K2-233 b
Orbiting K2-233
K2-233 b is an exoplanet orbiting the star K2-233, discovered in 2018 using the Transit method. It is a Earth-sized world.
Radius
1.31
Earth radii
Mass
2.40
Earth masses
Orbital Period
2.5
days
Distance
67.5
parsecs
Equilibrium Temp
1127
K
Radius (Earth radii)
1.31
Mass (Earth masses)
2.40
Measured
Equilibrium Temperature
1127 K
Parameter source: Barragán et al. 2023
Orbital Period
2.468+0.000−0.000days
Semi-Major Axis
0.0329+0.0007−0.0007au
Planet Mass (Earth masses)
2.40+1.50−1.30
Planet Mass (Jupiter masses)
0.0076+0.0047−0.0041
Eccentricity
0.0000
Epoch of Periastron
2457991.69+0.00−0.00days(BJD-TDB)
Argument of Periastron
90.0deg
Radial Velocity Semi-Amplitude
1.31+0.81−0.74m/s
Distance from Earth
67.5 pc (~220 ly)
Spectral Type
K3
Temperature
4796 K
Mass (Solar)
0.79 M☉
Radius (Solar)
0.71 R☉
Luminosity
Unknown
Planets in System
3
Stars in System
1
Coordinates (RA, Dec)
230.4799°, -20.2318°
Discovery Method
Transit
Discovery Year
2018
Source ID: K2-233 b
K2-233 b orbits K2-233 and was reported in 2018 and was detected with the Transit method.
Published measurements list a radius of 1.32 Earth radii, a mass of 2.4 Earth masses, an orbital period of 2.47 days, and an equilibrium temperature near 1,127 K.
Catalog data places the system at about 67.5 parsecs from Earth, a host star classified as K3, 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 K2-233