Exoplanet
BD+20 2457 b
Orbiting BD+20 2457
Overview
BD+20 2457 b is an exoplanet orbiting the star BD+20 2457, discovered in 2009 using the Radial Velocity method.
Key Measurements
Orbital Period
379.6
days
0.1d10,000d
Distance
1539.7
parsecs
Nearby10,000 pc
Radius (Earth radii)
Unknown
Mass (Earth masses)
Unknown
Equilibrium Temperature
Unknown
Orbital Period
379.63 days
Distance from Earth
1539.7 pc (~5022 ly)
Spectral Type
K2 II
Temperature
4137 K
Mass (Solar)
2.80 M☉
Radius (Solar)
49.00 R☉
Luminosity
3.17 log L☉
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
154.1868°, 19.8913°
Discovery Method
Radial Velocity
Discovery Year
2009
Data Sources
Source ID: BD+20 2457 b