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HD 81688 b
Orbiting HD 81688, discovered in 2007 (7512) by Okayama Astrophysical Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 525.69 M⊕ |
| Orbital period | 183.93 Earth days (~0.5 Earth years) |
| Orbital eccentricity | 0.040 |
| Equilibrium temperature | Unknown |
Host star — HD 81688
| Temperature | 4797 K (4524 °C) |
| Radius | 11.13 R☉ |
| Mass | 1.07 M☉ |
Location
| Distance from Earth | 85.7 pc (~280 light-years) |
| Right ascension / Declination | 142.1666 / 45.6009 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.