LHS 1140b
| LHS 1140b | |||
|---|---|---|---|
 | |||
| Moderstjerne | |||
| Moderstjerne | LHS 1140 | ||
| Stjernebilde | Hvalfisken | ||
| Bane | |||
| Store halvakse | 0,0875 (± 0,0041) AU AE | ||
| Eksentrisitet | <0,29 | ||
| Inklinasjon | 89,912 (± 0,071)° | ||
| Oppdagelse | |||
| Oppdaget | 20. april 2017 (publisert) | ||
| Oppdaget av | MEarth Project | ||
| Metode | Transit[1] | ||
| Karakteristikk | |||
| Masse (m) | 6,48±0,46[2] M⊕ | ||
| Radius (r) | 1,641±0,048[2] R⊕ | ||
| Tetthet (ρ) | 8,06 g/cm3 kg/m³ | ||
| Overflategravitasjon (g) | 2.41 G⊕ | ||
| Temperatur (T) | 230 K (−43 ℃) K | ||
LHS 1140b er en super-jord eksoplanet som kretser rundt en rød dverg, 40 lysår fra jorden i stjernebildet Hvalfisken. LHS 1140b ble oppdaget i 2017 av MEarth Project. Planeten har omtrent syv ganger jordens masse, og har en densitet på 12,5 g/cm3.
LHS 1140b befinner seg i den beboelige sonen av sitt solsystem,[3] og har en likevektstemperatur på −43 ℃.
Referanser
- ^ https://www.cfa.harvard.edu/MEarth/lhs1140b.html
- ^ a b Planetary system LHS 1140 revisited with ESPRESSO and TESS, 2020,
- ^ https://www.skyandtelescope.com/astronomy-news/welcome-lhs-1140b-super-earth-habitable-zone/ Arkivert 11. april 2019 hos Wayback Machine. | Welcome to LHS 1140b: A Super-Earth in the Habitable Zone | 18. april 2017
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