TOI-159 b
A confirmed exoplanet orbiting TOI-159.
Compared with Earth
- Size
- About 18 times Earth's width.
- Mass
- About 1,110 times Earth's mass.
- Temperature
- About 1,618 °C (2,944 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.8 Earth days.
Planet
- Radius
- 18.18 × Earth
- Mass
- 1,110 × Earth
- Density
- 1.02 g/cm³
- Equilibrium temperature
- 1,891 K
- Starlight received
- Unknown
- Orbital period
- 3.763 days
- Average distance from its star
- 0.056 AU
Star
- Host star
- TOI-159
- Spectral class
- F — yellow-white
- Surface temperature
- 7,287 K
- Radius
- 1.62 × Sun
- Mass
- 1.661 × Sun
- Age
- 0.145 billion years
System
- Distance from Earth
- 1,134 light-years (347.6 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2026
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.