The Kepler-357 System
Kepler-357 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 2,246 light-years from Earth.
Size Comparison: The Planets of Kepler-357
Kepler-357: Star and Habitable Zone
Kepler-357
- Surface temperature
- 5,036 K (Sun: 5,772 K)
- Radius
- 0.83 R☉
Habitable zone of Kepler-357: 0.495–1.196 AU (conservative: 0.627–1.134 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-357 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-357 b | Super Earth | 6.5 d | 1.84 R⊕ | 0.28 | 2014 |
| Kepler-357 c | Mini Neptune | 17 d | 2.67 R⊕ | 0.29 | 2014 |
| Kepler-357 d | Sub Neptune | 49 d | 3.43 R⊕ | 0.40 | 2014 |
Discovery History
The first planet found here, Kepler-357 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-357 b (Transit)
- 2014 — Kepler-357 c (Transit)
- 2014 — Kepler-357 d (Transit)
Frequently Asked Questions About Kepler-357
How many planets does Kepler-357 have?
Kepler-357 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-357 system habitable?
None of the known planets in Kepler-357 orbit within the star's habitable zone.
How far away is Kepler-357?
Kepler-357 is about 2,246 light-years from Earth in the constellation Cygnus.
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