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The Kepler-300 System

2 planets Cygnus

Kepler-300 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 3,583 light-years from Earth.

Size Comparison: The Planets of Kepler-300

Earth1.00 R⊕b1.67 R⊕c2.25 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-300: Star and Habitable Zone

Kepler-300

Surface temperature
5,986 K (Sun: 5,772 K)
Radius
0.90 R☉
Kepler-300 b Kepler-300 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-300: 0.716–1.678 AU (conservative: 0.907–1.591 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-300 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-300 bSuper Earth10 d1.67 R⊕0.282014
Kepler-300 cMini Neptune41 d2.25 R⊕0.272014

Discovery History

The first planet found here, Kepler-300 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-300

How many planets does Kepler-300 have?

Kepler-300 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-300 system habitable?

None of the known planets in Kepler-300 orbit within the star's habitable zone.

How far away is Kepler-300?

Kepler-300 is about 3,583 light-years from Earth in the constellation Cygnus.

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