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The K2-63 System

2 planets Aquarius

K2-63 is a planetary system in the constellation Aquarius hosting 2 confirmed exoplanets, about 1,688 light-years from Earth.

Size Comparison: The Planets of K2-63

Earth1.00 R⊕b3.22 R⊕c3.90 R⊕
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K2-63: Star and Habitable Zone

K2-63

Surface temperature
6,771 K (Sun: 5,772 K)
Mass
1.40 M☉
Radius
1.63 R☉
K2-63 b K2-63 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of K2-63: 1.584–3.664 AU (conservative: 2.006–3.474 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 K2-63 System

PlanetTypeOrbitRadiusESIDiscovered
K2-63 bSub Neptune20 d3.22 R⊕0.222016
K2-63 cSub Neptune25 d3.90 R⊕0.202016

Discovery History

The first planet found here, K2-63 b, was discovered in 2016 using the transit method.

Frequently Asked Questions About K2-63

How many planets does K2-63 have?

K2-63 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the K2-63 system habitable?

None of the known planets in K2-63 orbit within the star's habitable zone.

How far away is K2-63?

K2-63 is about 1,688 light-years from Earth in the constellation Aquarius.

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