The Kepler-903 System
Kepler-903 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets, about 4,466 light-years from Earth.
Size Comparison: The Planets of Kepler-903
Kepler-903: Star and Habitable Zone
Kepler-903
- Surface temperature
- 5,682 K (Sun: 5,772 K)
- Mass
- 0.98 M☉
- Radius
- 0.97 R☉
- Age
- 4.8 billion years (Sun: 4.6)
Habitable zone of Kepler-903: 0.708–1.672 AU (conservative: 0.897–1.586 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 2 Planets in the Kepler-903 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| Kepler-903 b | Mini Neptune | 10 d | 2.01 R⊕ | 0.26 | 2016 |
| Kepler-903 c | Mini Neptune | 63 d | 2.53 R⊕ | 0.28 | 2016 |
Discovery History
The first planet found here, Kepler-903 b, was discovered in 2016 using the transit method.
- 2016 — Kepler-903 b (Transit)
- 2016 — Kepler-903 c (Transit)
Frequently Asked Questions About Kepler-903
How many planets does Kepler-903 have?
Kepler-903 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the Kepler-903 system habitable?
None of the known planets in Kepler-903 orbit within the star's habitable zone.
How far away is Kepler-903?
Kepler-903 is about 4,466 light-years from Earth in the constellation Lyra.
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