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The K2-58 System

3 planets Aquarius

K2-58 is a planetary system in the constellation Aquarius hosting 3 confirmed exoplanets, about 593 light-years from Earth.

Size Comparison: The Planets of K2-58

Earth1.00 R⊕b2.68 R⊕c1.62 R⊕d1.71 R⊕
Compare any two worlds side by side in the Exoplanet Explorer app ›

K2-58: Star and Habitable Zone

K2-58

Surface temperature
5,413 K (Sun: 5,772 K)
Mass
0.89 M☉
Radius
0.86 R☉
K2-58 b K2-58 c K2-58 d
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of K2-58: 0.579–1.378 AU (conservative: 0.733–1.307 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 K2-58 System

PlanetTypeOrbitRadiusESIDiscovered
K2-58 bMini Neptune7.1 d2.68 R⊕0.242016
K2-58 cSuper Earth2.5 d1.62 R⊕0.282016
K2-58 dSuper Earth23 d1.71 R⊕0.352016

Discovery History

The first planet found here, K2-58 b, was discovered in 2016 using the transit method.

Frequently Asked Questions About K2-58

How many planets does K2-58 have?

K2-58 has 3 confirmed exoplanets. More may await discovery.

Are any planets in the K2-58 system habitable?

None of the known planets in K2-58 orbit within the star's habitable zone.

How far away is K2-58?

K2-58 is about 593 light-years from Earth in the constellation Aquarius.

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