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Exoplanet Gliese 4256 b
Exoplanet Gliese 4256 b orbits star Gliese 4256 that lies 66 light years away from the Sun.
It weighs about 1.44 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
66 light years
66 light years
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Gliese 4256 b
Exoplanet, rocky planet, ultra-short period
Star: Gliese 4256
Distance from the star: 0.0054 AU
Orbit around star: 0.238182 days
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Orbital period
Orbital period of exoplanet Gliese 4256 b around its star is 0.238182 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: 1.44 M Earth
Exoplanet mass
Exoplanet Gliese 4256 b has 1.44 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...
More about Exoplanet mass in StellarGuide
Size: 1.079 R Earth | 0.1 R Jupiter
Density: 6320 kg/m3 | 114.64 % Earth
Temperature: 1300 K | 1026.85 °C
Year of discovery: 2024 (transit)
Other designations of this exoplanet
TOI-6255 b, GJ 4256 b, G 189-1 b
TOI-6255 b, GJ 4256 b, G 189-1 b
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Gliese 4256 system structure
Exoplanet Gliese 4256 b orbits star Gliese 4256, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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Gliese 4256 | ||||||||
| Gliese 4256 b | 0.01 AU | 1.4 M⊕ | 1.1 R⊕ | 0.2 days | |||||
Comparison
When comparing to the Solar system planets, Gliese 4256 b has 1.44 times the mass of Earth and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 26.18 | 1.77 | 1.44 | 13.09 | 0 | 0.02 | 0.1 | 0.08 |
|
Size | 2.82 | 1.14 | 1.08 | 2.04 | 0.1 | 0.12 | 0.27 | 0.28 |
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Density | 1.17 | 1.21 | 1.15 | 1.55 | 5.08 | 9.07 | 5.02 | 3.66 |
|
Distance | 0.01 | 0.01 | 0.01 | 0 | 0 | 0 | 0 | 0 |
|
Temperature | 2.95 | 1.76 | 4.51 | 6.25 | 7.98 | 9.77 | 16.67 | 18.06 |
Habitability
Habitable zone of the star: 0.12 - 0.17 AU
The planet orbits too close to its star and is exposed to extreme temperatures and radiation prohibiting life as we know it.
The planet has mass comparable to Earth.
News from this star system
02. 08 2024
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