K2-25 b
A confirmed exoplanet orbiting K2-25.
Compared with Earth
- Size
- About 3.4 times Earth's width.
- Mass
- About 25 times Earth's mass.
- Temperature
- About 221 °C (430 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 9.9 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 3.5 Earth days.
Planet
- Radius
- 3.44 × Earth
- Mass
- 24.5 × Earth
- Density
- Unknown
- Equilibrium temperature
- 494 K
- Starlight received
- 9.91 × Earth
- Orbital period
- 3.485 days
- Average distance from its star
- 0.0287 AU
Star
- Host star
- K2-25
- Spectral class
- M — red dwarf
- Surface temperature
- 3,207 K
- Radius
- 0.2932 × Sun
- Mass
- 0.2634 × Sun
- Age
- 0.73 billion years
System
- Distance from Earth
- 146.6 light-years (44.96 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.