Английская Википедия:20 Monocerotis

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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

20 Monocerotis is a single[1] star located about 194[2] light years away from the Sun in the equatorial constellation of Monoceros. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.92.[3] The star is receding from the Earth with a heliocentric radial velocity of +78 km/s.[4]

This object is an aging giant star with a stellar classification of K0 III.[5] It is a red clump giant,[6] which indicates it is on the horizontal branch and is generating energy through helium fusion at its core. The star is around six[7] billion years old with 1.1 times the mass of the Sun. After exhausting the supply of hydrogen at its core, it has expanded to 10.3[2] times the Sun's radius. It is radiating 46[2] times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,714 K.[7]

In addition to the primary, three visual companions have been reported: component B, with magnitude 12.93 and separation 67.8", C, with magnitude 10.16 and separation 167.9", and D, with magnitude 12.46 and separation 102.3".[8]

References

Шаблон:Reflist

Шаблон:Stars of Monoceros

  1. Шаблон:Citation
  2. 2,0 2,1 2,2 Ошибка цитирования Неверный тег <ref>; для сносок GaiaDR2 не указан текст
  3. Ошибка цитирования Неверный тег <ref>; для сносок Ducati2002 не указан текст
  4. Ошибка цитирования Неверный тег <ref>; для сносок Jofre2015 не указан текст
  5. Ошибка цитирования Неверный тег <ref>; для сносок Hoffleit1991 не указан текст
  6. Шаблон:Citation
  7. 7,0 7,1 Ошибка цитирования Неверный тег <ref>; для сносок jofre2015 не указан текст
  8. Шаблон:Cite journal Vizier catalog entry