The Kepler-128 System
Kepler-128 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets, about 1,293 light-years from Earth.
Size Comparison: The Planets of Kepler-128
Kepler-128: Star and Habitable Zone
Kepler-128
- Surface temperature
- 6,072 K (Sun: 5,772 K)
- Mass
- 1.18 M☉
- Radius
- 1.66 R☉
Habitable zone of Kepler-128: 1.351–3.160 AU (conservative: 1.711–2.996 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-128 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-128 b | Super Earth | 15 d | 1.42 R⊕ | 0.29 | 2013 |
| Kepler-128 c | Super Earth | 23 d | 1.52 R⊕ | 0.30 | 2013 |
Discovery History
The first planet found here, Kepler-128 b, was discovered in 2013 using the transit method.
- 2013 — Kepler-128 b (Transit)
- 2013 — Kepler-128 c (Transit)
Frequently Asked Questions About Kepler-128
How many planets does Kepler-128 have?
Kepler-128 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-128 system habitable?
None of the known planets in Kepler-128 orbit within the star's habitable zone.
How far away is Kepler-128?
Kepler-128 is about 1,293 light-years from Earth in the constellation Lyra.
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