Exoplanet
HD 153557 b
58.52 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 4.77 Earth radii
- Mass
- 20.341 (+1.907 / −2.2248) Earth masses
- Orbital period
- 7.299 (+3.3 × 10⁻⁴ / −3.1 × 10⁻⁴) days
- Semi-major axis
- 0.068 (+3 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 772.12 (+37.68 / −37.68) 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