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K2-139 b
Orbiting K2-139, discovered in 2017 (7522) by K2 via the Transit method.
Planet
| Radius | 9.11 R⊕ |
| Mass | Unknown |
| Orbital period | 28.38 Earth days (~0.1 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | 524 K (251 °C) |
Host star — K2-139
| Temperature | 5370 K (5097 °C) |
| Radius | 0.88 R☉ |
| Mass | 0.96 M☉ |
Location
| Distance from Earth | 153.9 pc (~502 light-years) |
| Right ascension / Declination | 289.0667 / -17.9107 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.