K2-15 b
A confirmed exoplanet orbiting K2-15.
Compared with Earth
- Size
- About 2.5 times Earth's width.
- Temperature
- About 403 °C (757 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 12 Earth days.
Planet
- Radius
- 2.48 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 676 K
- Starlight received
- Unknown
- Orbital period
- 11.81 days
- Average distance from its star
- 0.091 AU
Star
- Host star
- K2-15
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,131 K
- Radius
- 0.68 × Sun
- Mass
- 0.72 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,611 light-years (494 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2015
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.