TOI-5398 b
A confirmed exoplanet orbiting TOI-5398.
Compared with Earth
- Size
- About 10 times Earth's width.
- Mass
- About 59 times Earth's mass.
- Temperature
- About 674 °C (1,245 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 11 Earth days.
Planet
- Radius
- 10.3 × Earth
- Mass
- 58.7 × Earth
- Density
- 0.29 g/cm³
- Equilibrium temperature
- 947 K
- Starlight received
- Unknown
- Orbital period
- 10.59 days
- Average distance from its star
- 0.098 AU
Star
- Host star
- TOI-5398
- Spectral class
- F — yellow-white
- Surface temperature
- 6,000 K
- Radius
- 1.051 × Sun
- Mass
- 1.146 × Sun
- Age
- 0.65 billion years
System
- Distance from Earth
- 426.8 light-years (130.9 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.