The Kepler-54 System
Kepler-54 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 886 light-years from Earth.
Size Comparison: The Planets of Kepler-54
Kepler-54: Star and Habitable Zone
Kepler-54
- Surface temperature
- 3,705 K (Sun: 5,772 K)
- Mass
- 0.51 M☉
- Radius
- 0.50 R☉
Habitable zone of Kepler-54: 0.168–0.431 AU (conservative: 0.212–0.408 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-54 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-54 b | Mini Neptune | 8.0 d | 2.10 R⊕ | 0.34 | 2012 |
| Kepler-54 c | Terrestrial | 12 d | 1.23 R⊕ | 0.45 | 2012 |
| Kepler-54 d | Super Earth | 21 d | 1.53 R⊕ | 0.60 | 2014 |
Discovery History
The first planet found here, Kepler-54 b, was discovered in 2012 using the transit method. The most recent addition, Kepler-54 d, followed in 2014.
- 2012 — Kepler-54 b (Transit)
- 2012 — Kepler-54 c (Transit)
- 2014 — Kepler-54 d (Transit)
Frequently Asked Questions About Kepler-54
How many planets does Kepler-54 have?
Kepler-54 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-54 system habitable?
None of the known planets in Kepler-54 orbit within the star's habitable zone.
How far away is Kepler-54?
Kepler-54 is about 886 light-years from Earth in the constellation Cygnus.
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