55 Рака b

55 Рака b
Экзопланета
55 Рака b в представлении художника
55 Рака b в представлении художника
Родительская звезда
Звезда 55 Cancri A
Созвездие Рак
Прямое восхождение (α) 08ч 52м 35.8с
Склонение (δ) +28° 19′ 51″
Видимая звёздная величина (mV) 5,95
Расстояние 40,3 ± 0,4 св. года
(12,3 ± 0,1 пк)
Спектральный класс G8V
Металличность ([Fe/H]) 0,29
Возраст 7,4-8,7 млрд. лет
Элементы орбиты
Большая полуось (a) 0,115 ± 0,0000011 а. е.
Перицентр (q) 0,113 а. е.
Апоцентр (Q) 0,116 а. е.
Эксцентриситет (e) 0,014 ± 0,008
Орбитальный период (P) 14,65162 ± 0,0007 д.
(0,04011325 л.)
Наклонение (i) 89,73 ± 24,49 °[1][2]
Аргумент перицентра (ω) 131,94 ± 30°
Время перицентра (T0) 2,450,002.94749 ± 1,2 JD
Полуамплитуда лучевой(K)
скорости звезды		 71,32 ± 0,41 м/с
Физические характеристики
Масса (m) 0,95 ± 0,10 MJ
Минимальная масса (m sin i) 0,824 ± 0,007 MJ
Радиус(r) 1,152 ± 0,035 RJ
Температура (T) 5373 ± 9,7 K
Информация об открытии
Дата открытия 12 апреля 1996 года
Первооткрыватель(и) Butler, Marcy
Метод обнаружения Доплеровская спектроскопия
Место открытия Калифорния, США
Статус открытия Опубликовано
Другие обозначения
55 Cancri Ab, Rho1 Cancri b, HD 75732 b
Логотип Викисклада Медиафайлы на Викискладе
Логотип Викиданных Информация в Викиданных ?

55 Рака b или Галилей[3] — экзопланета в созвездии Рака, газовый гигант. Расположена в планетарной системе солнцеподобной звезды 55 Рака (HD 75732).

Примечания

  1. ↑ Nelson B. E., Ford E. B., Wright J. T., Fischer D. A., Braun K. v., Howard A. W., Payne M. J., Dindar S. The 55 Cancri planetary system: fully self-consistent N-body constraints and a dynamical analysis (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2014. — Vol. 441, Iss. 1. — P. 442–451. — 10 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STU450 — arXiv:1402.6343
  2. ↑ Extrasolar Planets Encyclopaedia (англ.) — 1995.
  3. ↑ Final Results of NameExoWorlds Public Vote Released (англ.). International Astronomical Union (15 декабря 2015). Дата обращения: 1 августа 2016. Архивировано 2 декабря 2017 года.

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