Английская Википедия:HD 212301

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:End

HD 212301 is a binary star[1] system in the south circumpolar constellation of Octans. This star is also called HIP 110852.[2] With an apparent visual magnitude of 7.76,[3] it is too faint to be visible to the naked eye. The system is located at a distance of 177 light years from the Sun based on parallax,[4] and is drifting further away with a radial velocity of +4.7 km/s.[3] It has an absolute magnitude of 4.06.[3]

The primary, component A, is an F-type main-sequence star with a stellar classification of F8V.[5] It has 20%[6] greater mass than the Sun and a 23%[4] larger radius. Its age is about the same as the Sun and it is spinning with a projected rotational velocity of 5.4 km/s.[7] It is a metal-rich star with 50% more metals than the Sun has.[7] The star is radiating 1.9[4] times the luminosity of the Sun from its photosphere at an effective temperature of 6,169 K.[4]

A secondary companion was announced in 2009. This faint star is located at an angular separation of Шаблон:Val to the northwest of the primary, corresponding to a projected separation of Шаблон:Val. This is a red dwarf with an estimated class of M3V and a mass equal to around 35% of the mass of the Sun. The pair share a common proper motion.[1]

A hot jupiter candidate exoplanet was discovered orbiting the primary, based on radial velocity observations taken in 2003 and 2005.[7]

Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet Шаблон:Orbitbox end

See also

References

Шаблон:Reflist

External links

Шаблон:Sky Шаблон:Stars of Octans

  1. 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок Mugrauer2009 не указан текст
  2. Ошибка цитирования Неверный тег <ref>; для сносок SIMBAD не указан текст
  3. 3,0 3,1 3,2 Ошибка цитирования Неверный тег <ref>; для сносок Anderson2012 не указан текст
  4. 4,0 4,1 4,2 4,3 Ошибка цитирования Неверный тег <ref>; для сносок GaiaDR2 не указан текст
  5. Ошибка цитирования Неверный тег <ref>; для сносок Houk1979 не указан текст
  6. Ошибка цитирования Неверный тег <ref>; для сносок Luck2018 не указан текст
  7. 7,0 7,1 7,2 Ошибка цитирования Неверный тег <ref>; для сносок Lo Curto2006 не указан текст