The Kepler-220 System
Kepler-220 is a planetary system in the constellation Cygnus hosting 4 confirmed exoplanets, about 558 light-years from Earth.
Size Comparison: The Planets of Kepler-220
Kepler-220: Star and Habitable Zone
Kepler-220
- Surface temperature
- 4,632 K (Sun: 5,772 K)
- Radius
- 0.67 R☉
Habitable zone of Kepler-220: 0.341–0.836 AU (conservative: 0.431–0.793 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-220 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-220 b | Terrestrial | 4.2 d | 0.81 R⊕ | 0.30 | 2014 |
| Kepler-220 c | Super Earth | 9.0 d | 1.57 R⊕ | 0.31 | 2014 |
| Kepler-220 d | Terrestrial | 28 d | 0.98 R⊕ | 0.45 | 2014 |
| Kepler-220 e | Super Earth | 46 d | 1.33 R⊕ | 0.56 | 2014 |
Discovery History
The first planet found here, Kepler-220 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-220 b (Transit)
- 2014 — Kepler-220 c (Transit)
- 2014 — Kepler-220 d (Transit)
- 2014 — Kepler-220 e (Transit)
Frequently Asked Questions About Kepler-220
How many planets does Kepler-220 have?
Kepler-220 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-220 system habitable?
None of the known planets in Kepler-220 orbit within the star's habitable zone.
How far away is Kepler-220?
Kepler-220 is about 558 light-years from Earth in the constellation Cygnus.
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