The Kepler-197 System
Kepler-197 is a planetary system in the constellation Cygnus hosting 4 confirmed exoplanets around 2 stars, about 1,078 light-years from Earth.
Size Comparison: The Planets of Kepler-197
Star Kepler-197 and Its Habitable Zone
Kepler-197
- Surface temperature
- 6,004 K (Sun: 5,772 K)
- Radius
- 1.12 R☉
Habitable zone of Kepler-197: 0.895–2.097 AU (conservative: 1.134–1.988 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-197 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-197 b | Terrestrial | 5.6 d | 1.02 R⊕ | 0.30 | 2014 |
| Kepler-197 c | Terrestrial | 10 d | 1.23 R⊕ | 0.30 | 2014 |
| Kepler-197 d | Terrestrial | 16 d | 1.22 R⊕ | 0.30 | 2014 |
| Kepler-197 e | Terrestrial | 25 d | 0.91 R⊕ | 0.31 | 2014 |
Discovery History
The first planet found here, Kepler-197 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-197 b (Transit)
- 2014 — Kepler-197 c (Transit)
- 2014 — Kepler-197 d (Transit)
- 2014 — Kepler-197 e (Transit)
Frequently Asked Questions About Kepler-197
How many planets does Kepler-197 have?
Kepler-197 has 4 confirmed exoplanets distributed around its 2 stars. More may await discovery.
Are any planets in the Kepler-197 system habitable?
None of the known planets in Kepler-197 orbit within the star's habitable zone.
How far away is Kepler-197?
Kepler-197 is about 1,078 light-years from Earth in the constellation Cygnus.
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