Exoplanets similar to Neptune have cloudy atmospheres and high metalicity

11. 10. 2023 (accepted)

Exoplanets similar to Neptune have cloudy atmospheres and high metalicity

Star system: Gliese 436 | Distance from the Sun: 31.9 light years

A new analysis of exo-Neptune transmission spectra reveals that these planets have very cloudy atmospheres and high metallicity. Colder exo-Neptunes may have clearer atmospheres, making them better targets for future studies and the search for life beyond Earth

Generated by LLM, corrected by human

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Scientific study

Clouds and Clarity: Revisiting Atmospheric Feature Trends in Neptune-size Exoplanets external link

Stars mentioned

Gliese 436

M3V, Red dwarf

mass: 0.41 M☉

radius: 0.3 R☉

distance: 31.9 ly

stars in the system: 1

exoplanets: 1

Gliese 1214

M4V, Red dwarf

mass: 0.18 M☉

radius: 0.3 R☉

distance: 47.8 ly

stars in the system: 1

exoplanets: 1

TOI-270

M3.0V C, Red dwarf

mass: 0.4 M☉

radius: 0.3 R☉

distance: 73.3 ly

stars in the system: 1

exoplanets: 3

Gliese 3470

M1.5Ve, Red dwarf

mass: 0.51 M☉

radius: 0.3 R☉

distance: 95.9 ly

stars in the system: 1

exoplanets: 4

K2-135

K6V C, Orange star

mass: 0.59 M☉

radius: 0.7 R☉

distance: 96.7 ly

stars in the system: 1

exoplanets: 3

HAT-P-11

K4V, Orange star

mass: 0.8 M☉

radius: 0.7 R☉

distance: 124 ly

stars in the system: 1

exoplanets: 2

K2-18

M2.8, Red dwarf

mass: 0.41 M☉

radius: 0.3 R☉

distance: 124 ly

stars in the system: 1

exoplanets: 2

TOI-674

M2V, Red dwarf

mass: 0.44 M☉

radius: 0.3 R☉

distance: 150 ly

stars in the system: 1

exoplanets: 1

HD 3167

Orange star

mass: 0.85 M☉

radius: 0.7 R☉

distance: 154 ly

stars in the system: 1

exoplanets: 4

HIP 41378

F8 D, Yellow-White star

mass: 1.25 M☉

radius: 1.5 R☉

distance: 346 ly

stars in the system: 1

exoplanets: 6

HD 106315

Yellow star

mass: 1.09 M☉

radius: 1 R☉

distance: 356 ly

stars in the system: 1

exoplanets: 2

HAT-P-26

K1 D, Orange star

mass: 0.82 M☉

radius: 0.7 R☉

distance: 466 ly

stars in the system: 1

exoplanets: 2

Kepler-51

G4.5V, Yellow star

mass: 0.99 M☉

radius: 1 R☉

distance: 2615 ly

stars in the system: 1

exoplanets: 4

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Exoplanets similar to Neptune have cloudy atmospheres and high metalicity

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