The Kepler-173 System
Kepler-173 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,717 light-years from Earth.
Size Comparison: The Planets of Kepler-173
Kepler-173: Star and Habitable Zone
Kepler-173
- Surface temperature
- 6,031 K (Sun: 5,772 K)
- Radius
- 0.95 R☉
Habitable zone of Kepler-173: 0.764–1.789 AU (conservative: 0.968–1.696 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-173 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-173 b | Super Earth | 4.3 d | 1.29 R⊕ | 0.29 | 2014 |
| Kepler-173 c | Mini Neptune | 8.0 d | 2.43 R⊕ | 0.24 | 2014 |
Discovery History
The first planet found here, Kepler-173 b, was discovered in 2014 using the transit method.
- 2014 — Kepler-173 b (Transit)
- 2014 — Kepler-173 c (Transit)
Frequently Asked Questions About Kepler-173
How many planets does Kepler-173 have?
Kepler-173 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-173 system habitable?
None of the known planets in Kepler-173 orbit within the star's habitable zone.
How far away is Kepler-173?
Kepler-173 is about 2,717 light-years from Earth in the constellation Cygnus.
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