The Kepler-19 System
Kepler-19 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets, about 713 light-years from Earth.
Size Comparison: The Planets of Kepler-19
Planets without a measured radius are not shown.
Kepler-19: Star and Habitable Zone
Kepler-19
- Surface temperature
- 5,544 K (Sun: 5,772 K)
- Mass
- 0.94 M☉
- Radius
- 0.86 R☉
- Age
- 1.9 billion years (Sun: 4.6)
Habitable zone of Kepler-19: 0.602–1.427 AU (conservative: 0.762–1.353 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 3 Planets in the Kepler-19 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-19 b | Super Earth | 9.3 d | 2.21 R⊕ | 0.26 | 2011 |
| Kepler-19 c | Neptune-like | 29 d | — | 0.24 | 2011 |
| Kepler-19 d | Neptune-like | 63 d | — | 0.29 | 2017 |
Discovery History
The first planet found here, Kepler-19 b, was discovered in 2011 using the transit method. The most recent addition, Kepler-19 d, followed in 2017.
- 2011 — Kepler-19 b (Transit)
- 2011 — Kepler-19 c (Transit Timing Variations)
- 2017 — Kepler-19 d (Radial Velocity)
Frequently Asked Questions About Kepler-19
How many planets does Kepler-19 have?
Kepler-19 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-19 system habitable?
None of the known planets in Kepler-19 orbit within the star's habitable zone.
How far away is Kepler-19?
Kepler-19 is about 713 light-years from Earth in the constellation Lyra.
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