The K2-189 System
K2-189 is a planetary system in the constellation Virgo hosting 2 confirmed exoplanets, about 790 light-years from Earth.
Size Comparison: The Planets of K2-189
K2-189: Star and Habitable Zone
K2-189
- Surface temperature
- 5,442 K (Sun: 5,772 K)
- Mass
- 0.85 M☉
- Radius
- 0.88 R☉
Habitable zone of K2-189: 0.597–1.420 AU (conservative: 0.756–1.346 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 K2-189 System
Discovery History
The first planet found here, K2-189 b, was discovered in 2018 using the transit method.
Frequently Asked Questions About K2-189
How many planets does K2-189 have?
K2-189 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-189 system habitable?
None of the known planets in K2-189 orbit within the star's habitable zone.
How far away is K2-189?
K2-189 is about 790 light-years from Earth in the constellation Virgo.
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