The K2-389 System
K2-389 is a planetary system in the constellation Aquarius hosting 2 confirmed exoplanets, about 845 light-years from Earth.
Size Comparison: The Planets of K2-389
K2-389: Star and Habitable Zone
K2-389
- Surface temperature
- 5,773 K (Sun: 5,772 K)
- Mass
- 0.99 M☉
- Radius
- 1.09 R☉
Habitable zone of K2-389: 0.820–1.932 AU (conservative: 1.038–1.831 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the K2-389 System
Discovery History
The first planet found here, K2-389 b, was discovered in 2022 using the transit method.
Frequently Asked Questions About K2-389
How many planets does K2-389 have?
K2-389 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-389 system habitable?
None of the known planets in K2-389 orbit within the star's habitable zone.
How far away is K2-389?
K2-389 is about 845 light-years from Earth in the constellation Aquarius.
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