The Kepler-238 System
Kepler-238 is a planetary system in the constellation Lyra hosting 5 confirmed exoplanets, about 5,867 light-years from Earth.
Size Comparison: The Planets of Kepler-238
Kepler-238: Star and Habitable Zone
Kepler-238
- Surface temperature
- 5,751 K (Sun: 5,772 K)
- Radius
- 1.43 R☉
Habitable zone of Kepler-238: 1.065–2.511 AU (conservative: 1.349–2.380 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 5 Planets in the Kepler-238 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-238 b | Super Earth | 2.1 d | 1.73 R⊕ | 0.27 | 2014 |
| Kepler-238 c | Mini Neptune | 6.2 d | 2.39 R⊕ | 0.24 | 2014 |
| Kepler-238 d | Sub Neptune | 13 d | 3.07 R⊕ | 0.21 | 2014 |
| Kepler-238 e | Neptune-like | 24 d | 5.60 R⊕ | 0.15 | 2013 |
| Kepler-238 f | Super Earth | 50 d | 2.00 R⊕ | 0.29 | 2013 |
Discovery History
The first planet found here, Kepler-238 e, was discovered in 2013 using the transit method. The most recent addition, Kepler-238 d, followed in 2014.
- 2013 — Kepler-238 e (Transit)
- 2013 — Kepler-238 f (Transit)
- 2014 — Kepler-238 b (Transit)
- 2014 — Kepler-238 c (Transit)
- 2014 — Kepler-238 d (Transit)
Frequently Asked Questions About Kepler-238
How many planets does Kepler-238 have?
Kepler-238 has 5 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-238 system habitable?
None of the known planets in Kepler-238 orbit within the star's habitable zone.
How far away is Kepler-238?
Kepler-238 is about 5,867 light-years from Earth in the constellation Lyra.
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