Exoplanet

TOI-558 b

Orbiting TOI-558

Overview

TOI-558 b is an exoplanet orbiting the star TOI-558, discovered in 2021 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

12.17

Earth radii

015 R⊕

Mass

1147.36

Earth masses

0500 M⊕

Orbital Period

14.6

days

0.1d10,000d

Distance

402.6

parsecs

Nearby10,000 pc

Equilibrium Temp

1061

K

150 K3,500 K

Radius (Earth radii)

12.17

Mass (Earth masses)

1147.36

Measured

Equilibrium Temperature

1061 K

Parameter source: Ikwut-Ukwa et al. 2022

Orbital Period

14.574+0.000−0.000days

Semi-Major Axis

0.1291+0.0020−0.0021au

Planet Mass (Earth masses)

1147.36+47.67−47.67

Planet Mass (Jupiter masses)

3.6100+0.1500−0.1500

Eccentricity

0.2980+0.0220−0.0200

Argument of Periastron

132.3+3.6−3.8deg

Radial Velocity Semi-Amplitude

257.10+6.50−6.50m/s

Distance from Earth

402.6 pc (~1313 ly)

Spectral Type

F V

Temperature

6466 K

Mass (Solar)

1.35 M☉

Radius (Solar)

1.50 R☉

Luminosity

0.55 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

42.2915°, -58.0247°

Discovery Method

Transit

Discovery Year

2021

Data Sources
NASA Exoplanet Archive

Source ID: TOI-558 b

System Context

TOI-558 b orbits TOI-558 and was reported in 2021 and was detected with the Transit method.

Published measurements list a radius of 12.17 Earth radii, a mass of 1,147.36 Earth masses, an orbital period of 14.57 days, and an equilibrium temperature near 1,061 K.

Catalog data places the system at about 402.6 parsecs from Earth, a host star classified as F 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 TOI-558