K2-105 b
A confirmed exoplanet orbiting K2-105.
Compared with Earth
- Size
- About 3.4 times Earth's width.
- Mass
- About 15 times Earth's mass.
- Temperature
- About 532 °C (989 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 100 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 8.3 Earth days.
Planet
- Radius
- 3.4 × Earth
- Mass
- 15.4 × Earth
- Density
- 2.24 g/cm³
- Equilibrium temperature
- 805 K
- Starlight received
- 100 × Earth
- Orbital period
- 8.267 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-105
- Spectral class
- G — sun-like
- Surface temperature
- 5,373 K
- Radius
- 0.905 × Sun
- Mass
- 0.94 × Sun
- Age
- Unknown
System
- Distance from Earth
- 645.8 light-years (198 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2017
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.