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HD 178911 B b
Orbiting HD 178911 B, discovered in 2001 (7506) by W. M. Keck Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 2552.17 M⊕ |
| Orbital period | 71.48 Earth days (~0.2 Earth years) |
| Orbital eccentricity | 0.110 |
| Equilibrium temperature | Unknown |
Host star — HD 178911 B
| Temperature | 5588 K (5315 °C) |
| Radius | 1.08 R☉ |
| Mass | 1.24 M☉ |
Location
| Distance from Earth | 41.0 pc (~134 light-years) |
| Right ascension / Declination | 287.2632 / 34.6007 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.