TOI-1899 b
A confirmed exoplanet orbiting TOI-1899.
Compared with Earth
- Size
- About 11 times Earth's width.
- Mass
- About 213 times Earth's mass.
- Temperature
- About 105 °C (221 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 3.4 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 29 Earth days.
Planet
- Radius
- 11.1 × Earth
- Mass
- 212.9 × Earth
- Density
- 0.85 g/cm³
- Equilibrium temperature
- 378 K
- Starlight received
- 3.4 × Earth
- Orbital period
- 29.09 days
- Average distance from its star
- 0.1525 AU
Star
- Host star
- TOI-1899
- Spectral class
- K — orange dwarf
- Surface temperature
- 3,926 K
- Radius
- 0.607 × Sun
- Mass
- 0.632 × Sun
- Age
- 7.1 billion years
System
- Distance from Earth
- 418.9 light-years (128.4 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2020
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.