K2-43 b
A confirmed exoplanet orbiting K2-43.
Compared with Earth
- Size
- About 4.5 times Earth's width.
- Temperature
- About 666 °C (1,231 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.5 Earth days.
Planet
- Radius
- 4.51 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 939.3 K
- Starlight received
- Unknown
- Orbital period
- 3.471 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-43
- Spectral class
- M — red dwarf
- Surface temperature
- 3,841 K
- Radius
- 0.542 × Sun
- Mass
- 0.571 × Sun
- Age
- Unknown
System
- Distance from Earth
- 595.4 light-years (182.5 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.