DD Большого Пса

DD Большого Пса
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 7ч 24м 8,65с[1]
Склонение −19° 10′ 46,47″[1]
Расстояние 3017,502 ± 168,4483 пк[1]
Видимая звёздная величина (V) 11,56 ± 0,11[2]
Созвездие Большой Пёс
Астрометрия
Собственное движение
 • прямое восхождение −1,464 ± 0,018 mas/год[1]
 • склонение 1,63 ± 0,019 mas/год[1]
Параллакс (π) 0,3314 ± 0,0185 mas[1]
Спектральные характеристики
Показатель цвета
 • B−V 0,1
Переменность W Большой Медведицы[3]
Коды в каталогах
2MASS J07240864-1910465, Gaia DR1 2930597129707660928, Gaia DR2 2930597134013358464, DD CMa, TYC 5974-1117-1, TIC 412674574, ASAS J072409-1910.8 и Gaia DR3 2930597134013358464
Информация в базах данных
SIMBAD V* DD CMa
Логотип Викиданных Информация в Викиданных ?

DD Большого Пса (лат. DD Canis Majoris) — двойная затменная переменная звезда типа Алголя (EA) в созвездии Большого Пса на расстоянии приблизительно 8560 световых лет (около 2625 парсеков) от Солнца. Видимая звёздная величина звезды — от +12,64m до +11,52m[4]. Орбитальный период — около 2,0085 суток.

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  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. ↑ Heinze A. N., Tonry J. L., Denneau L., Stalder B., Rest A., Smith K. W., Smartt S. J., Weiland H. A First Catalog of Variable Stars Measured by the Asteroid Terrestrial-impact Last Alert System (ATLAS) (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2018. — Vol. 156, Iss. 5. — P. 241. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/AAE47F — arXiv:1804.02132
  4. ↑ DD 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 6 августа 2012 на Wayback Machine Accessed online 2020-08-24.

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