Exoplanet

WASP-166 b

Orbiting WASP-166

Overview

WASP-166 b is an exoplanet orbiting the star WASP-166, discovered in 2019 using the Transit method. It is a Neptune-sized world.

Key Measurements

Radius

7.06

Earth radii

015 R⊕

Mass

32.10

Earth masses

0500 M⊕

Orbital Period

5.4

days

0.1d10,000d

Distance

114.2

parsecs

Nearby10,000 pc

Equilibrium Temp

1270

K

150 K3,500 K

Radius (Earth radii)

7.06

Mass (Earth masses)

32.10

Measured

Equilibrium Temperature

1270 K

Parameter source: Hellier et al. 2019

Orbital Period

5.444+0.000−0.000days

Semi-Major Axis

0.0641+0.0011−0.0011au

Planet Mass (Earth masses)

32.10+1.59−1.59

Planet Mass (Jupiter masses)

0.1010+0.0050−0.0050

Eccentricity

0.0000

Radial Velocity Semi-Amplitude

10.40+0.40−0.40m/s

Distance from Earth

114.2 pc (~372 ly)

Spectral Type

F9 V

Temperature

6050 K

Mass (Solar)

1.19 M☉

Radius (Solar)

1.22 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

144.8751°, -20.9824°

Discovery Method

Transit

Discovery Year

2019

Data Sources
NASA Exoplanet Archive

Source ID: WASP-166 b

System Context

WASP-166 b orbits WASP-166 and was reported in 2019 and was detected with the Transit method.

Published measurements list a radius of 7.06 Earth radii, a mass of 32.1 Earth masses, an orbital period of 5.44 days, and an equilibrium temperature near 1,270 K.

Catalog data places the system at about 114.2 parsecs from Earth, a host star classified as F9 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-166