Exoplanet CatalogExoplanet 81 Cet b
Radius13.10 R⊕Earth = 1
Mass1,051.1 M⊕Earth = 1
Orbital period1,005.57 d
Equilibrium temp.527 K≈ 254 °C
Distance330.3 ly
Discovered2008Radial Velocity
Size compared (radius, Earth = 1)
1.00
3.88
11.21
13.10
Where it sits among all planets (percentile)
84%
90%
94%
29%
25%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of 81 Cet (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| 81 Cet b | 1,005.57 | 13.10 | 1,051.1 | 527 | 2008 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| 81 Cet | G5 III | 4,734 | 11.21 | 1.23 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.