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BD+20 2457 b
Orbiting BD+20 2457, discovered in 2009 (7514) by McDonald Observatory via the Radial Velocity method.
Planet
| Radius | Unknown |
| Mass | 6807.63 M⊕ |
| Orbital period | 379.63 Earth days (~1.0 Earth years) |
| Orbital eccentricity | 0.150 |
| Equilibrium temperature | Unknown |
Host star — BD+20 2457
| Temperature | 4137 K (3864 °C) |
| Radius | 49.00 R☉ |
| Mass | 2.80 M☉ |
Location
| Distance from Earth | 1539.7 pc (~5022 light-years) |
| Right ascension / Declination | 154.1868 / 19.8913 |
Last refreshed 2026-09-14 from NASA's Exoplanet Archive.