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The K2-111 System

2 planets Taurus

K2-111 is a planetary system in the constellation Taurus hosting 2 confirmed exoplanets, about 654 light-years from Earth.

Size Comparison: The Planets of K2-111

Earth1.00 R⊕b1.84 R⊕
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Planets without a measured radius are not shown.

K2-111: Star and Habitable Zone

K2-111

Spectral type
G2
Surface temperature
5,775 K (Sun: 5,772 K)
Mass
0.84 M☉
Radius
1.25 R☉
Age
12.3 billion years (Sun: 4.6)
K2-111 b K2-111 c
Too hot Optimistic habitable zone Conservative habitable zone Too cold

Habitable zone of K2-111: 0.937–2.208 AU (conservative: 1.187–2.094 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 K2-111 System

PlanetTypeOrbitRadiusESIDiscovered
K2-111 bSuper Earth5.4 d1.84 R⊕0.272017
K2-111 cNeptune-like16 d0.212020

Discovery History

The first planet found here, K2-111 b, was discovered in 2017 using the transit method. The most recent addition, K2-111 c, followed in 2020.

Frequently Asked Questions About K2-111

How many planets does K2-111 have?

K2-111 has 2 confirmed exoplanets. More may await discovery.

Are any planets in the K2-111 system habitable?

None of the known planets in K2-111 orbit within the star's habitable zone.

How far away is K2-111?

K2-111 is about 654 light-years from Earth in the constellation Taurus.

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