Exoplanet
HD 219828 b
238.47 light-years
- Discovery
- Radial Velocity · 2007
- Radius
- 4.59 Earth radii
- Mass
- 19.0697 (+1.5891 / −1.5891) Earth masses
- Orbital period
- 3.8348 (+7 × 10⁻⁵ / −7 × 10⁻⁵) days
- Semi-major axis
- 0.049 (+2 × 10⁻³ / −2 × 10⁻³) AU
- Equilibrium temperature
- 1,602.83 (+38.94 / −38.94) 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