The Kepler-102 System
Kepler-102 is a planetary system in the constellation Lyra hosting 5 confirmed exoplanets, about 352 light-years from Earth.
Size Comparison: The Planets of Kepler-102
Kepler-102: Star and Habitable Zone
Kepler-102
- Surface temperature
- 4,909 K (Sun: 5,772 K)
- Mass
- 0.80 M☉
- Radius
- 0.72 R☉
- Age
- 1.1 billion years (Sun: 4.6)
Habitable zone of Kepler-102: 0.411–0.998 AU (conservative: 0.521–0.946 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 5 Planets in the Kepler-102 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-102 b | Terrestrial | 5.3 d | 0.46 R⊕ | 0.26 | 2014 |
| Kepler-102 c | Terrestrial | 7.1 d | 0.57 R⊕ | 0.29 | 2014 |
| Kepler-102 d | Terrestrial | 10 d | 1.15 R⊕ | 0.33 | 2014 |
| Kepler-102 e | Mini Neptune | 16 d | 2.17 R⊕ | 0.31 | 2013 |
| Kepler-102 f | Terrestrial | 27 d | 0.86 R⊕ | 0.42 | 2014 |
Discovery History
The first planet found here, Kepler-102 e, was discovered in 2013 using the transit method. The most recent addition, Kepler-102 f, followed in 2014.
- 2013 — Kepler-102 e (Transit)
- 2014 — Kepler-102 b (Transit)
- 2014 — Kepler-102 c (Transit)
- 2014 — Kepler-102 d (Transit)
- 2014 — Kepler-102 f (Transit)
Frequently Asked Questions About Kepler-102
How many planets does Kepler-102 have?
Kepler-102 has 5 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-102 system habitable?
None of the known planets in Kepler-102 orbit within the star's habitable zone.
How far away is Kepler-102?
Kepler-102 is about 352 light-years from Earth in the constellation Lyra.
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