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The Kepler-240 System

2 planets Lyra

Kepler-240 is a planetary system in the constellation Lyra hosting 2 confirmed exoplanets, about 2,436 light-years from Earth.

Size Comparison: The Planets of Kepler-240

Earth1.00 R⊕b1.37 R⊕c2.20 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-240: Star and Habitable Zone

Kepler-240

Surface temperature
4,985 K (Sun: 5,772 K)
Radius
0.74 R☉
Kepler-240 b Kepler-240 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-240: 0.431–1.043 AU (conservative: 0.546–0.989 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-240 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-240 bSuper Earth4.1 d1.37 R⊕0.302014
Kepler-240 cMini Neptune8.0 d2.20 R⊕0.272014

Discovery History

The first planet found here, Kepler-240 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-240

How many planets does Kepler-240 have?

Kepler-240 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-240 system habitable?

None of the known planets in Kepler-240 orbit within the star's habitable zone.

How far away is Kepler-240?

Kepler-240 is about 2,436 light-years from Earth in the constellation Lyra.

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