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XO-4 b
Orbiting XO-4, discovered in 2010 (7515) by Lowell Observatory via the Transit method.
Planet
| Radius | 14.01 R⊕ |
| Mass | 451.32 M⊕ |
| Orbital period | 4.13 Earth days (~0.0 Earth years) |
| Orbital eccentricity | 0.000 |
| Equilibrium temperature | Unknown |
Host star — XO-4
| Temperature | 6397 K (6124 °C) |
| Radius | 1.45 R☉ |
| Mass | 1.10 M☉ |
Location
| Distance from Earth | 272.7 pc (~889 light-years) |
| Right ascension / Declination | 110.3880 / 58.2681 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.