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HD 171238 b
Orbiting HD 171238, discovered in 2009 (7514) by La Silla Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 2796.89 M⊕ |
| Orbital period | 1515.00 Earth days (~4.1 Earth years) |
| Orbital eccentricity | 0.358 |
| Equilibrium temperature | Unknown |
Host star — HD 171238
| Temperature | Unknown |
| Radius | Unknown |
| Mass | 0.92 M☉ |
Location
| Distance from Earth | 44.8 pc (~146 light-years) |
| Right ascension / Declination | 278.6818 / -28.0728 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.