Exoplanet CatalogExoplanet XO-1 b
Radius12.78 R⊕Earth = 1
Mass263.8 M⊕Earth = 1
Orbital period3.94 d
Equilibrium temp.1,210 K≈ 937 °C
Distance533.4 ly
Discovered2006Transit
Size compared (radius, Earth = 1)
1.00
3.88
11.21
12.78
Where it sits among all planets (percentile)
82%
78%
22%
80%
34%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of XO-1 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| XO-1 b | 3.94 | 12.78 | 263.8 | 1,210 | 2006 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| XO-1 | G1 V | 5,750 | 0.88 | 0.88 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.