K2-257 b
Orbiting K2-257
K2-257 b is an exoplanet orbiting the star K2-257, discovered in 2018 using the Transit method. It is a Earth-sized world.
Radius
0.83
Earth radii
Mass (est.)
0.50
Earth masses
Orbital Period
1.6
days
Distance
64.0
parsecs
Equilibrium Temp
789
K
Radius (Earth radii)
0.83
Mass (Earth masses)
0.50
Estimated
Equilibrium Temperature
789 K
Orbital Period
1.61 days
Distance from Earth
64.0 pc (~209 ly)
Spectral Type
Unknown
Temperature
3725 K
Mass (Solar)
0.52 M☉
Radius (Solar)
0.50 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
188.2783°, -1.9533°
Discovery Method
Transit
Discovery Year
2018
Source ID: K2-257 b
K2-257 b orbits K2-257 and was reported in 2018 and was detected with the Transit method.
Published measurements list a radius of 0.83 Earth radii, a mass of 0.5 Earth masses (estimated), an orbital period of 1.61 days, and an equilibrium temperature near 789 K.
Catalog data places the system at about 64 parsecs from Earth and 1 known planet in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open K2-257