The Kepler-117 System
Kepler-117 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 4,747 light-years from Earth.
Size Comparison: The Planets of Kepler-117
Kepler-117: Star and Habitable Zone
Kepler-117
- Spectral type
- F8 V
- Surface temperature
- 6,150 K (Sun: 5,772 K)
- Mass
- 1.13 M☉
- Radius
- 1.61 R☉
- Age
- 5.3 billion years (Sun: 4.6)
Habitable zone of Kepler-117: 1.335–3.118 AU (conservative: 1.691–2.956 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-117 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-117 b | Cold Gas Giant | 19 d | 8.06 R⊕ | 0.11 | 2014 |
| Kepler-117 c | Cold Gas Giant | 51 d | 12.34 R⊕ | 0.10 | 2014 |
Discovery History
The first planet found here, Kepler-117 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-117 b (Transit)
- 2014 — Kepler-117 c (Transit)
Frequently Asked Questions About Kepler-117
How many planets does Kepler-117 have?
Kepler-117 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-117 system habitable?
None of the known planets in Kepler-117 orbit within the star's habitable zone.
How far away is Kepler-117?
Kepler-117 is about 4,747 light-years from Earth in the constellation Cygnus.
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