Exoplanet

K2-186 b

Orbiting K2-186

Overview

K2-186 b is an exoplanet orbiting the star K2-186, discovered in 2018 using the Transit method. It is a Mini-Neptune world.

Key Measurements

Radius

3.17

Earth radii

015 R⊕

Mass (est.)

10.85

Earth masses

0500 M⊕

Orbital Period

41.5

days

0.1d10,000d

Distance

330.7

parsecs

Nearby10,000 pc

Radius (Earth radii)

3.17

Mass (Earth masses)

10.85

Estimated

Equilibrium Temperature

Unknown

Parameter source: Mayo et al. 2018

Orbital Period

41.474+0.003−0.004days

Distance from Earth

330.7 pc (~1079 ly)

Spectral Type

Unknown

Temperature

5784 K

Mass (Solar)

1.02 M☉

Radius (Solar)

0.98 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

135.3350°, 18.8253°

Discovery Method

Transit

Discovery Year

2018

Data Sources
NASA Exoplanet Archive

Source ID: K2-186 b

System Context

K2-186 b orbits K2-186 and was reported in 2018 and was detected with the Transit method.

Published measurements list a radius of 3.17 Earth radii, a mass of 10.85 Earth masses (estimated), and an orbital period of 41.47 days.

Catalog data places the system at about 330.7 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 K2-186