Exoplanet
K2-258 b
Orbiting K2-258
Overview
K2-258 b is an exoplanet orbiting the star K2-258, discovered in 2018 using the Transit method. It is a Mini-Neptune world.
Key Measurements
Radius
3.00
Earth radii
015 R⊕
Mass (est.)
9.87
Earth masses
0500 M⊕
Orbital Period
19.1
days
0.1d10,000d
Distance
661.9
parsecs
Nearby10,000 pc
Equilibrium Temp
831
K
150 K3,500 K
Radius (Earth radii)
3.00
Mass (Earth masses)
9.87
Estimated
Equilibrium Temperature
831 K
Orbital Period
19.09 days
Distance from Earth
661.9 pc (~2159 ly)
Spectral Type
Unknown
Temperature
6351 K
Mass (Solar)
1.21 M☉
Radius (Solar)
1.31 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
187.6314°, -1.1609°
Discovery Method
Transit
Discovery Year
2018
Data Sources
Source ID: K2-258 b