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Kepler-1257 b
Orbiting Kepler-1257, discovered in 2016 (7521) by Kepler via the Transit method.
Planet
| Radius | 1.52 R⊕ |
| Mass | Unknown |
| Orbital period | 2.67 Earth days (~0.0 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | Unknown |
Host star — Kepler-1257
| Temperature | 5502 K (5229 °C) |
| Radius | 0.87 R☉ |
| Mass | 0.90 M☉ |
Location
| Distance from Earth | 1106.0 pc (~3607 light-years) |
| Right ascension / Declination | 296.0756 / 45.6270 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.