Exoplanet

WASP-138 b

Orbiting WASP-138

Overview

WASP-138 b is an exoplanet orbiting the star WASP-138, discovered in 2016 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

12.22

Earth radii

015 R⊕

Mass

387.75

Earth masses

0500 M⊕

Orbital Period

3.6

days

0.1d10,000d

Distance

414.2

parsecs

Nearby10,000 pc

Equilibrium Temp

1590

K

150 K3,500 K

Radius (Earth radii)

12.22

Mass (Earth masses)

387.75

Measured

Equilibrium Temperature

1590 K

Orbital Period

3.63 days

Distance from Earth

414.2 pc (~1351 ly)

Spectral Type

Unknown

Temperature

6272 K

Mass (Solar)

1.22 M☉

Radius (Solar)

1.36 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

41.6392°, -0.4641°

Discovery Method

Transit

Discovery Year

2016

Data Sources
NASA Exoplanet Archive

Source ID: WASP-138 b

System Context

WASP-138 b orbits WASP-138 and was reported in 2016 and was detected with the Transit method.

Published measurements list a radius of 12.22 Earth radii, a mass of 387.75 Earth masses, an orbital period of 3.63 days, and an equilibrium temperature near 1,590 K.

Catalog data places the system at about 414.2 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 WASP-138