K2-254 b
A confirmed exoplanet orbiting K2-254.
Compared with Earth
- Size
- About 1.6 times Earth's width.
- Temperature
- About 518 °C (964 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 4.1 Earth days.
Planet
- Radius
- 1.63 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 791 K
- Starlight received
- Unknown
- Orbital period
- 4.096 days
- Average distance from its star
- 0.0448 AU
Star
- Host star
- K2-254
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,629 K
- Radius
- 0.67 × Sun
- Mass
- 0.71 × Sun
- Age
- Unknown
System
- Distance from Earth
- 742.9 light-years (227.8 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.