The Kepler-1129 System
Kepler-1129 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets, about 3,861 light-years from Earth.
Size Comparison: The Planets of Kepler-1129
Kepler-1129: Star and Habitable Zone
Kepler-1129
- Surface temperature
- 5,831 K (Sun: 5,772 K)
- Mass
- 1.00 M☉
- Radius
- 1.00 R☉
- Age
- 4.1 billion years (Sun: 4.6)
Habitable zone of Kepler-1129: 0.762–1.792 AU (conservative: 0.965–1.699 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-1129 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-1129 b | Mini Neptune | 24 d | 2.96 R⊕ | 0.25 | 2016 |
| Kepler-1129 c | Mini Neptune | 77 d | 2.73 R⊕ | 0.37 | 2016 |
Discovery History
The first planet found here, Kepler-1129 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-1129 b (Transit)
- 2016 — Kepler-1129 c (Transit)
Frequently Asked Questions About Kepler-1129
How many planets does Kepler-1129 have?
Kepler-1129 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-1129 system habitable?
None of the known planets in Kepler-1129 orbit within the star's habitable zone.
How far away is Kepler-1129?
Kepler-1129 is about 3,861 light-years from Earth in the constellation Lyra.
Explore the Kepler-1129 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
