EF Большого Пса

EF Большого Пса
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 7ч 24м 37,68с[1]
Склонение −17° 29′ 19,00″[1]
Расстояние 2349,6241 ± 188,8091 пк[1]
Видимая звёздная величина (V) 11,8 ± 0,15[2]
Созвездие Большой Пёс
Астрометрия
Собственное движение
 • прямое восхождение −1,126 ± 0,051 mas/год[1]
 • склонение 1,272 ± 0,057 mas/год[1]
Параллакс (π) 0,4256 ± 0,0342 mas[1]
Спектральные характеристики
Показатель цвета
 • B−V 0,29
Переменность затменная типа Алголя[3]
Коды в каталогах
TYC 5970-1117-1, AN 59.1929, CSV 1041, SV* P 470, 2MASS J07243768-1729190, Gaia DR1 3027651192892727680, Gaia DR2 3027651197195343872 и EF CMa
Информация в базах данных
SIMBAD V* EF CMa
Логотип Викиданных Информация в Викиданных ?

EF Большого Пса (лат. EF Canis Majoris) — двойная затменная переменная звезда типа Алголя (EA) в созвездии Большого Пса на расстоянии приблизительно 7663 световых лет (около 2350 парсеков) от Солнца. Видимая звёздная величина звезды — от +12,13m до +11,34m[4]. Орбитальный период — около 59,364 суток.

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ Høg E., Fabricius C., Makarov V. V., Urban S., Corbin T., Wycoff G., Bastian U., Schwekendiek P., Wicenec A. The Tycho-2 catalogue of the 2.5 million brightest stars (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2000. — Vol. 355. — P. L27—L30. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  3. ↑ Kukarkin B. V., Kholopov P. N., Pskovsky Y. P., Efremov Y. N., Kukarkina N. P., Kurochkin N. E., Medvedeva G. I. General Catalogue of Variable Stars, 3rd ed. — 1971.
  4. ↑ EF CMa, database entry, Combined General Catalog of Variable Stars (GCVS5.1, 2017 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Архивная копия от 1 июля 2015 на Wayback Machine Accessed online 2020-08-25.

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