Exoplanet CatalogExoplanet BD+20 2457 b
Radius12.10 R⊕Earth = 1
Mass6,807.6 M⊕Earth = 1
Orbital period379.63 d
Equilibrium temp.1,160 K≈ 887 °C
Distance5,021.9 ly
Discovered2009Radial Velocity
Size compared (radius, Earth = 1)
1.00
3.88
11.21
12.10
Where it sits among all planets (percentile)
76%
99%
89%
78%
93%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of BD+20 2457 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| BD+20 2457 b | 379.63 | 12.10 | 6,807.6 | 1,160 | 2009 |
| BD+20 2457 c | 621.99 | 12.40 | 3,963.2 | 985 | 2009 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| BD+20 2457 | K2 II | 4,137 | 49.00 | 2.80 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.