The Kepler-250 System
Kepler-250 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 2,481 light-years from Earth.
Size Comparison: The Planets of Kepler-250
Kepler-250: Star and Habitable Zone
Kepler-250
- Surface temperature
- 5,160 K (Sun: 5,772 K)
- Radius
- 0.81 R☉
Habitable zone of Kepler-250: 0.499–1.199 AU (conservative: 0.632–1.137 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-250 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-250 b | Terrestrial | 4.1 d | 1.13 R⊕ | 0.30 | 2014 |
| Kepler-250 c | Mini Neptune | 7.2 d | 2.28 R⊕ | 0.26 | 2014 |
| Kepler-250 d | Mini Neptune | 18 d | 2.18 R⊕ | 0.30 | 2014 |
Discovery History
The first planet found here, Kepler-250 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-250 b (Transit)
- 2014 — Kepler-250 c (Transit)
- 2014 — Kepler-250 d (Transit)
Frequently Asked Questions About Kepler-250
How many planets does Kepler-250 have?
Kepler-250 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-250 system habitable?
None of the known planets in Kepler-250 orbit within the star's habitable zone.
How far away is Kepler-250?
Kepler-250 is about 2,481 light-years from Earth in the constellation Cygnus.
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