Exoplanet

WASP-18 b

Orbiting WASP-18

Overview

WASP-18 b is an exoplanet orbiting the star WASP-18, discovered in 2009 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

13.90

Earth radii

015 R⊕

Mass

3241.85

Earth masses

0500 M⊕

Orbital Period

0.9

days

0.1d10,000d

Distance

123.5

parsecs

Nearby10,000 pc

Equilibrium Temp

2429

K

150 K3,500 K

Radius (Earth radii)

13.90

Mass (Earth masses)

3241.85

Measured

Equilibrium Temperature

2429 K

Orbital Period

0.94 days

Distance from Earth

123.5 pc (~403 ly)

Spectral Type

Unknown

Temperature

6432 K

Mass (Solar)

1.29 M☉

Radius (Solar)

1.32 R☉

Luminosity

0.43 log L☉

Planets in System

2

Stars in System

2

Coordinates (RA, Dec)

24.3545°, -45.6778°

Discovery Method

Transit

Discovery Year

2009

Data Sources
NASA Exoplanet Archive

Source ID: WASP-18 b

System Context

WASP-18 b orbits WASP-18 and was reported in 2009 and was detected with the Transit method.

Published measurements list a radius of 13.9 Earth radii, a mass of 3,241.85 Earth masses, an orbital period of 0.94 days, and an equilibrium temperature near 2,429 K.

Catalog data places the system at about 123.5 parsecs from Earth 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 WASP-18

More planets in this system

WASP-18 c