Exoplanet
HIP 19976 b
131.35 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 4.94 Earth radii
- Mass
- 21.6123 (+2.8605 / −5.0853) Earth masses
- Orbital period
- 50.6591 (+0.0628 / −0.0783) days
- Semi-major axis
- 0.234 (+9 × 10⁻³ / −0.01) AU
- Equilibrium temperature
- 378.1 (+20.94 / −20.94) 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