The Kepler-539 System
Kepler-539 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 1,002 light-years from Earth.
Size Comparison: The Planets of Kepler-539
Planets without a measured radius are not shown.
Kepler-539: Star and Habitable Zone
Kepler-539
- Spectral type
- G2 V
- Surface temperature
- 5,820 K (Sun: 5,772 K)
- Mass
- 1.05 M☉
- Radius
- 0.95 R☉
Habitable zone of Kepler-539: 0.723–1.702 AU (conservative: 0.916–1.613 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-539 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-539 b | Cold Gas Giant | 126 d | 8.37 R⊕ | 0.31 | 2016 |
| Kepler-539 c | Cold Gas Giant | 1,000 d | — | 0.20 | 2016 |
Discovery History
The first planet found here, Kepler-539 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-539 b (Transit)
- 2016 — Kepler-539 c (Transit Timing Variations)
Frequently Asked Questions About Kepler-539
How many planets does Kepler-539 have?
Kepler-539 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-539 system habitable?
None of the known planets in Kepler-539 orbit within the star's habitable zone.
How far away is Kepler-539?
Kepler-539 is about 1,002 light-years from Earth in the constellation Cygnus.
Explore the Kepler-539 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.
