K2-157 b
A confirmed exoplanet orbiting K2-157.
Compared with Earth
- Size
- About 94% of Earth's width.
- Mass
- About 1.1 times Earth's mass.
- Temperature
- About 2,159 °C (3,918 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 6,660 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 8.8 hours.
Planet
- Radius
- 0.935 × Earth
- Mass
- 1.14 × Earth
- Density
- 7.7 g/cm³
- Equilibrium temperature
- 2,432 K
- Starlight received
- 6,660 × Earth
- Orbital period
- 0.3653 days
- Average distance from its star
- 0.00962 AU
Star
- Host star
- K2-157
- Spectral class
- G — sun-like
- Surface temperature
- 5,334 K
- Radius
- 0.86 × Sun
- Mass
- 0.89 × Sun
- Age
- 8.8 billion years
System
- Distance from Earth
- 973.2 light-years (298.4 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2018
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.