K2-157 c
Orbiting K2-157
K2-157 c is an exoplanet orbiting the star K2-157, discovered in 2025 using the Radial Velocity method.
Minimum Mass (M sin i)
30.80
Earth masses
Orbital Period
25.9
days
Distance
298.4
parsecs
Equilibrium Temp
587
K
Radius (Earth radii)
Unknown
Minimum Mass, M sin(i) (Earth masses)
30.80
Radial-velocity minimum
Equilibrium Temperature
587 K
Parameter source: Castro-González et al. 2025
Orbital Period
25.942+0.045−0.044days
Semi-Major Axis
0.1650+0.0018−0.0018au
M sin(i) (Earth masses)
30.80+1.90−1.90
M sin(i) (Jupiter masses)
0.0967+0.0060−0.0060
Eccentricity
<0.2
Radial Velocity Semi-Amplitude
7.17+0.42−0.42m/s
Distance from Earth
298.4 pc (~973 ly)
Spectral Type
G9 V
Temperature
5334 K
Mass (Solar)
0.89 M☉
Radius (Solar)
0.86 R☉
Luminosity
Unknown
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
183.7515°, -5.7820°
Discovery Method
Radial Velocity
Discovery Year
2025
Source ID: K2-157 c
K2-157 c orbits K2-157 and was reported in 2025 and was detected with the Radial Velocity method.
Published measurements list a minimum mass of 30.8 Earth masses (M sin i), an orbital period of 25.94 days, and an equilibrium temperature near 587 K.
Catalog data places the system at about 298.4 parsecs from Earth, a host star classified as G9 V, and 3 known planets in the system.
Host star
Explore the stellar record for this system to compare temperature, spectral type, and known planets.
Open K2-157