The Kepler-189 System
Kepler-189 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets, about 1,929 light-years from Earth.
Size Comparison: The Planets of Kepler-189
Kepler-189: Star and Habitable Zone
Kepler-189
- Surface temperature
- 5,235 K (Sun: 5,772 K)
- Radius
- 0.75 R☉
Habitable zone of Kepler-189: 0.477–1.142 AU (conservative: 0.604–1.083 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 Kepler-189 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-189 b | Terrestrial | 10 d | 1.21 R⊕ | 0.32 | 2014 |
| Kepler-189 c | Mini Neptune | 20 d | 2.38 R⊕ | 0.30 | 2014 |
Discovery History
The first planet found here, Kepler-189 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-189 b (Transit)
- 2014 — Kepler-189 c (Transit)
Frequently Asked Questions About Kepler-189
How many planets does Kepler-189 have?
Kepler-189 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-189 system habitable?
None of the known planets in Kepler-189 orbit within the star's habitable zone.
How far away is Kepler-189?
Kepler-189 is about 1,929 light-years from Earth in the constellation Lyra.
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