K2-389 b
A confirmed exoplanet orbiting K2-389.
Compared with Earth
- Size
- About 2.3 times Earth's width.
- Temperature
- About 659 °C (1,218 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 179 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 8.6 Earth days.
Planet
- Radius
- 2.33 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 932 K
- Starlight received
- 179 × Earth
- Orbital period
- 8.583 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-389
- Spectral class
- G — sun-like
- Surface temperature
- 5,773 K
- Radius
- 1.094 × Sun
- Mass
- 0.99 × Sun
- Age
- Unknown
System
- Distance from Earth
- 845.4 light-years (259.2 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.