Exoplanet
BD+20 2457 b
5,021.86 light-years
- Discovery
- Radial Velocity · 2009
- Radius
- 12.1 Earth radii
- Mass
- 6,807.63 Earth masses
- Orbital period
- 379.63 (+2.01 / −2.01) days
- Semi-major axis
- 1.45 AU
- Equilibrium temperature
- 1,159.67 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