The Kepler-273 System
Kepler-273 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,329 light-years from Earth.
Size Comparison: The Planets of Kepler-273
Kepler-273: Star and Habitable Zone
Kepler-273
- Surface temperature
- 5,626 K (Sun: 5,772 K)
- Radius
- 0.82 R☉
Habitable zone of Kepler-273: 0.585–1.384 AU (conservative: 0.741–1.313 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-273 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-273 b | Super Earth | 2.9 d | 1.50 R⊕ | 0.28 | 2014 |
| Kepler-273 c | Super Earth | 8.0 d | 1.98 R⊕ | 0.27 | 2014 |
Discovery History
The first planet found here, Kepler-273 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-273 b (Transit)
- 2014 — Kepler-273 c (Transit)
Frequently Asked Questions About Kepler-273
How many planets does Kepler-273 have?
Kepler-273 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-273 system habitable?
None of the known planets in Kepler-273 orbit within the star's habitable zone.
How far away is Kepler-273?
Kepler-273 is about 2,329 light-years from Earth in the constellation Cygnus.
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