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PSR B1257+12 d
Orbiting PSR B1257+12, discovered in 1992 (7497) by Arecibo Observatory via the Pulsar Timing method.
Planet
| Radius | Unknown |
| Mass | 3.90 M⊕ |
| Orbital period | 98.21 Earth days (~0.3 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | Unknown |
Host star — PSR B1257+12
| Temperature | Unknown |
| Radius | Unknown |
| Mass | 1.40 M☉ |
Location
| Distance from Earth | 600.0 pc (~1957 light-years) |
| Right ascension / Declination | 195.0149 / 12.6824 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.