The Kepler-1398 System
Kepler-1398 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,780 light-years from Earth.
Size Comparison: The Planets of Kepler-1398
Kepler-1398: Star and Habitable Zone
Kepler-1398
- Surface temperature
- 6,126 K (Sun: 5,772 K)
- Mass
- 1.13 M☉
- Radius
- 1.18 R☉
- Age
- 3.1 billion years (Sun: 4.6)
Habitable zone of Kepler-1398: 0.975–2.277 AU (conservative: 1.234–2.159 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-1398 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-1398 b | Terrestrial | 2.8 d | 0.90 R⊕ | 0.29 | 2016 |
| Kepler-1398 c | Terrestrial | 4.1 d | 1.03 R⊕ | 0.29 | 2016 |
Discovery History
The first planet found here, Kepler-1398 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-1398 b (Transit)
- 2016 — Kepler-1398 c (Transit)
Frequently Asked Questions About Kepler-1398
How many planets does Kepler-1398 have?
Kepler-1398 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-1398 system habitable?
None of the known planets in Kepler-1398 orbit within the star's habitable zone.
How far away is Kepler-1398?
Kepler-1398 is about 2,780 light-years from Earth in the constellation Cygnus.
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