Aster › Space program › LHS 1140 b
LHS 1140 b
Position on the route: 40/45 · level needed 1700 · journey (Mk0 engine) 350.5 h
By the numbers
| Distance | ≈ 48 light-years |
|---|---|
| Radius | ≈ 1.7 Earths |
| Mass | ≈ 5.6 Earths |
| Year | 24.7 days |
The story
A super-Earth: its density suggests a rocky core and a possible ocean. The star is a small M dwarf and the planet lies in the outer part of the habitable zone. JWST is looking for its atmosphere and traces of liquid water.
Surface gravity is about twice Earth’s: the human body would face a heavy load. Still, the chance of an ocean world makes it interesting.
Missions
- MEarth and HARPS (2017): discovery
- JWST observations: the search for an atmosphere
Colony note
Heavy gravity, a possible ocean: water may be plentiful. A shield and cryo sleep are a must.
What probes bring back
- About 48 light-years; radius ≈ 1.7 Earths, a super-Earth; JWST is searching for its atmosphere.
- Its density suggests a rocky core and a possible water ocean.