The Kepler-338 System
Kepler-338 is a planetary system in the constellation Lyra hosting 4 confirmed exoplanets, about 1,803 light-years from Earth.
Size Comparison: The Planets of Kepler-338
Kepler-338: Star and Habitable Zone
Kepler-338
- Surface temperature
- 5,923 K (Sun: 5,772 K)
- Radius
- 1.74 R☉
Habitable zone of Kepler-338: 1.356–3.184 AU (conservative: 1.718–3.018 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-338 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-338 b | Mini Neptune | 14 d | 2.44 R⊕ | 0.24 | 2014 |
| Kepler-338 c | Mini Neptune | 24 d | 2.34 R⊕ | 0.25 | 2014 |
| Kepler-338 d | Mini Neptune | 44 d | 3.00 R⊕ | 0.23 | 2014 |
| Kepler-338 e | Super Earth | 9.3 d | 1.56 R⊕ | 0.28 | 2014 |
Discovery History
The first planet found here, Kepler-338 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-338 b (Transit)
- 2014 — Kepler-338 c (Transit)
- 2014 — Kepler-338 d (Transit)
- 2014 — Kepler-338 e (Transit Timing Variations)
Frequently Asked Questions About Kepler-338
How many planets does Kepler-338 have?
Kepler-338 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-338 system habitable?
None of the known planets in Kepler-338 orbit within the star's habitable zone.
How far away is Kepler-338?
Kepler-338 is about 1,803 light-years from Earth in the constellation Lyra.
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