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Exoplanet
K2-18 b
Orbiting K2-18
Overview
K2-18 b is an exoplanet orbiting the star K2-18, discovered in 2015 using the Transit method. It is a Super-Earth world.
Key Measurements
Radius
2.37
Earth radii
015 R⊕
Mass
8.92
Earth masses
0500 M⊕
Orbital Period
32.9
days
0.1d10,000d
Distance
38.0
parsecs
Nearby10,000 pc
Equilibrium Temp
284
K
150 K3,500 K
Radius (Earth radii)
2.37
Mass (Earth masses)
8.92
Measured
Equilibrium Temperature
284 K
Orbital Period
32.94 days
Distance from Earth
38.0 pc (~124 ly)
Spectral Type
Unknown
Temperature
3457 K
Mass (Solar)
0.36 M☉
Radius (Solar)
0.41 R☉
Luminosity
Unknown
Planets in System
2
Stars in System
1
Coordinates (RA, Dec)
172.5601°, 7.5878°
Discovery Method
Transit
Discovery Year
2015
Data Sources
Source ID: K2-18 b