The Kepler-561 System
Kepler-561 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,027 light-years from Earth.
Size Comparison: The Planets of Kepler-561
Kepler-561: Star and Habitable Zone
Kepler-561
- Surface temperature
- 5,646 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Radius
- 0.94 R☉
- Age
- 4.3 billion years (Sun: 4.6)
Habitable zone of Kepler-561: 0.679–1.605 AU (conservative: 0.860–1.522 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-561 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-561 b | Cold Gas Giant | 58 d | 6.96 R⊕ | 0.24 | 2016 |
| Kepler-561 c | Mini Neptune | 5.4 d | 2.68 R⊕ | 0.23 | 2016 |
Discovery History
The first planet found here, Kepler-561 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-561 b (Transit)
- 2016 — Kepler-561 c (Transit)
Frequently Asked Questions About Kepler-561
How many planets does Kepler-561 have?
Kepler-561 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-561 system habitable?
None of the known planets in Kepler-561 orbit within the star's habitable zone.
How far away is Kepler-561?
Kepler-561 is about 2,027 light-years from Earth in the constellation Cygnus.
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