The Kepler-198 System
Kepler-198 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets, about 1,616 light-years from Earth.
Size Comparison: The Planets of Kepler-198
Kepler-198: Star and Habitable Zone
Kepler-198
- Surface temperature
- 5,574 K (Sun: 5,772 K)
- Radius
- 0.94 R☉
Habitable zone of Kepler-198: 0.664–1.575 AU (conservative: 0.842–1.493 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-198 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-198 b | Mini Neptune | 18 d | 2.82 R⊕ | 0.24 | 2014 |
| Kepler-198 c | Mini Neptune | 50 d | 2.47 R⊕ | 0.33 | 2014 |
| Kepler-198 d | Super Earth | 1.3 d | 1.53 R⊕ | 0.28 | 2016 |
Discovery History
The first planet found here, Kepler-198 b, was discovered in 2014 using the transit method. The most recent addition, Kepler-198 d, followed in 2016.
- 2014 — Kepler-198 b (Transit)
- 2014 — Kepler-198 c (Transit)
- 2016 — Kepler-198 d (Transit)
Frequently Asked Questions About Kepler-198
How many planets does Kepler-198 have?
Kepler-198 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-198 system habitable?
None of the known planets in Kepler-198 orbit within the star's habitable zone.
How far away is Kepler-198?
Kepler-198 is about 1,616 light-years from Earth in the constellation Lyra.
Explore the Kepler-198 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.
