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HD 180617 b
Orbiting HD 180617, discovered in 2018 (7523) by Calar Alto Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 12.21 M⊕ |
| Orbital period | 105.91 Earth days (~0.3 Earth years) |
| Orbital eccentricity | 0.101 |
| Equilibrium temperature | Unknown |
Host star — HD 180617
| Temperature | 3534 K (3261 °C) |
| Radius | 0.48 R☉ |
| Mass | 0.48 M☉ |
Location
| Distance from Earth | 5.9 pc (~19 light-years) |
| Right ascension / Declination | 289.2277 / 5.1632 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.