Exoplanet

WASP-55 b

Orbiting WASP-55

Overview

WASP-55 b is an exoplanet orbiting the star WASP-55, discovered in 2012 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

14.73

Earth radii

015 R⊕

Mass

186.25

Earth masses

0500 M⊕

Orbital Period

4.5

days

0.1d10,000d

Distance

297.5

parsecs

Nearby10,000 pc

Equilibrium Temp

1342

K

150 K3,500 K

Radius (Earth radii)

14.73

Mass (Earth masses)

186.25

Measured

Equilibrium Temperature

1342 K

Parameter source: McGruder et al. 2023

Orbital Period

4.466+0.000−0.000days

Planet Mass (Earth masses)

186.25+10.49−10.17

Planet Mass (Jupiter masses)

0.5860+0.0330−0.0320

Radial Velocity Semi-Amplitude

68.70+3.20−3.20m/s

Distance from Earth

297.5 pc (~970 ly)

Spectral Type

Unknown

Temperature

6096 K

Mass (Solar)

1.07 M☉

Radius (Solar)

1.09 R☉

Luminosity

Unknown

Planets in System

1

Stars in System

2

Coordinates (RA, Dec)

203.7582°, -17.5035°

Discovery Method

Transit

Discovery Year

2012

Data Sources
NASA Exoplanet Archive

Source ID: WASP-55 b

System Context

WASP-55 b orbits WASP-55 and was reported in 2012 and was detected with the Transit method.

Published measurements list a radius of 14.73 Earth radii, a mass of 186.25 Earth masses, an orbital period of 4.47 days, and an equilibrium temperature near 1,342 K.

Catalog data places the system at about 297.5 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-55