The KOI-142 System
KOI-142 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets, about 1,229 light-years from Earth.
Size Comparison: The Planets of KOI-142
Planets without a measured radius are not shown.
KOI-142: Star and Habitable Zone
KOI-142
- Surface temperature
- 5,466 K (Sun: 5,772 K)
- Mass
- 0.99 M☉
- Radius
- 0.90 R☉
Habitable zone of KOI-142: 0.614–1.459 AU (conservative: 0.777–1.383 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 KOI-142 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| KOI-142 b | Puffy Planet | 11 d | 3.44 R⊕ | 0.21 | 2013 |
| KOI-142 c | Cold Gas Giant | 22 d | — | 0.10 | 2013 |
| Kepler-88 d | Cold Gas Giant | 1,403 d | — | 0.17 | 2020 |
Discovery History
The first planet found here, KOI-142 b, was discovered in 2013 using the transit method. The most recent addition, Kepler-88 d, followed in 2020.
- 2013 — KOI-142 b (Transit)
- 2013 — KOI-142 c (Transit Timing Variations)
- 2020 — Kepler-88 d (Radial Velocity)
Frequently Asked Questions About KOI-142
How many planets does KOI-142 have?
KOI-142 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the KOI-142 system habitable?
None of the known planets in KOI-142 orbit within the star's habitable zone.
How far away is KOI-142?
KOI-142 is about 1,229 light-years from Earth in the constellation Lyra.
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