Exoplanet
HD 153557 d
58.52 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 11.9 Earth radii
- Mass
- 8,725.6611 (+1,130.1978 / −1,111.1281) Earth masses
- Orbital period
- 4.0655 × 10⁴ (+3,874.1755 / −4,234.0273) days
- Semi-major axis
- 21.449 (+1.487 / −1.746) AU
- Equilibrium temperature
- 43.47 (+2.5 / −2.5) K
- Mass provenance
- Mass
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