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XO-3 b
Orbiting XO-3, discovered in 2007 (7512) by XO via the Transit method.
Planet
| Radius | 14.80 R⊕ |
| Mass | 4217.58 M⊕ |
| Orbital period | 3.19 Earth days (~0.0 Earth years) |
| Orbital eccentricity | 0.279 |
| Equilibrium temperature | 1890 K (1617 °C) |
Host star — XO-3
| Temperature | 6970 K (6697 °C) |
| Radius | 1.52 R☉ |
| Mass | 1.45 M☉ |
Location
| Distance from Earth | 213.1 pc (~695 light-years) |
| Right ascension / Declination | 65.4696 / 57.8172 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.