Exoplanet
HD 210277 b
69.47 light-years
- Discovery
- Radial Velocity · 1998
- Radius
- 13.6 Earth radii
- Mass
- 410.0007 (+15.8915 / −15.8915) Earth masses
- Orbital period
- 442.19 (+0.5 / −0.5) days
- Semi-major axis
- 1.13 (+0.02 / −0.02) AU
- Equilibrium temperature
- 259.86 (+2.68 / −2.68) 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