Exoplanet
TOI-561 b
279.84 light-years
- Discovery
- Transit · 2020
- Radius
- 1.397 (+0.027 / −0.027) Earth radii
- Mass
- 2.02 (+0.23 / −0.23) Earth masses
- Orbital period
- 0.4466 (+3 × 10⁻⁷ / −3 × 10⁻⁷) days
- Semi-major axis
- 0.0106 (+1.6 × 10⁻⁴ / −1.6 × 10⁻⁴) AU
- Equilibrium temperature
- 2,319 (+34 / −34) K
- Mass provenance
- Mass
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