The Kepler-253 System
Kepler-253 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 2,735 light-years from Earth.
Size Comparison: The Planets of Kepler-253
Kepler-253: Star and Habitable Zone
Kepler-253
- Surface temperature
- 5,208 K (Sun: 5,772 K)
- Radius
- 0.79 R☉
Habitable zone of Kepler-253: 0.495–1.187 AU (conservative: 0.627–1.126 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-253 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-253 b | Super Earth | 3.8 d | 1.63 R⊕ | 0.28 | 2014 |
| Kepler-253 c | Mini Neptune | 10 d | 2.65 R⊕ | 0.25 | 2014 |
| Kepler-253 d | Sub Neptune | 18 d | 3.17 R⊕ | 0.25 | 2014 |
Discovery History
The first planet found here, Kepler-253 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-253 b (Transit)
- 2014 — Kepler-253 c (Transit)
- 2014 — Kepler-253 d (Transit)
Frequently Asked Questions About Kepler-253
How many planets does Kepler-253 have?
Kepler-253 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-253 system habitable?
None of the known planets in Kepler-253 orbit within the star's habitable zone.
How far away is Kepler-253?
Kepler-253 is about 2,735 light-years from Earth in the constellation Cygnus.
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