K2-166 b
A confirmed exoplanet orbiting K2-166.
Compared with Earth
- Size
- About 2.2 times Earth's width.
- Temperature
- About 867 °C (1,592 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 8.5 Earth days.
Planet
- Radius
- 2.19 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 1,140 K
- Starlight received
- Unknown
- Orbital period
- 8.527 days
- Average distance from its star
- 0.0858 AU
Star
- Host star
- K2-166
- Spectral class
- G — sun-like
- Surface temperature
- 5,960 K
- Radius
- 1.61 × Sun
- Mass
- 1.16 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,555 light-years (476.9 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.