K2-128 b
A confirmed exoplanet orbiting K2-128.
Compared with Earth
- Size
- About 1.4 times Earth's width.
- Starlight
- About 69 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 5.7 Earth days.
Planet
- Radius
- 1.42 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- Unknown
- Starlight received
- 68.8 × Earth
- Orbital period
- 5.676 days
- Average distance from its star
- 0.056 AU
Star
- Host star
- K2-128
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,470 K
- Radius
- 0.7776 × Sun
- Mass
- 0.7112 × Sun
- Age
- Unknown
System
- Distance from Earth
- 373.9 light-years (114.6 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.