stars
exoplanets
news
Exoplanet LHS 1140 b
Exoplanet LHS 1140 b orbits star LHS 1140 that lies 49 light years away from the Sun.
It weighs about 5.60 Earth masses and orbits its star much closer than Earth orbits Sun.
Sun distance
49 light years
49 light years
Loading may take a moment.
LHS 1140 b
Exoplanet, super-earth
Star: LHS 1140
Distance from the star: 0.0946 AU
Orbit around star: 24.73723 days
+
Orbital period
Orbital period of exoplanet LHS 1140 b around its star is 24.73723 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: 5.60 M Earth
Exoplanet mass
Exoplanet LHS 1140 b has 5.60 Earth masses, or 0.38 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: 1.730 R Earth | 0.2 R Jupiter
Density: 5963 kg/m3 | 108.16 % Earth
Temperature: 226 K | -47.15 °C
Year of discovery: 2017 (transit)
Other designations of this exoplanet
G 268-38 b, G 270-58 b, GJ 3053 b, Gliese 3053 b, 2MASS J00445930-1516166 b, NLTT 2465 b, TIC 92226327 b, TOI-256 b, WISEA J004459.56-151623.9 b, WT 1138 b
G 268-38 b, G 270-58 b, GJ 3053 b, Gliese 3053 b, 2MASS J00445930-1516166 b, NLTT 2465 b, TIC 92226327 b, TOI-256 b, WISEA J004459.56-151623.9 b, WT 1138 b
Advertisement
LHS 1140 system structure
Exoplanet LHS 1140 b 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 b has 38 % of mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 101.82 | 6.87 | 5.6 | 50.91 | 0.02 | 0.06 | 0.38 | 0.33 |
|
Size | 4.52 | 1.82 | 1.73 | 3.26 | 0.15 | 0.19 | 0.43 | 0.46 |
|
Density | 1.1 | 1.14 | 1.08 | 1.46 | 4.79 | 8.56 | 4.74 | 3.45 |
|
Distance | 0.24 | 0.13 | 0.09 | 0.06 | 0.02 | 0.01 | 0 | 0 |
|
Temperature | 0.51 | 0.31 | 0.78 | 1.09 | 1.39 | 1.7 | 2.9 | 3.14 |
Habitability
Habitable zone of the star: 0.05 - 0.07 AU
The planet seems to be close to the outer edge of the habitable zone. It is probably very cold, but environment with higher temperatures might be possible.
The planet is bigger than Earth, but smaller than Neptune. Its average density seems to be comparable to rocky planets in the Solar System.