K2-8 b
A confirmed exoplanet orbiting K2-8.
Compared with Earth
- Size
- About 3.6 times Earth's width.
- Temperature
- About 358 °C (676 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 38 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 10 Earth days.
Planet
- Radius
- 3.58 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 631 K
- Starlight received
- 37.7 × Earth
- Orbital period
- 10.35 days
- Average distance from its star
- 0.0856 AU
Star
- Host star
- K2-8
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,870 K
- Radius
- 0.74 × Sun
- Mass
- 0.78 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,316 light-years (403.5 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2015
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.