Exoplanet
TRAPPIST-1 f
40.54 light-years
- Discovery
- Transit · 2017
- Radius
- 1.045 (+0.013 / −0.012) Earth radii
- Mass
- 1.039 (+0.031 / −0.031) Earth masses
- Orbital period
- 9.2075 (+3.2 × 10⁻⁵ / −3.2 × 10⁻⁵) days
- Semi-major axis
- 0.0385 (+3.3 × 10⁻⁴ / −3.3 × 10⁻⁴) AU
- Equilibrium temperature
- 217.7 (+2.1 / −2.1) 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