Exoplanet

WASP-81 b

Orbiting WASP-81

Overview

WASP-81 b is an exoplanet orbiting the star WASP-81, discovered in 2017 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

16.02

Earth radii

015 R⊕

Mass

231.70

Earth masses

0500 M⊕

Orbital Period

2.7

days

0.1d10,000d

Distance

398.5

parsecs

Nearby10,000 pc

Equilibrium Temp

1623

K

150 K3,500 K

Radius (Earth radii)

16.02

Mass (Earth masses)

231.70

Measured

Equilibrium Temperature

1623 K

Orbital Period

2.72 days

Distance from Earth

398.5 pc (~1300 ly)

Spectral Type

Unknown

Temperature

5870 K

Mass (Solar)

1.08 M☉

Radius (Solar)

1.28 R☉

Luminosity

0.25 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

304.2080°, 3.2939°

Discovery Method

Transit

Discovery Year

2017

Data Sources
NASA Exoplanet Archive

Source ID: WASP-81 b

System Context

WASP-81 b orbits WASP-81 and was reported in 2017 and was detected with the Transit method.

Published measurements list a radius of 16.02 Earth radii, a mass of 231.7 Earth masses, an orbital period of 2.72 days, and an equilibrium temperature near 1,623 K.

Catalog data places the system at about 398.5 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-81