Английская Википедия:Gliese 54

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Версия от 19:50, 14 марта 2024; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{short description|Proximal star in the constellation Tucana}} {{Starbox begin | name = Gliese 54 }} {{Starbox observe | epoch = J2000 | constell = Tucana | ra = {{RA|01|10|22.8809}}<ref name="Gaia DR2"/> | dec = {{DEC|−67|26|41.9487}}<ref name="Gaia DR2"/> | appmag_v = 9.80 }} {{Starbox character | class = M2.5 (composite) | b-v = | u-b = }} {{Starbox astrometry | radial_v = |...»)
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Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox orbit Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end Gliese 54 (GJ 54 / HIP 5496 / LHS 1208)[1] is a star near the Solar System located at 25.7 light years away.[2] It is located in the constellation of Tucana, close to the edge, almost in the neighboring Hydrus. It is below the threshold of brightness to be observable to the naked eye with an apparent magnitude of +9.80.[1]

Gliese 54 is a red dwarf of spectral type M2 with an effective temperature of 4250 K.[3] In the SIMBAD database it appears listed as a variable star, getting the provisional variable designation NSV 427.[1] It has a companion with which it forms a binary system whose orbital period is 427 ± 9 days. The companion, a red dwarf whose brightness is ~1 magnitude lower than Gliese 54, has been resolved with the instrument NICMOS installed in the Hubble Space Telescope.[4]

The known stars closest to Gliese 54 are ζ Tucanae, solar analog 3.1 light years, and β Hydri 5.1 light years[5]

See also

References

Шаблон:Reflist

Шаблон:Stars of Tucana

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  1. ↑ 1,0 1,1 1,2 Шаблон:Cite simbad
  2. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Benedict2016 не указан текст
  3. ↑ Шаблон:Cite journal
  4. ↑ Шаблон:Cite journal
  5. ↑ Stars Within 15 light-years of Cape Photographic Durchmusterung -68 ° 41 (The Internet Stellar Database)
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