The Kepler-436 System
Kepler-436 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 1,921 light-years from Earth.
Size Comparison: The Planets of Kepler-436
Kepler-436: Star and Habitable Zone
Kepler-436
- Surface temperature
- 4,685 K (Sun: 5,772 K)
- Mass
- 0.75 M☉
- Radius
- 0.71 R☉
- Age
- 4.1 billion years (Sun: 4.6)
Habitable zone of Kepler-436: 0.371–0.908 AU (conservative: 0.470–0.861 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-436 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-436 b | Mini Neptune | 64 d | 2.73 R⊕ | 0.62 | 2015 |
| Kepler-436 c | Mini Neptune | 17 d | 2.33 R⊕ | 0.33 | 2016 |
Discovery History
The first planet found here, Kepler-436 b, was discovered in 2015 using the transit method. The most recent addition, Kepler-436 c, followed in 2016.
- 2015 — Kepler-436 b (Transit)
- 2016 — Kepler-436 c (Transit)
Frequently Asked Questions About Kepler-436
How many planets does Kepler-436 have?
Kepler-436 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-436 system habitable?
None of the known planets in Kepler-436 orbit within the star's habitable zone.
How far away is Kepler-436?
Kepler-436 is about 1,921 light-years from Earth in the constellation Cygnus.
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