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Exoplanet YZ Ceti b
Exoplanet YZ Ceti b orbits star YZ Ceti that lies 12 light years away from the Sun.
It weighs about 0.699 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
12 light years
12 light years
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YZ Ceti b
Exoplanet
Star: YZ Ceti
Distance from the star: 0.01634 AU
Orbit around star: 2.02087 days
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Orbital period
Orbital period of exoplanet YZ Ceti b around its star is 2.02087 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...
More about Orbital period in StellarGuide
Basic characteristic
Mass: 0.699 M Earth
Exoplanet mass
Exoplanet YZ Ceti b has 0.699 Earth masses, or 0.86 times the mass of Venus.
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...
More about Exoplanet mass in StellarGuide
Year of discovery: 2017 (radial velocity)
Other designations of this exoplanet
GCTP 248.01 b, Gliese 54.1 b, GJ 54.1 b, G 268-135 b, LHS 138 b, LTT 670 b, L 725-32 b, HIP 5643 b, YZ Cet b
GCTP 248.01 b, Gliese 54.1 b, GJ 54.1 b, G 268-135 b, LHS 138 b, LTT 670 b, L 725-32 b, HIP 5643 b, YZ Cet b
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Comparison
When comparing to the Solar system planets, YZ Ceti b has 86 % of mass of Venus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 12.71 | 0.86 | 0.7 | 6.35 | 0 | 0.01 | 0.05 | 0.04 |
|
Distance | 0.04 | 0.02 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
Habitability
Habitable zone of the star: 0.03 - 0.04 AU
The planet's orbit is close to hotter edge of the habitable zone of its star.
The planet has mass comparable to Earth.
News from this star system
06. 04 2023
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