Exoplanet
YZ Cet d
12.11 light-years
- Discovery
- Radial Velocity · 2017
- Radius
- 1.03 Earth radii
- Mass
- 1.09 (+0.12 / −0.12) Earth masses
- Orbital period
- 4.6563 (+2.8 × 10⁻⁴ / −2.9 × 10⁻⁴) days
- Semi-major axis
- 0.0285 (+6.1 × 10⁻⁴ / −7.1 × 10⁻⁴) AU
- Equilibrium temperature
- 356.7 (+1.7 / −1.6) 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