The Kepler-340 System
Kepler-340 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,638 light-years from Earth.
Size Comparison: The Planets of Kepler-340
Kepler-340: Star and Habitable Zone
Kepler-340
- Surface temperature
- 6,620 K (Sun: 5,772 K)
- Radius
- 1.85 R☉
Habitable zone of Kepler-340: 1.733–4.016 AU (conservative: 2.195–3.807 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-340 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-340 b | Mini Neptune | 15 d | 2.53 R⊕ | 0.23 | 2014 |
| Kepler-340 c | Sub Neptune | 23 d | 3.37 R⊕ | 0.20 | 2014 |
Discovery History
The first planet found here, Kepler-340 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-340 b (Transit)
- 2014 — Kepler-340 c (Transit)
Frequently Asked Questions About Kepler-340
How many planets does Kepler-340 have?
Kepler-340 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-340 system habitable?
None of the known planets in Kepler-340 orbit within the star's habitable zone.
How far away is Kepler-340?
Kepler-340 is about 2,638 light-years from Earth in the constellation Cygnus.
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