The Kepler-603 System
Kepler-603 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 5,022 light-years from Earth.
Size Comparison: The Planets of Kepler-603
Kepler-603: Star and Habitable Zone
Kepler-603
- Surface temperature
- 5,808 K (Sun: 5,772 K)
- Mass
- 1.01 M☉
- Radius
- 1.01 R☉
- Age
- 4.4 billion years (Sun: 4.6)
Habitable zone of Kepler-603: 0.764–1.800 AU (conservative: 0.968–1.706 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 Kepler-603 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-603 b | Mini Neptune | 21 d | 2.65 R⊕ | 0.24 | 2016 |
| Kepler-603 c | Cold Gas Giant | 128 d | 6.50 R⊕ | 0.22 | 2016 |
| Kepler-603 d | Super Earth | 6.2 d | 1.32 R⊕ | 0.29 | 2016 |
Discovery History
The first planet found here, Kepler-603 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-603 b (Transit)
- 2016 — Kepler-603 c (Transit)
- 2016 — Kepler-603 d (Transit)
Frequently Asked Questions About Kepler-603
How many planets does Kepler-603 have?
Kepler-603 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-603 system habitable?
None of the known planets in Kepler-603 orbit within the star's habitable zone.
How far away is Kepler-603?
Kepler-603 is about 5,022 light-years from Earth in the constellation Cygnus.
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