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GJ 436 b
Orbiting GJ 436, discovered in 2004 (7509) by W. M. Keck Observatory via the Radial Velocity method.
Planet
| Radius | 4.17 R⊕ |
| Mass | 22.10 M⊕ |
| Orbital period | 2.64 Earth days (~0.0 Earth years) |
| Orbital eccentricity | 0.138 |
| Equilibrium temperature | Unknown |
Host star — GJ 436
| Temperature | Unknown |
| Radius | 0.46 R☉ |
| Mass | 0.47 M☉ |
Location
| Distance from Earth | 9.8 pc (~32 light-years) |
| Right ascension / Declination | 175.5505 / 26.7031 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.