Английская Википедия:Gliese 357

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Версия от 19:49, 14 марта 2024; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{Short description|Red dwarf with low starspot activity in the Hydra constellation}} {{Starbox begin}} {{Starbox image | image = alt=Image showing a red star and three planets. GJ357d is green and covered with life. |300x300px | caption = Artist concept of the Gliese 357 (GJ357) system. | credit = Jack Madden }} {{Starbox observe | epoch=J2000 | constell =...»)
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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end GJ 357 (also designated Gliese 357) is an M-type main sequence star with an unusually low starspot activity.[1] It is located 31 light-years from the Solar System.[2] The system is part of the Hydra constellation.[2]

Planetary system

The star has three confirmed exoplanets in its orbit,[3] one of which, Gliese 357 d, is considered to be a "super-Earth" within the circumstellar habitable zone.[4][2][5][6]

Planets b and c are close to 3:7 mean-motion resonance. Presuming resonance chain crosses gap to outermost and cold super-terrestrial d and the resonances are simple, GJ 357 may have much more suitable planet for life at approx. 27.5 day period and almost Earth's flux, and (less likely) Mars-sized planet in 2:1 period ratio with GJ 357 c and 2:3 ratio with hypothetical HZ rocky one.Шаблон:Citation needed Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet Шаблон:OrbitboxPlanet Шаблон:OrbitboxPlanet Шаблон:Orbitbox end

References

Шаблон:Reflist Шаблон:Stars of Hydra

Шаблон:Red-dwarf-stub

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  1. ↑ Шаблон:Citation
  2. ↑ 2,0 2,1 2,2 Шаблон:Cite web
  3. ↑ Шаблон:Cite web
  4. ↑ Falconer, Rebecca, Newly uncovered super-Earth 31 light-years away may be habitable, Axios, August 1, 2019
  5. ↑ Шаблон:Cite web
  6. ↑ Шаблон:Cite web
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:Gliese_357&oldid=14962426