Exoplanet
PSR B1257+12 c
1,956.94 light-years
- Discovery
- Pulsar Timing · 1992
- Radius
- 1.91 Earth radii
- Mass
- 4.3 (+0.2 / −0.2) Earth masses
- Orbital period
- 66.5419 (+1 × 10⁻⁴ / −1 × 10⁻⁴) days
- Semi-major axis
- 0.36 AU
- Equilibrium temperature
- Unknown
- 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