The Kepler-1987 System
Kepler-1987 is a planetary system in the constellation Cygnus hosting 4 confirmed exoplanets, about 1,943 light-years from Earth.
Size Comparison: The Planets of Kepler-1987
Kepler-1987: Star and Habitable Zone
Kepler-1987
- Surface temperature
- 4,769 K (Sun: 5,772 K)
- Mass
- 0.80 M☉
- Radius
- 0.71 R☉
Habitable zone of Kepler-1987: 0.385–0.940 AU (conservative: 0.488–0.891 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-1987 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-1987 b | Terrestrial | 2.3 d | 1.23 R⊕ | 0.29 | 2023 |
| Kepler-1987 c | Super Earth | 3.6 d | 1.33 R⊕ | 0.30 | 2023 |
| Kepler-1987 d | Mini Neptune | 5.6 d | 2.66 R⊕ | 0.24 | 2023 |
| Kepler-1987 e | Super Earth | 8.7 d | 1.92 R⊕ | 0.29 | 2023 |
Discovery History
The first planet found here, Kepler-1987 b, was discovered in 2023 using the transit method.
- 2023 — Kepler-1987 b (Transit)
- 2023 — Kepler-1987 c (Transit)
- 2023 — Kepler-1987 d (Transit)
- 2023 — Kepler-1987 e (Transit)
Frequently Asked Questions About Kepler-1987
How many planets does Kepler-1987 have?
Kepler-1987 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-1987 system habitable?
None of the known planets in Kepler-1987 orbit within the star's habitable zone.
How far away is Kepler-1987?
Kepler-1987 is about 1,943 light-years from Earth in the constellation Cygnus.
Explore the Kepler-1987 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
