The Kepler-300 System
2 planets
Cygnus
Kepler-300 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 3,583 light-years from Earth.
Size Comparison: The Planets of Kepler-300
Kepler-300: Star and Habitable Zone
Kepler-300
- Surface temperature
- 5,986 K (Sun: 5,772 K)
- Radius
- 0.90 R☉
Too hot
Optimistic habitable zone
Conservative habitable zone
Too cold
Habitable zone of Kepler-300: 0.716–1.678 AU (conservative: 0.907–1.591 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 2 Planets in the Kepler-300 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-300 b | Super Earth | 10 d | 1.67 R⊕ | 0.28 | 2014 |
| Kepler-300 c | Mini Neptune | 41 d | 2.25 R⊕ | 0.27 | 2014 |
Discovery History
The first planet found here, Kepler-300 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-300 b (Transit)
- 2014 — Kepler-300 c (Transit)
Frequently Asked Questions About Kepler-300
How many planets does Kepler-300 have?
Kepler-300 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-300 system habitable?
None of the known planets in Kepler-300 orbit within the star's habitable zone.
How far away is Kepler-300?
Kepler-300 is about 3,583 light-years from Earth in the constellation Cygnus.