BD+20 2457
BD+20 2457 is a K2 II star 5,022 light years away with 2 known planets. They were all found in 2009.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| BD+20 2457 b | 379.6 days | 1.45 AU | at least 6,808 | 2009 | Radial Velocity | |
| BD+20 2457 c | 622 days | 2.01 AU | at least 3,963 | 2009 | Radial Velocity |
"At least" is a minimum mass. Radial velocity can only measure mass times the sine of the orbit's tilt.
Star
- Spectral type K2 II
- 4,137 K surface temperature
- 2.8 times the mass of the Sun
- 49 times the radius of the Sun
Data from the NASA Exoplanet Archive, as of October 3, 2026. In the 3D view sizes and distances are compressed and every orbit is drawn in the same plane. Where each planet sits along its orbit is made up.