TOI-640 b
A confirmed exoplanet orbiting TOI-640.
Compared with Earth
- Size
- About 19 times Earth's width.
- Mass
- About 181 times Earth's mass.
- Temperature
- About 1,543 °C (2,809 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 5 Earth days.
Planet
- Radius
- 19.28 × Earth
- Mass
- 181.2 × Earth
- Density
- 0.138 g/cm³
- Equilibrium temperature
- 1,816 K
- Starlight received
- Unknown
- Orbital period
- 5.004 days
- Average distance from its star
- Unknown
Star
- Host star
- TOI-640
- Spectral class
- F — yellow-white
- Surface temperature
- 6,460 K
- Radius
- 2.082 × Sun
- Mass
- 1.536 × Sun
- Age
- 1.99 billion years
System
- Distance from Earth
- 1,115 light-years (342 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.