Exoplanet CatalogExoplanet TOI-521 b
Radius1.98 R⊕Earth = 1
Mass5.3 M⊕Earth = 1
Orbital period1.54 d
Equilibrium temp.794 K≈ 521 °C
Distance198.8 ly
Discovered2025Transit
Size compared (radius, Earth = 1)
1.00
1.98
3.88
11.21
Where it sits among all planets (percentile)
28%
30%
5%
53%
18%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of TOI-521 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| TOI-521 b | 1.54 | 1.98 | 5.3 | 794 | 2025 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| TOI-521 | M3 | 3,544 | 0.42 | 0.42 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.