The Kepler-389 System
Kepler-389 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,663 light-years from Earth.
Size Comparison: The Planets of Kepler-389
Kepler-389: Star and Habitable Zone
Kepler-389
- Surface temperature
- 5,376 K (Sun: 5,772 K)
- Radius
- 0.79 R☉
Habitable zone of Kepler-389: 0.527–1.256 AU (conservative: 0.667–1.191 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-389 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-389 b | Super Earth | 3.2 d | 1.51 R⊕ | 0.29 | 2014 |
| Kepler-389 c | Super Earth | 15 d | 1.46 R⊕ | 0.33 | 2014 |
Discovery History
The first planet found here, Kepler-389 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-389 b (Transit)
- 2014 — Kepler-389 c (Transit)
Frequently Asked Questions About Kepler-389
How many planets does Kepler-389 have?
Kepler-389 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-389 system habitable?
None of the known planets in Kepler-389 orbit within the star's habitable zone.
How far away is Kepler-389?
Kepler-389 is about 2,663 light-years from Earth in the constellation Cygnus.
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