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TOI-1221 b
Orbiting TOI-1221, discovered in 2023 (7528) by Transiting Exoplanet Survey Satellite (TESS) via the Transit method.
Planet
| Radius | 2.91 R⊕ |
| Mass | 1112.40 M⊕ |
| Orbital period | 91.68 Earth days (~0.3 Earth years) |
| Orbital eccentricity | 0.210 |
| Equilibrium temperature | 440 K (167 °C) |
Host star — TOI-1221
| Temperature | 5592 K (5319 °C) |
| Radius | 1.03 R☉ |
| Mass | 0.93 M☉ |
Location
| Distance from Earth | 138.4 pc (~451 light-years) |
| Right ascension / Declination | 107.9210 / -65.5089 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.