The Kepler-208 System
Kepler-208 is a planetary system in the constellation Cygnus hosting 4 confirmed exoplanets, about 2,529 light-years from Earth.
Size Comparison: The Planets of Kepler-208
Kepler-208: Star and Habitable Zone
Kepler-208
- Surface temperature
- 6,092 K (Sun: 5,772 K)
- Radius
- 1.31 R☉
Habitable zone of Kepler-208: 1.075–2.515 AU (conservative: 1.362–2.384 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 4 Planets in the Kepler-208 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-208 b | Super Earth | 4.2 d | 1.63 R⊕ | 0.27 | 2014 |
| Kepler-208 c | Super Earth | 7.5 d | 1.39 R⊕ | 0.29 | 2014 |
| Kepler-208 d | Terrestrial | 11 d | 1.20 R⊕ | 0.30 | 2014 |
| Kepler-208 e | Super Earth | 16 d | 1.48 R⊕ | 0.29 | 2014 |
Discovery History
The first planet found here, Kepler-208 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-208 b (Transit)
- 2014 — Kepler-208 c (Transit)
- 2014 — Kepler-208 d (Transit)
- 2014 — Kepler-208 e (Transit)
Frequently Asked Questions About Kepler-208
How many planets does Kepler-208 have?
Kepler-208 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-208 system habitable?
None of the known planets in Kepler-208 orbit within the star's habitable zone.
How far away is Kepler-208?
Kepler-208 is about 2,529 light-years from Earth in the constellation Cygnus.
Explore the Kepler-208 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.
