The Kepler-37 System
Kepler-37 is a planetary system in the constellation Lyra hosting 4 confirmed exoplanets, about 209 light-years from Earth.
Size Comparison: The Planets of Kepler-37
Planets without a measured radius are not shown.
Kepler-37: Star and Habitable Zone
Kepler-37
- Surface temperature
- 5,357 K (Sun: 5,772 K)
- Mass
- 0.79 M☉
- Radius
- 0.79 R☉
- Age
- 7.6 billion years (Sun: 4.6)
Habitable zone of Kepler-37: 0.522–1.244 AU (conservative: 0.661–1.180 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 4 Planets in the Kepler-37 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-37 b | Terrestrial | 13 d | 0.31 R⊕ | 0.23 | 2013 |
| Kepler-37 c | Terrestrial | 21 d | 0.76 R⊕ | 0.34 | 2013 |
| Kepler-37 d | Puffy Planet | 40 d | 2.03 R⊕ | 0.37 | 2013 |
| Kepler-37 e | — | 51 d | — | 0.37 | 2014 |
Discovery History
The first planet found here, Kepler-37 b, was discovered in 2013 using the transit method. The most recent addition, Kepler-37 e, followed in 2014.
- 2013 — Kepler-37 b (Transit)
- 2013 — Kepler-37 c (Transit)
- 2013 — Kepler-37 d (Transit)
- 2014 — Kepler-37 e (Transit Timing Variations)
Frequently Asked Questions About Kepler-37
How many planets does Kepler-37 have?
Kepler-37 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-37 system habitable?
None of the known planets in Kepler-37 orbit within the star's habitable zone.
How far away is Kepler-37?
Kepler-37 is about 209 light-years from Earth in the constellation Lyra.
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