TOI-251 b
A confirmed exoplanet orbiting TOI-251.
Compared with Earth
- Size
- About 2.7 times Earth's width.
- Mass
- About 318 times Earth's mass.
- Year
- A year here lasts about 4.9 Earth days.
Planet
- Radius
- 2.74 × Earth
- Mass
- 317.8 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 4.938 days
- Average distance from its star
- 0.05741 AU
Star
- Host star
- TOI-251
- Spectral class
- G — sun-like
- Surface temperature
- 5,875 K
- Radius
- 0.881 × Sun
- Mass
- 1.036 × Sun
- Age
- 0.18 billion years
System
- Distance from Earth
- 324.6 light-years (99.52 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.