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The Kepler-377 System

2 planets Cygnus

Kepler-377 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,687 light-years from Earth.

Size Comparison: The Planets of Kepler-377

Earth1.00 R⊕b1.39 R⊕c2.06 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-377: Star and Habitable Zone

Kepler-377

Surface temperature
5,949 K (Sun: 5,772 K)
Radius
1.22 R☉
Kepler-377 b Kepler-377 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-377: 0.964–2.261 AU (conservative: 1.221–2.143 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-377 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-377 bSuper Earth13 d1.39 R⊕0.292014
Kepler-377 cMini Neptune27 d2.06 R⊕0.282014

Discovery History

The first planet found here, Kepler-377 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-377

How many planets does Kepler-377 have?

Kepler-377 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-377 system habitable?

None of the known planets in Kepler-377 orbit within the star's habitable zone.

How far away is Kepler-377?

Kepler-377 is about 2,687 light-years from Earth in the constellation Cygnus.

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