The Kepler-1669 System
Kepler-1669 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 1,773 light-years from Earth.
Size Comparison: The Planets of Kepler-1669
Kepler-1669: Star and Habitable Zone
Kepler-1669
- Surface temperature
- 4,224 K (Sun: 5,772 K)
- Mass
- 0.61 M☉
- Radius
- 0.60 R☉
Habitable zone of Kepler-1669: 0.260–0.651 AU (conservative: 0.329–0.617 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-1669 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-1669 b | Mini Neptune | 9.5 d | 2.78 R⊕ | 0.26 | 2020 |
| Kepler-1669 c | Super Earth | 1.6 d | 1.90 R⊕ | 0.26 | 2021 |
| Kepler-1669 d | Terrestrial | 4.7 d | 1.22 R⊕ | 0.31 | 2023 |
Discovery History
The first planet found here, Kepler-1669 b, was discovered in 2020 using the transit method. The most recent addition, Kepler-1669 d, followed in 2023.
- 2020 — Kepler-1669 b (Transit)
- 2021 — Kepler-1669 c (Transit)
- 2023 — Kepler-1669 d (Transit)
Frequently Asked Questions About Kepler-1669
How many planets does Kepler-1669 have?
Kepler-1669 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-1669 system habitable?
None of the known planets in Kepler-1669 orbit within the star's habitable zone.
How far away is Kepler-1669?
Kepler-1669 is about 1,773 light-years from Earth in the constellation Cygnus.
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