← Back to Exoplanet Archive
Kepler-257 d
Orbiting Kepler-257, discovered in 2014 (7519) by Kepler via the Transit method.
Planet
| Radius | 4.95 R⊕ |
| Mass | Unknown |
| Orbital period | 24.66 Earth days (~0.1 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | Unknown |
Host star — Kepler-257
| Temperature | 5180 K (4907 °C) |
| Radius | 1.04 R☉ |
| Mass | Unknown |
Location
| Distance from Earth | 780.3 pc (~2545 light-years) |
| Right ascension / Declination | 297.3160 / 46.0233 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.