Exoplanet

K2-38 c

Orbiting K2-38

Overview

K2-38 c is an exoplanet orbiting the star K2-38, discovered in 2016 using the Transit method. It is a Super-Earth world.

Key Measurements

Radius

2.29

Earth radii

015 R⊕

Mass

8.30

Earth masses

0500 M⊕

Orbital Period

10.6

days

0.1d10,000d

Distance

192.7

parsecs

Nearby10,000 pc

Equilibrium Temp

916

K

150 K3,500 K

Radius (Earth radii)

2.29

Mass (Earth masses)

8.30

Measured

Equilibrium Temperature

916 K

Parameter source: Toledo-Padrón et al. 2020

Orbital Period

10.561+0.001−0.001days

Semi-Major Axis

0.0951+0.0009−0.0009au

Planet Mass (Earth masses)

8.30+1.30−1.30

Planet Mass (Jupiter masses)

0.0261+0.0041−0.0041

Eccentricity

0.1610+0.0960−0.0780

Argument of Periastron

153.0+54.0−33.0deg

Radial Velocity Semi-Amplitude

2.41+0.39−0.37m/s

Distance from Earth

192.7 pc (~628 ly)

Spectral Type

G2 V

Temperature

5731 K

Mass (Solar)

1.03 M☉

Radius (Solar)

1.06 R☉

Luminosity

0.04 log L☉

Planets in System

2

Stars in System

1

Coordinates (RA, Dec)

240.0333°, -23.1894°

Discovery Method

Transit

Discovery Year

2016

Data Sources
NASA Exoplanet Archive

Source ID: K2-38 c

System Context

K2-38 c orbits K2-38 and was reported in 2016 and was detected with the Transit method.

Published measurements list a radius of 2.29 Earth radii, a mass of 8.3 Earth masses, an orbital period of 10.56 days, and an equilibrium temperature near 916 K.

Catalog data places the system at about 192.7 parsecs from Earth, a host star classified as G2 V, and 2 known planets in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open K2-38

More planets in this system

K2-38 b