Exoplanet
HIP 29442 c
222.41 light-years
- Discovery
- Radial Velocity · 2023
- Radius
- 1.551 (+0.045 / −0.045) Earth radii
- Mass
- 4.5 (+0.32 / −0.32) Earth masses
- Orbital period
- 3.538 (+8.2 × 10⁻⁶ / −8.2 × 10⁻⁶) days
- Semi-major axis
- 0.0452 (+8.2 × 10⁻⁴ / −8.2 × 10⁻⁴) AU
- Equilibrium temperature
- 1,123 (+19 / −19) 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