K2-38 b
A confirmed exoplanet orbiting K2-38.
Compared with Earth
- Size
- About 1.5 times Earth's width.
- Mass
- About 7.3 times Earth's mass.
- Temperature
- About 993 °C (1,819 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 426 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4 Earth days.
Planet
- Radius
- 1.54 × Earth
- Mass
- 7.3 × Earth
- Density
- 11 g/cm³
- Equilibrium temperature
- 1,266 K
- Starlight received
- 426 × Earth
- Orbital period
- 4.016 days
- Average distance from its star
- 0.04994 AU
Star
- Host star
- K2-38
- Spectral class
- G — sun-like
- Surface temperature
- 5,731 K
- Radius
- 1.06 × Sun
- Mass
- 1.03 × Sun
- Age
- 6.7 billion years
System
- Distance from Earth
- 628.5 light-years (192.7 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.