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HR 8799 d
Orbiting HR 8799, discovered in 2008 (7513) by W. M. Keck Observatory via the Imaging method.
Planet
| Radius | 13.00 R⊕ |
| Mass | 3000.00 M⊕ |
| Orbital period | 37000.00 Earth days (~101.3 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | Unknown |
Host star — HR 8799
| Temperature | Unknown |
| Radius | Unknown |
| Mass | 1.50 M☉ |
Location
| Distance from Earth | 41.2 pc (~135 light-years) |
| Right ascension / Declination | 346.8701 / 21.1340 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.