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The Kepler-520 System

2 planets Cygnus

Kepler-520 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,035 light-years from Earth.

Size Comparison: The Planets of Kepler-520

Earth1.00 R⊕b1.66 R⊕c1.07 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-520: Star and Habitable Zone

Kepler-520

Surface temperature
6,112 K (Sun: 5,772 K)
Mass
1.10 M☉
Radius
1.09 R☉
Age
2.0 billion years (Sun: 4.6)
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-520: 0.897–2.096 AU (conservative: 1.136–1.988 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-520 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-520 bSuper Earth20 d1.66 R⊕0.282016
Kepler-520 cTerrestrial5.2 d1.07 R⊕0.292016

Discovery History

The first planet found here, Kepler-520 b, was discovered in 2016 using the transit method.

Frequently Asked Questions About Kepler-520

How many planets does Kepler-520 have?

Kepler-520 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-520 system habitable?

None of the known planets in Kepler-520 orbit within the star's habitable zone.

How far away is Kepler-520?

Kepler-520 is about 2,035 light-years from Earth in the constellation Cygnus.

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