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Exoplanet LHS 1140 d
(Unconfirmed Exoplanet)
LHS 1140 d is an unconfirmed exoplanet detected around star LHS 1140. More observations are needed to confirm its existence.
Sun distance
49 light years
49 light years
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LHS 1140 d
Exoplanet, sub-neptune
Star: LHS 1140
Distance from the star: 0.210 AUBasic characteristic
Mass: 3.9 M Earth
Exoplanet mass
Exoplanet LHS 1140 d has 3.9 Earth masses, or 0.27 times the mass of Uranus.
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: 2 R Earth | 0.2 R Jupiter
Density: 2688 kg/m3 | 48.76 % Earth
Other designations of this exoplanet
G 268-38 d, G 270-58 d, GJ 3053 d, Gliese 3053 d, 2MASS J00445930-1516166 d, NLTT 2465 d, TIC 92226327 d, TOI-256 d, WISEA J004459.56-151623.9 d, WT 1138 d
G 268-38 d, G 270-58 d, GJ 3053 d, Gliese 3053 d, 2MASS J00445930-1516166 d, NLTT 2465 d, TIC 92226327 d, TOI-256 d, WISEA J004459.56-151623.9 d, WT 1138 d
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LHS 1140 system structure
Exoplanet LHS 1140 d orbits star LHS 1140, which has much lower mass than Sun. It is one of 3 known exoplanets orbiting this star.
|
|
LHS 1140 | ||||||||
| LHS 1140 c | 0.03 AU | 1.9 M⊕ | 1.3 R⊕ | 3.8 days | |||||
| LHS 1140 b | 0.09 AU | 5.6 M⊕ | 1.7 R⊕ | 24.7 days | |||||
| LHS 1140 d unconfirmed |
0.21 AU | 3.9 M⊕ | 2 R⊕ | - | |||||
Comparison
When comparing to the Solar system planets, LHS 1140 d has 27 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 70.91 | 4.79 | 3.9 | 35.45 | 0.01 | 0.04 | 0.27 | 0.23 |
|
Size | 5.22 | 2.11 | 2 | 3.77 | 0.18 | 0.22 | 0.5 | 0.53 |
|
Density | 0.5 | 0.51 | 0.49 | 0.66 | 2.16 | 3.86 | 2.14 | 1.56 |
|
Distance | 0.54 | 0.29 | 0.21 | 0.14 | 0.04 | 0.02 | 0.01 | 0.01 |
Habitability
Habitable zone of the star: 0.05 - 0.07 AU
The planet is too cold to sustain liquid water on its surface. It is however possible that there is environment with higher temperatures on some of its potential moons.
The planet is bigger than Earth and smaller than Neptune. Its average density 2688 kg/m3 points to a gas planet. There could be habitable moons in orbit.