Exoplanet

WASP-188 b

Orbiting WASP-188

Overview

WASP-188 b is an exoplanet orbiting the star WASP-188, discovered in 2025 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

14.82

Earth radii

015 R⊕

Mass

458.63

Earth masses

0500 M⊕

Orbital Period

5.7

days

0.1d10,000d

Distance

675.3

parsecs

Nearby10,000 pc

Equilibrium Temp

1666

K

150 K3,500 K

Radius (Earth radii)

14.82

Mass (Earth masses)

458.63

Measured

Equilibrium Temperature

1666 K

Parameter source: Schanche et al. 2025

Orbital Period

5.749+0.000−0.000days

Semi-Major Axis

0.0720+0.0030−0.0030au

Planet Mass (Earth masses)

458.63+94.08−94.71

Planet Mass (Jupiter masses)

1.4430+0.2960−0.2980

Eccentricity

0.0000

Radial Velocity Semi-Amplitude

124.63+5.82−6.49m/s

Distance from Earth

675.3 pc (~2202 ly)

Spectral Type

Unknown

Temperature

6850 K

Mass (Solar)

1.50 M☉

Radius (Solar)

1.83 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

278.7820°, 36.6156°

Discovery Method

Transit

Discovery Year

2025

Data Sources
NASA Exoplanet Archive

Source ID: WASP-188 b

System Context

WASP-188 b orbits WASP-188 and was reported in 2025 and was detected with the Transit method.

Published measurements list a radius of 14.82 Earth radii, a mass of 458.63 Earth masses, an orbital period of 5.75 days, and an equilibrium temperature near 1,666 K.

Catalog data places the system at about 675.3 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-188
WASP-188 b