The K2-117 System
K2-117 is a planetary system in the constellation Cancer hosting 2 confirmed exoplanets, about 332 light-years from Earth.
Size Comparison: The Planets of K2-117
K2-117: Star and Habitable Zone
K2-117
- Surface temperature
- 3,778 K (Sun: 5,772 K)
- Mass
- 0.54 M☉
- Radius
- 0.51 R☉
Habitable zone of K2-117: 0.178–0.455 AU (conservative: 0.225–0.431 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 K2-117 System
Discovery History
The first planet found here, K2-117 b, was discovered in 2017 using the transit method.
Frequently Asked Questions About K2-117
How many planets does K2-117 have?
K2-117 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-117 system habitable?
None of the known planets in K2-117 orbit within the star's habitable zone.
How far away is K2-117?
K2-117 is about 332 light-years from Earth in the constellation Cancer.
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