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Exoplanet Gliese 1151 b
(Unconfirmed Exoplanet)
Gliese 1151 b is an unconfirmed exoplanet detected around star Gliese 1151. More observations are needed to confirm its existence.
Sun distance
26 light years
26 light years
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Gliese 1151 b
Exoplanet
Star: Gliese 1151
Distance from the star: 0.01735 AU
Orbit around star: 2.018 days
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Orbital period
Orbital period of exoplanet Gliese 1151 b around its star is 2.018 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 M Earth
Exoplanet mass
Exoplanet Gliese 1151 b has 1 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: 1.35 R Earth | 0.1 R Jupiter
Density: 2241 kg/m3 | 40.65 % Earth
Year of discovery: 2021 (radial velocity)
Other designations of this exoplanet
G 122-49 b, LHS 316 b, PLX 2739.0 b, NLTT 28752 b, Zkh 171 b, GJ 1151 b, 2MASS J11505787+4822395 b, TIC 11893637 b, WISEA J115056.09+482228.4 b
G 122-49 b, LHS 316 b, PLX 2739.0 b, NLTT 28752 b, Zkh 171 b, GJ 1151 b, 2MASS J11505787+4822395 b, TIC 11893637 b, WISEA J115056.09+482228.4 b
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Gliese 1151 system structure
Exoplanet Gliese 1151 b orbits star Gliese 1151, which has much lower mass than Sun. It is one of 2 known exoplanets orbiting this star.
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Gliese 1151 | ||||||||
| Gliese 1151 b unconfirmed |
0.02 AU | 1 M⊕ | 1.4 R⊕ | 2 days | |||||
| Gliese 1151 c unconfirmed |
0.57 AU | 10.6 M⊕ | 389.7 days | ||||||
Comparison
When comparing to the Solar system planets, and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
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Mass | 18.18 | 1.23 | 1 | 9.09 | 0 | 0.01 | 0.07 | 0.06 |
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Size | 3.53 | 1.42 | 1.35 | 2.55 | 0.12 | 0.15 | 0.34 | 0.36 |
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Density | 0.41 | 0.43 | 0.41 | 0.55 | 1.8 | 3.22 | 1.78 | 1.3 |
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Distance | 0.04 | 0.02 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
Habitability
Habitable zone of the star: 16.9 - 24.4 AU
The planet is too hot to sustain liquid water.
The planet has mass comparable to Earth.