The Kepler-1859 System
Kepler-1859 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 4,342 light-years from Earth.
Size Comparison: The Planets of Kepler-1859
Kepler-1859: Star and Habitable Zone
Kepler-1859
- Surface temperature
- 5,887 K (Sun: 5,772 K)
- Mass
- 1.09 M☉
- Radius
- 1.24 R☉
Habitable zone of Kepler-1859: 0.956–2.246 AU (conservative: 1.211–2.129 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-1859 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-1859 b | Super Earth | 2.7 d | 1.58 R⊕ | 0.28 | 2021 |
| Kepler-1859 c | Super Earth | 3.6 d | 1.66 R⊕ | 0.27 | 2023 |
Discovery History
The first planet found here, Kepler-1859 b, was discovered in 2021 using the transit method. The most recent addition, Kepler-1859 c, followed in 2023.
- 2021 — Kepler-1859 b (Transit)
- 2023 — Kepler-1859 c (Transit)
Frequently Asked Questions About Kepler-1859
How many planets does Kepler-1859 have?
Kepler-1859 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-1859 system habitable?
None of the known planets in Kepler-1859 orbit within the star's habitable zone.
How far away is Kepler-1859?
Kepler-1859 is about 4,342 light-years from Earth in the constellation Cygnus.
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