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K2-257 b
Orbiting K2-257, discovered in 2018 (7523) by K2 via the Transit method.
Planet
| Radius | 0.83 R⊕ |
| Mass | Unknown |
| Orbital period | 1.61 Earth days (~0.0 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | 789 K (516 °C) |
Host star — K2-257
| Temperature | 3725 K (3452 °C) |
| Radius | 0.50 R☉ |
| Mass | 0.52 M☉ |
Location
| Distance from Earth | 64.0 pc (~209 light-years) |
| Right ascension / Declination | 188.2783 / -1.9533 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.