Exoplanet

K2-125 b

Orbiting K2-125

Overview

K2-125 b is an exoplanet orbiting the star K2-125, discovered in 2017 using the Transit method. It is a Super-Earth world.

Key Measurements

Radius

2.18

Earth radii

015 R⊕

Mass (est.)

5.74

Earth masses

0500 M⊕

Orbital Period

21.8

days

0.1d10,000d

Distance

124.2

parsecs

Nearby10,000 pc

Radius (Earth radii)

2.18

Mass (Earth masses)

5.74

Estimated

Equilibrium Temperature

Unknown

Parameter source: Dressing et al. 2017

Orbital Period

21.750+0.0020.002days

Semi-Major Axis

0.1210+0.00400.0050au

Eccentricity

0.0800+0.16100.0669

Argument of Periastron

-3.7+128.6127.5deg

Distance from Earth

124.2 pc (~405 ly)

Spectral Type

Unknown

Temperature

3654 K

Mass (Solar)

0.49 M☉

Radius (Solar)

0.40 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

204.1419°, -14.9478°

Discovery Method

Transit

Discovery Year

2017

Data Sources

Source ID: K2-125 b

System Context

K2-125 b orbits K2-125 and was reported in 2017 and was detected with the Transit method.

Published measurements list a radius of 2.18 Earth radii, a mass of 5.74 Earth masses (estimated), and an orbital period of 21.75 days.

Catalog data places the system at about 124.2 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 K2-125