The Kepler-306 System
Kepler-306 is a planetary system in the constellation Lyra hosting 4 confirmed exoplanets, about 2,530 light-years from Earth.
Size Comparison: The Planets of Kepler-306
Kepler-306: Star and Habitable Zone
Kepler-306
- Surface temperature
- 4,954 K (Sun: 5,772 K)
- Radius
- 0.72 R☉
Habitable zone of Kepler-306: 0.415–1.005 AU (conservative: 0.526–0.953 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-306 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-306 b | Super Earth | 4.6 d | 1.52 R⊕ | 0.29 | 2014 |
| Kepler-306 c | Mini Neptune | 7.2 d | 2.35 R⊕ | 0.25 | 2014 |
| Kepler-306 d | Mini Neptune | 17 d | 2.47 R⊕ | 0.28 | 2014 |
| Kepler-306 e | Mini Neptune | 45 d | 2.27 R⊕ | 0.41 | 2014 |
Discovery History
The first planet found here, Kepler-306 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-306 b (Transit)
- 2014 — Kepler-306 c (Transit)
- 2014 — Kepler-306 d (Transit)
- 2014 — Kepler-306 e (Transit)
Frequently Asked Questions About Kepler-306
How many planets does Kepler-306 have?
Kepler-306 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-306 system habitable?
None of the known planets in Kepler-306 orbit within the star's habitable zone.
How far away is Kepler-306?
Kepler-306 is about 2,530 light-years from Earth in the constellation Lyra.
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