The Kepler-226 System
Kepler-226 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 3,197 light-years from Earth.
Size Comparison: The Planets of Kepler-226
Kepler-226: Star and Habitable Zone
Kepler-226
- Surface temperature
- 5,571 K (Sun: 5,772 K)
- Radius
- 0.80 R☉
Habitable zone of Kepler-226: 0.566–1.342 AU (conservative: 0.717–1.273 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 3 Planets in the Kepler-226 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-226 b | Super Earth | 3.9 d | 1.55 R⊕ | 0.28 | 2014 |
| Kepler-226 c | Mini Neptune | 5.3 d | 2.27 R⊕ | 0.25 | 2014 |
| Kepler-226 d | Terrestrial | 8.1 d | 1.22 R⊕ | 0.30 | 2014 |
Discovery History
The first planet found here, Kepler-226 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-226 b (Transit)
- 2014 — Kepler-226 c (Transit)
- 2014 — Kepler-226 d (Transit)
Frequently Asked Questions About Kepler-226
How many planets does Kepler-226 have?
Kepler-226 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-226 system habitable?
None of the known planets in Kepler-226 orbit within the star's habitable zone.
How far away is Kepler-226?
Kepler-226 is about 3,197 light-years from Earth in the constellation Cygnus.
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