TOI-199 b
A confirmed exoplanet orbiting TOI-199.
Compared with Earth
- Size
- About 9.1 times Earth's width.
- Mass
- About 54 times Earth's mass.
- Year
- A year here lasts about 105 Earth days.
Planet
- Radius
- 9.079 × Earth
- Mass
- 54.03 × Earth
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 104.9 days
- Average distance from its star
- 0.4254 AU
Star
- Host star
- TOI-199
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,255 K
- Radius
- 0.82 × Sun
- Mass
- 0.936 × Sun
- Age
- 0.8 billion years
System
- Distance from Earth
- 333.6 light-years (102.3 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2023
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.