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HD 21520 b
Orbiting HD 21520, discovered in 2024 (7529) by Transiting Exoplanet Survey Satellite (TESS) via the Transit method.
Planet
| Radius | 2.70 R⊕ |
| Mass | 17.70 M⊕ |
| Orbital period | 25.13 Earth days (~0.1 Earth years) |
| Orbital eccentricity | 0.000 |
| Equilibrium temperature | 637 K (364 °C) |
Host star — HD 21520
| Temperature | 5871 K (5598 °C) |
| Radius | 1.04 R☉ |
| Mass | 1.09 M☉ |
Location
| Distance from Earth | 79.2 pc (~258 light-years) |
| Right ascension / Declination | 51.6403 / -43.6137 |
Last refreshed 2026-09-13 from NASA's Exoplanet Archive.