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The Kepler-104 System

3 planets 2 stars Lyra

Kepler-104 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets around 2 stars, about 1,307 light-years from Earth.

Size Comparison: The Planets of Kepler-104

Earth1.00 R⊕b3.10 R⊕c3.13 R⊕d3.58 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Star Kepler-104 and Its Habitable Zone

Kepler-104

Surface temperature
5,711 K (Sun: 5,772 K)
Radius
1.35 R☉
Kepler-104 b Kepler-104 c Kepler-104 d
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-104: 0.993–2.344 AU (conservative: 1.258–2.222 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-104 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-104 bSub Neptune11 d3.10 R⊕0.212014
Kepler-104 cSub Neptune24 d3.13 R⊕0.232014
Kepler-104 dSub Neptune52 d3.58 R⊕0.252014

Discovery History

The first planet found here, Kepler-104 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-104

How many planets does Kepler-104 have?

Kepler-104 has 3 confirmed exoplanets distributed around its 2 stars. More may await discovery.

Are any planets in the Kepler-104 system habitable?

None of the known planets in Kepler-104 orbit within the star's habitable zone.

How far away is Kepler-104?

Kepler-104 is about 1,307 light-years from Earth in the constellation Lyra.

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