The Kepler-390 System
Kepler-390 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets around 2 stars, about 1,420 light-years from Earth.
Size Comparison: The Planets of Kepler-390
Star Kepler-390 and Its Habitable Zone
Kepler-390
- Surface temperature
- 5,166 K (Sun: 5,772 K)
- Radius
- 0.78 R☉
Habitable zone of Kepler-390: 0.482–1.158 AU (conservative: 0.610–1.098 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-390 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-390 b | Terrestrial | 6.7 d | 0.82 R⊕ | 0.30 | 2014 |
| Kepler-390 c | Terrestrial | 13 d | 0.79 R⊕ | 0.32 | 2014 |
Discovery History
The first planet found here, Kepler-390 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-390 b (Transit)
- 2014 — Kepler-390 c (Transit)
Frequently Asked Questions About Kepler-390
How many planets does Kepler-390 have?
Kepler-390 has 2 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the Kepler-390 system habitable?
None of the known planets in Kepler-390 orbit within the star's habitable zone.
How far away is Kepler-390?
Kepler-390 is about 1,420 light-years from Earth in the constellation Lyra.
Explore the Kepler-390 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
