Английская Википедия:ADS 7251
Шаблон:Short description Шаблон:Sky Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe 2s Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox orbit Шаблон:Starbox detail Шаблон:Starbox catalogue Шаблон:Starbox reference Шаблон:Starbox end
ADS 7251 is a binary star system Шаблон:Val (Шаблон:Val) from the Sun. The components are near-identical red dwarfs separated by Шаблон:Val in 2019.
The two stars share a mildly eccentric orbit with a semimajor axis of Шаблон:Val and a period of 975 years. Their separation has closed from Шаблон:Val when they were discovered by F. G. W. Struve in 1821 to Шаблон:Val in 2019. Struve also documented two much fainter stars about Шаблон:Val from the two red dwarfs.[1]
ADS 7251 A is 0.06 magnitudes (six percent) brighter than ADS 7251 B. A catalogue of MK spectral classes lists both stars as secondary standards, with ADS 7251 A being class M0V and ADS 7251 B being class K7V, noted as being unusual in the brighter star having a later spectral type.[2] Other publications have described the stars as being both K7V, both M0V, or the primary being K7V and the secondary M0V.[3][4]
Planetary system
ADS 7251 B, also known as Gliese 338 B or HD 79211, is orbited by one known planet discovered in 2020 by radial velocity. Though described as a super-Earth by its discovery paper, it is closer in mass to Uranus.[4] An independent confirmation of the planet was published in 2022.[5]
Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet Шаблон:Orbitbox end
Notes
References
- ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокwds
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокKirkpatrick1991
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокskiff
не указан текст - ↑ 4,0 4,1 Ошибка цитирования Неверный тег
<ref>
; для сносокga2020
не указан текст - ↑ Ошибка цитирования Неверный тег
<ref>
; для сносокDiTomasso2023
не указан текст
- Английская Википедия
- Ursa Major
- Binary stars
- M-type main-sequence stars
- Gliese and GJ objects
- Planetary systems with one confirmed planet
- Multi-star planetary systems
- Henry Draper Catalogue objects
- Hipparcos objects
- Durchmusterung objects
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
- Страницы с ошибками в примечаниях