Exoplanet
tau Cet g
11.75 light-years
The archive flags this planet’s confirmation as questioned in the literature.
- Discovery
- Radial Velocity · 2017
- Radius
- 1.18 Earth radii
- Mass
- 1.75 (+0.25 / −0.4) Earth masses
- Orbital period
- 20 (+0.02 / −0.01) days
- Semi-major axis
- 0.133 (+1 × 10⁻³ / −2 × 10⁻³) AU
- Equilibrium temperature
- 639.65 (+8.75 / −8.75) 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