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The Kepler-155 System

2 planets Cygnus

Kepler-155 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 957 light-years from Earth.

Size Comparison: The Planets of Kepler-155

Earth1.00 R⊕b2.09 R⊕c2.24 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-155: Star and Habitable Zone

Kepler-155

Surface temperature
4,508 K (Sun: 5,772 K)
Radius
0.62 R☉
Kepler-155 b Kepler-155 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-155: 0.302–0.745 AU (conservative: 0.382–0.706 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 2 Planets in the Kepler-155 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-155 bMini Neptune5.9 d2.09 R⊕0.312014
Kepler-155 cMini Neptune53 d2.24 R⊕0.732014

Discovery History

The first planet found here, Kepler-155 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-155

How many planets does Kepler-155 have?

Kepler-155 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-155 system habitable?

None of the known planets in Kepler-155 orbit within the star's habitable zone.

How far away is Kepler-155?

Kepler-155 is about 957 light-years from Earth in the constellation Cygnus.

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