The Kepler-48 System
Kepler-48 is a planetary system in the constellation Cygnus hosting 5 confirmed exoplanets, about 1,000 light-years from Earth.
Size Comparison: The Planets of Kepler-48
Planets without a measured radius are not shown.
Kepler-48: Star and Habitable Zone
Kepler-48
- Surface temperature
- 5,194 K (Sun: 5,772 K)
- Mass
- 0.88 M☉
- Radius
- 0.89 R☉
- Age
- 3.1 billion years (Sun: 4.6)
Habitable zone of Kepler-48: 0.558–1.339 AU (conservative: 0.707–1.269 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-48 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-48 b | Super Earth | 4.8 d | 1.88 R⊕ | 0.27 | 2012 |
| Kepler-48 c | Super Earth | 9.7 d | 2.71 R⊕ | 0.24 | 2012 |
| Kepler-48 d | Super Earth | 43 d | 2.04 R⊕ | 0.38 | 2014 |
| Kepler-48 e | Cold Gas Giant | 982 d | — | 0.18 | 2014 |
| Kepler-48 f | Cold Gas Giant | 5,220 d | — | 0.08 | 2023 |
Discovery History
The first planet found here, Kepler-48 b, was discovered in 2012 using the transit method. The most recent addition, Kepler-48 f, followed in 2023.
- 2012 — Kepler-48 b (Transit)
- 2012 — Kepler-48 c (Transit)
- 2014 — Kepler-48 d (Transit)
- 2014 — Kepler-48 e (Radial Velocity)
- 2023 — Kepler-48 f (Radial Velocity)
Frequently Asked Questions About Kepler-48
How many planets does Kepler-48 have?
Kepler-48 has 5 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-48 system habitable?
None of the known planets in Kepler-48 orbit within the star's habitable zone.
How far away is Kepler-48?
Kepler-48 is about 1,000 light-years from Earth in the constellation Cygnus.
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