The Kepler-254 System
Kepler-254 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets, about 4,532 light-years from Earth.
Size Comparison: The Planets of Kepler-254
Kepler-254: Star and Habitable Zone
Kepler-254
- Surface temperature
- 5,957 K (Sun: 5,772 K)
- Radius
- 0.91 R☉
Habitable zone of Kepler-254: 0.718–1.684 AU (conservative: 0.910–1.597 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-254 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-254 b | Sub Neptune | 5.8 d | 3.87 R⊕ | 0.19 | 2014 |
| Kepler-254 c | Mini Neptune | 12 d | 2.15 R⊕ | 0.27 | 2014 |
| Kepler-254 d | Mini Neptune | 19 d | 2.50 R⊕ | 0.26 | 2014 |
Discovery History
The first planet found here, Kepler-254 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-254 b (Transit)
- 2014 — Kepler-254 c (Transit)
- 2014 — Kepler-254 d (Transit)
Frequently Asked Questions About Kepler-254
How many planets does Kepler-254 have?
Kepler-254 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-254 system habitable?
None of the known planets in Kepler-254 orbit within the star's habitable zone.
How far away is Kepler-254?
Kepler-254 is about 4,532 light-years from Earth in the constellation Lyra.
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