HD 73389

О звезде E Киля см. E Киля, о звезде e¹ Киля см. HD 73390

e² Киля
Звезда
Графики недоступны из-за технических проблем. См. информацию на Фабрикаторе и на mediawiki.org.
Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 08ч 35м 19,60с
Склонение −58° 00′ 33″
Расстояние 230 ± 7 св. лет (70 ± 2 пк)
Видимая звёздная величина (V) +4,84
Созвездие Киль
Астрометрия
Лучевая скорость (Rv) 25,62 ± 0,13 км/с[2]
Собственное движение
 • прямое восхождение 54,775 ± 0,253 mas/год[1]
 • склонение 27,012 ± 0,218 mas/год[1]
Параллакс (π) 14.17 ± 0.45 mas
Абсолютная звёздная величина (V) +0.6
Спектральные характеристики
Спектральный класс K0III
Показатель цвета
 • B−V 0,998
Физические характеристики
Масса 2,9 M⊙
Радиус 10,1 R⊙
Температура 5000 K
Светимость 49,2 L⊙
Металличность −0,1[3]
Коды в каталогах
HR 3414, HD 73389, CP−57°1591, HIP 42134, SAO 236106, GC 11797, CCDM J08353-5801
Информация в базах данных
SIMBAD * e02 Car
Логотип Викиданных Информация в Викиданных ?

HD 73389, также известная как e² Киля (e² Car) — двойная звезда в созвездии Киля. Она удалена от Земли на 230 световых лет.

Характеристики

Главный компонент, e² Киля A, оранжевый гигант спектрального класса К с видимым блеском +4.84. Вторая звезда, e² Киля B, звезда восьмой звёздной величины, удалённая от главного компонента на 0.29 угловых секунд (20 а. е.). Систему звёзд можно разрешить только в очень крупный телескоп вследствие большой разницы в блеске компонентов и малого расстояния между ними. Сама же звезда видна невооружённым глазом только в ясную ночь и только людьми с хорошим зрением. В России не наблюдается, видна к югу от 30 с.ш.

Примечания

  1. ↑ 1 2 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  2. ↑ Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  3. ↑ Charbonnel C., Lagarde N., Jasniewicz G., North P. L., Shetrone M., Krugler Hollek J., Smith V. V., Smiljanic R., Palacios A., Ottoni G. Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2020. — Vol. 633. — 15 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201936360 — arXiv:1910.12732

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