Exoplanet
YZ Cet b
12.11 light-years
- Discovery
- Radial Velocity · 2017
- Radius
- 0.913 Earth radii
- Mass
- 0.7 (+0.09 / −0.08) Earth masses
- Orbital period
- 2.0209 (+7 × 10⁻⁵ / −9 × 10⁻⁵) days
- Semi-major axis
- 0.0163 (+3.5 × 10⁻⁴ / −4.1 × 10⁻⁴) AU
- Equilibrium temperature
- 471.2 (+2.2 / −2.1) 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