Exoplanet
A dense super-Earth in the habitable zone of a quiet red dwarf, considered one of the best targets for atmospheric study.
| Type | Exoplanet |
|---|---|
| Orbits | LHS 1140 |
| Distance from Earth | 48.9 ly |
| Diameter | 22,005 km |
| Mass | 3.34 × 10^25 kg |
| Temperature | -47°C |
| Orbital period | 25 days |
| Discovered | 2017 |
At 22,005 km across, LHS 1140 b is 1.7 times the diameter of Earth.
Its mass is 5.6 times the mass of Earth.
A single orbit takes 24.7 days.
The light reaching us from LHS 1140 b tonight left it around 49 years ago.
An average temperature of 226 K works out at -47 degrees Celsius, colder than the 15 degrees Earth averages.
It has been on record since 2017.
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