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WASP-121 b
Orbiting WASP-121, discovered in 2016 (7521) by SuperWASP via the Transit method.
Planet
| Radius | 19.53 R⊕ |
| Mass | 371.86 M⊕ |
| Orbital period | 1.27 Earth days (~0.0 Earth years) |
| Orbital eccentricity | Unknown |
| Equilibrium temperature | 2409 K (2136 °C) |
Host star — WASP-121
| Temperature | 6628 K (6355 °C) |
| Radius | 1.46 R☉ |
| Mass | 1.33 M☉ |
Location
| Distance from Earth | 269.9 pc (~880 light-years) |
| Right ascension / Declination | 107.6002 / -39.0973 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.