Exoplanet
Kepler-21 b
Orbiting Kepler-21
Overview
Kepler-21 b is an exoplanet orbiting the star Kepler-21, discovered in 2012 using the Transit method. It is a Super-Earth world.
Key Measurements
Radius
1.64
Earth radii
015 R⊕
Mass
7.50
Earth masses
0500 M⊕
Orbital Period
2.8
days
0.1d10,000d
Distance
108.5
parsecs
Nearby10,000 pc
Equilibrium Temp
2015
K
150 K3,500 K
Radius (Earth radii)
1.64
Mass (Earth masses)
7.50
Measured
Equilibrium Temperature
2015 K
Orbital Period
2.79 days
Distance from Earth
108.5 pc (~354 ly)
Spectral Type
Unknown
Temperature
6305 K
Mass (Solar)
1.41 M☉
Radius (Solar)
1.90 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
2
Coordinates (RA, Dec)
287.3620°, 38.7141°
Discovery Method
Transit
Discovery Year
2012
Data Sources
Source ID: Kepler-21 b