Exoplanet
Kepler-9 b
Orbiting Kepler-9
Overview
Kepler-9 b is an exoplanet orbiting the star Kepler-9, discovered in 2010 using the Transit method. It is a Neptune-sized world.
Key Measurements
Radius
8.29
Earth radii
015 R⊕
Mass
43.40
Earth masses
0500 M⊕
Orbital Period
19.2
days
0.1d10,000d
Distance
628.3
parsecs
Nearby10,000 pc
Radius (Earth radii)
8.29
Mass (Earth masses)
43.40
Measured
Equilibrium Temperature
Unknown
Orbital Period
19.24 days
Distance from Earth
628.3 pc (~2049 ly)
Spectral Type
Unknown
Temperature
5774 K
Mass (Solar)
1.02 M☉
Radius (Solar)
0.96 R☉
Luminosity
-0.04 log L☉
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
285.5740°, 38.4008°
Discovery Method
Transit
Discovery Year
2010
Data Sources
Source ID: Kepler-9 b