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The Kepler-143 System

2 planets Cygnus

Kepler-143 is a planetary system in the constellation Cygnus hosting 2 confirmed exoplanets, about 2,640 light-years from Earth.

Size Comparison: The Planets of Kepler-143

Earth1.00 R⊕b2.41 R⊕c3.37 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-143: Star and Habitable Zone

Kepler-143

Surface temperature
5,848 K (Sun: 5,772 K)
Radius
1.36 R☉
Kepler-143 b Kepler-143 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-143: 1.040–2.447 AU (conservative: 1.318–2.320 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-143 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-143 bMini Neptune16 d2.41 R⊕0.252014
Kepler-143 cSub Neptune27 d3.37 R⊕0.222014

Discovery History

The first planet found here, Kepler-143 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-143

How many planets does Kepler-143 have?

Kepler-143 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-143 system habitable?

None of the known planets in Kepler-143 orbit within the star's habitable zone.

How far away is Kepler-143?

Kepler-143 is about 2,640 light-years from Earth in the constellation Cygnus.

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