Exoplanet

WASP-21 b

Orbiting WASP-21

Overview

WASP-21 b is an exoplanet orbiting the star WASP-21, discovered in 2010 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.99

Earth radii

015 R⊕

Mass

95.34

Earth masses

0500 M⊕

Orbital Period

4.3

days

0.1d10,000d

Distance

258.4

parsecs

Nearby10,000 pc

Radius (Earth radii)

11.99

Mass (Earth masses)

95.34

Measured

Equilibrium Temperature

Unknown

Orbital Period

4.32 days

Distance from Earth

258.4 pc (~843 ly)

Spectral Type

G3 V

Temperature

Unknown

Mass (Solar)

Unknown

Radius (Solar)

Unknown

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

347.4928°, 18.3962°

Discovery Method

Transit

Discovery Year

2010

Data Sources

Source ID: WASP-21 b

System Context

WASP-21 b orbits WASP-21 and was reported in 2010 and was detected with the Transit method.

Published measurements list a radius of 11.99 Earth radii, a mass of 95.35 Earth masses, and an orbital period of 4.32 days.

Catalog data places the system at about 258.4 parsecs from Earth, a host star classified as G3 V, 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-21