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Exoplanet NLTT 24399 b
Exoplanet NLTT 24399 b orbits star NLTT 24399 that lies 90 light years away from the Sun.
It weighs about 15.4 Earth masses and orbits its star further than Earth orbits Sun.
Sun distance
90 light years
90 light years
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NLTT 24399 b
Exoplanet, sub-neptune
Star: NLTT 24399
Distance from the star: 01288 AUBasic characteristic
Mass: 15.4 M Earth
Exoplanet mass
Exoplanet NLTT 24399 b has 15.4 Earth masses, or 1.05 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: 3.65 R Earth | 0.3 R Jupiter
Density: 1746 kg/m3 | 31.67 % Earth
Other designations of this exoplanet
TOI-1231 b, L 248-27 b, 2MASS J10265947-5228099 b, TIC 447061717 b, WISEA J102659.39-522806.1 b, Gaia DR2 5357465071715078016 b
TOI-1231 b, L 248-27 b, 2MASS J10265947-5228099 b, TIC 447061717 b, WISEA J102659.39-522806.1 b, Gaia DR2 5357465071715078016 b
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NLTT 24399 system structure
Exoplanet NLTT 24399 b orbits star NLTT 24399, which has lower mass than Sun. It is the only known exoplanet orbiting this star
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NLTT 24399 | ||||||||
| NLTT 24399 b | 1288 AU | 15.4 M⊕ | 3.7 R⊕ | - | |||||
Comparison
When comparing to the Solar system planets, NLTT 24399 b has 1.05 times the mass of Uranus and it orbits its star closer than Mercury orbits the Sun.
| Mercury | Venus | Earth | Mars | Jupiter | Saturn | Uranus | Neptune | ||
|---|---|---|---|---|---|---|---|---|---|
|
Mass | 280 | 18.9 | 15.4 | 140 | 0.05 | 0.16 | 1.05 | 0.9 |
|
Size | 9.53 | 3.84 | 3.65 | 6.89 | 0.33 | 0.4 | 0.91 | 0.96 |
|
Density | 0.32 | 0.33 | 0.32 | 0.43 | 1.4 | 2.51 | 1.39 | 1.01 |
|
Distance | 3302.56 | 1781.47 | 1288 | 845.14 | 247.55 | 135.02 | 67.15 | 42.85 |
Habitability
Habitable zone of the star: 0.2 - 0.29 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 1746 kg/m3 points to a gas planet. There could be habitable moons in orbit.
News from this star system
29. 06 2021
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