K2-199 b
A confirmed exoplanet orbiting K2-199.
Compared with Earth
- Size
- About 1.7 times Earth's width.
- Mass
- About 6.9 times Earth's mass.
- Temperature
- About 640 °C (1,184 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 116 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 3.2 Earth days.
Planet
- Radius
- 1.73 × Earth
- Mass
- 6.9 × Earth
- Density
- 7.2 g/cm³
- Equilibrium temperature
- 913 K
- Starlight received
- 116.2 × Earth
- Orbital period
- 3.225 days
- Average distance from its star
- 0.0382 AU
Star
- Host star
- K2-199
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,491 K
- Radius
- 0.682 × Sun
- Mass
- 0.711 × Sun
- Age
- 5.04 billion years
System
- Distance from Earth
- 350.7 light-years (107.5 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2018
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.