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The Kepler-174 System

3 planets 1 in habitable zone Lyra

Kepler-174 is a planetary system in the constellation Lyra hosting 3 confirmed exoplanets, about 1,255 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.

Size Comparison: The Planets of Kepler-174

Earth1.00 R⊕b1.96 R⊕c1.49 R⊕d2.19 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

Kepler-174: Star and Habitable Zone

Kepler-174

Surface temperature
4,880 K (Sun: 5,772 K)
Radius
0.62 R☉
Kepler-174 b Kepler-174 c Kepler-174 d
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of Kepler-174: 0.349–0.849 AU (conservative: 0.443–0.805 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-174 System

PlanetTypeOrbitRadiusESIDiscovered
Kepler-174 bSuper Earth14 d1.96 R⊕0.302014
Kepler-174 cSuper Earth44 d1.49 R⊕0.482014
Kepler-174 d HZMini Neptune247 d2.19 R⊕0.682014

Discovery History

The first planet found here, Kepler-174 b, was discovered in 2014 using the transit method.

Frequently Asked Questions About Kepler-174

How many planets does Kepler-174 have?

Kepler-174 has 3 confirmed exoplanets. More may await discovery.

Are any planets in the Kepler-174 system habitable?

One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.

How far away is Kepler-174?

Kepler-174 is about 1,255 light-years from Earth in the constellation Lyra.

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