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TOI-257 b
Orbiting TOI-257, discovered in 2021 (7526) by Transiting Exoplanet Survey Satellite (TESS) via the Transit method.
Planet
| Radius | 7.16 R⊕ |
| Mass | 43.86 M⊕ |
| Orbital period | 18.39 Earth days (~0.1 Earth years) |
| Orbital eccentricity | 0.000 |
| Equilibrium temperature | 1027 K (754 °C) |
Host star — TOI-257
| Temperature | 6095 K (5822 °C) |
| Radius | 1.87 R☉ |
| Mass | 1.41 M☉ |
Location
| Distance from Earth | 76.9 pc (~251 light-years) |
| Right ascension / Declination | 47.5173 / -50.8323 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.