Exoplanet YZ Ceti c

Exoplanet YZ Ceti c orbits star YZ Ceti that lies 12 light years away from the Sun. It weighs about 0.979 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
12 light years
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iconYZ Ceti c

Exoplanet
Star: YZ Ceti
icon distanceDistance from the star: 0.02156 AU
icon time Orbit around star: 3.05989 days +
Orbital period
Orbital period of exoplanet YZ Ceti c around its star is 3.05989 days.

The orbital period of an exoplanet is the time it takes to complete one full orbit around its star, usually measured in days. Most of the exoplanets discovered so far have orbital periods of less than one year... icon More about Orbital period in StellarGuide
icon timeEccentricity: 0.04

Basic characteristic

icon weight
Mass: 0.979 M Earth
+
Exoplanet mass
Exoplanet YZ Ceti c has 0.979 Earth masses.

The mass of an exoplanet is one of the most important characteristics for understanding what kind of world it is — whether it’s small and rocky like Earth or large and gaseous like Jupiter. Mass provides key information about the planet’s composition, gravity, and formation history... icon More about Exoplanet mass in StellarGuide
icon discoveryYear of discovery: 2017 (radial velocity)
Other designations of this exoplanet
GCTP 248.01 c, Gliese 54.1 c, GJ 54.1 c, G 268-135 c, LHS 138 c, LTT 670 c, L 725-32 c, HIP 5643 c, YZ Cet c
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YZ Ceti system structure

Exoplanet YZ Ceti c orbits star YZ Ceti, which has much lower mass than Sun. It is one of 3 known exoplanets orbiting this star.
YZ Ceti
YZ Ceti b 0.02 AU 0.7 M⊕ 2 days
YZ Ceti c 0.02 AU 1 M⊕ 3.1 days
YZ Ceti d 0.03 AU 1.1 M⊕ 4.7 days

Comparison

When comparing to the Solar system planets, YZ Ceti c has 98 % of mass of Earth and it orbits its star closer than Mercury orbits the Sun.
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
icon mass Mass 17.81.20.988.900.010.070.06
icon distance Distance0.060.030.020.010000

Habitability

Habitable zone of the star: 0.03 - 0.04 AU
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The planet is orbiting on the edge of the habitable zone of its star.
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The planet has mass comparable to Earth.
News from this star system

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