TOI-5573 b
A confirmed exoplanet orbiting TOI-5573.
Compared with Earth
- Size
- About 9.8 times Earth's width.
- Mass
- About 112 times Earth's mass.
- Temperature
- About 255 °C (491 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 13 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 8.8 Earth days.
Planet
- Radius
- 9.75 × Earth
- Mass
- 112 × Earth
- Density
- 0.661 g/cm³
- Equilibrium temperature
- 528 K
- Starlight received
- 12.92 × Earth
- Orbital period
- 8.798 days
- Average distance from its star
- 0.0712 AU
Star
- Host star
- TOI-5573
- Spectral class
- M — red dwarf
- Surface temperature
- 3,790 K
- Radius
- 0.594 × Sun
- Mass
- 0.619 × Sun
- Age
- 9.7 billion years
System
- Distance from Earth
- 608.5 light-years (186.6 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.