TOI-669 b
A confirmed exoplanet orbiting TOI-669.
Compared with Earth
- Size
- About 2.6 times Earth's width.
- Mass
- About 10 times Earth's mass.
- Temperature
- About 852 °C (1,565 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.9 Earth days.
Planet
- Radius
- 2.586 × Earth
- Mass
- 10 × Earth
- Density
- 3.17 g/cm³
- Equilibrium temperature
- 1,125 K
- Starlight received
- Unknown
- Orbital period
- 3.945 days
- Average distance from its star
- 0.048 AU
Star
- Host star
- TOI-669
- Spectral class
- G — sun-like
- Surface temperature
- 5,597 K
- Radius
- 0.9882 × Sun
- Mass
- 0.9245 × Sun
- Age
- 7.9 billion years
System
- Distance from Earth
- 466 light-years (142.9 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2023
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.