovery
- Radial Velocity · 2017
- Radius
- 1.81 Earth radii
- Mass
- 3.93 (+1.05 / −1.37) Earth masses
- Orbital period
- 636.13 (+11.7 / −47.69) days
- Semi-major axis
- 1.334 (+0.017 / −0.044) AU
- Equilibrium temperature
- 201.97 (+3.42 / −3.42) K
- Mass provenance
- Msini
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00