Exoplanet

WASP-89 b

Orbiting WASP-89

Overview

WASP-89 b is an exoplanet orbiting the star WASP-89, discovered in 2015 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

11.66

Earth radii

015 R⊕

Mass

1875.20

Earth masses

0500 M⊕

Orbital Period

3.4

days

0.1d10,000d

Distance

290.9

parsecs

Nearby10,000 pc

Equilibrium Temp

1120

K

150 K3,500 K

Radius (Earth radii)

11.66

Mass (Earth masses)

1875.20

Measured

Equilibrium Temperature

1120 K

Parameter source: Hellier et al. 2015

Orbital Period

3.356+0.000−0.000days

Semi-Major Axis

0.0427+0.0012−0.0012au

Planet Mass (Earth masses)

1875.20+127.13−127.13

Planet Mass (Jupiter masses)

5.9000+0.4000−0.4000

Eccentricity

0.1930+0.0090−0.0090

Argument of Periastron

28.0+4.0−4.0deg

Radial Velocity Semi-Amplitude

848.00+13.00−13.00m/s

Distance from Earth

290.9 pc (~949 ly)

Spectral Type

K3

Temperature

5130 K

Mass (Solar)

0.92 M☉

Radius (Solar)

0.88 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

313.9000°, -18.9714°

Discovery Method

Transit

Discovery Year

2015

Data Sources
NASA Exoplanet Archive

Source ID: WASP-89 b

System Context

WASP-89 b orbits WASP-89 and was reported in 2015 and was detected with the Transit method.

Published measurements list a radius of 11.66 Earth radii, a mass of 1,875.2 Earth masses, an orbital period of 3.36 days, and an equilibrium temperature near 1,120 K.

Catalog data places the system at about 290.9 parsecs from Earth, a host star classified as K3, 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-89
WASP-89 b