Skip to main content

The Kepler-249 System

3 planets Cygnus

Kepler-249 is a planetary system in the constellation Cygnus hosting 3 confirmed exoplanets, about 621 light-years from Earth.

Size Comparison: The Planets of Kepler-249

Earth1.00 R⊕b1.09 R⊕c1.51 R⊕d1.57 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-249: Star and Habitable Zone

Kepler-249

Surface temperature
3,568 K (Sun: 5,772 K)
Radius
0.48 R☉
Kepler-249 b Kepler-249 c Kepler-249 d
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-249: 0.150–0.388 AU (conservative: 0.190–0.368 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 3 Planets in the Kepler-249 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-249 bTerrestrial3.3 d1.09 R⊕0.342014
Kepler-249 cSuper Earth7.1 d1.51 R⊕0.412014
Kepler-249 dSuper Earth15 d1.57 R⊕0.582014

Discovery History

The first planet found here, Kepler-249 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-249

How many planets does Kepler-249 have?

Kepler-249 has 3 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-249 system habitable?

None of the known planets in Kepler-249 orbit within the star's habitable zone.

How far away is Kepler-249?

Kepler-249 is about 621 light-years from Earth in the constellation Cygnus.

Exoplanet Explorer app icon

Explore the Kepler-249 system in the app

Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.

Download on the App Store