TOI-558 b
A confirmed exoplanet orbiting TOI-558.
Compared with Earth
- Size
- About 12 times Earth's width.
- Mass
- About 1,147 times Earth's mass.
- Temperature
- About 788 °C (1,450 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 15 Earth days.
Planet
- Radius
- 12.17 × Earth
- Mass
- 1,147 × Earth
- Density
- 3.5 g/cm³
- Equilibrium temperature
- 1,061 K
- Starlight received
- Unknown
- Orbital period
- 14.57 days
- Average distance from its star
- 0.1291 AU
Star
- Host star
- TOI-558
- Spectral class
- F — yellow-white
- Surface temperature
- 6,466 K
- Radius
- 1.496 × Sun
- Mass
- 1.349 × Sun
- Age
- 1.79 billion years
System
- Distance from Earth
- 1,313 light-years (402.6 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.