K2-121 b
Orbiting K2-121
K2-121 b is an exoplanet orbiting the star K2-121, discovered in 2017 using the Transit method. It is a Neptune-sized world.
Radius
7.16
Earth radii
Mass
51.00
Earth masses
Orbital Period
5.2
days
Distance
169.4
parsecs
Equilibrium Temp
716
K
Radius (Earth radii)
7.16
Mass (Earth masses)
51.00
Measured
Equilibrium Temperature
716 K
Orbital Period
5.19 days
Distance from Earth
169.4 pc (~553 ly)
Spectral Type
Unknown
Temperature
4526 K
Mass (Solar)
0.71 M☉
Radius (Solar)
0.68 R☉
Luminosity
Unknown
Planets in System
1
Stars in System
1
Coordinates (RA, Dec)
126.9367°, 17.5793°
Discovery Method
Transit
Discovery Year
2017
Source ID: K2-121 b
K2-121 b orbits K2-121 and was reported in 2017 and was detected with the Transit method.
Published measurements list a radius of 7.16 Earth radii, a mass of 51 Earth masses, an orbital period of 5.19 days, and an equilibrium temperature near 716 K.
Catalog data places the system at about 169.4 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 K2-121