V481 Близнецов

V481 Близнецов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 6ч 22м 29,50с[1]
Склонение +27° 34′ 42,45″[1]
Расстояние 294,3081 ± 4,2529 пк[1]
Видимая звёздная величина (V) 11,59 ± 0,16[2]
Созвездие Близнецы
Астрометрия
Собственное движение
 • прямое восхождение 49,606 ± 0,075 mas/год[1]
 • склонение −63,173 ± 0,067 mas/год[1]
Параллакс (π) 3,3978 ± 0,0491 mas[1]
Спектральные характеристики
Показатель цвета
 • B−V 0,66
Переменность W Большой Медведицы[3][4][…]
Коды в каталогах
ASAS J062230+2734.7, V481 Gem, 2MASS J06222949+2734426, [GGM2006] 7102201, TYC 1886-1869-1, NSVS 7102202, Gaia DR1 3433440424571181952, Gaia DR2 3433440424571181952, ATO J095.6231+27.5781 и TIC 84046917
Информация в базах данных
SIMBAD ASAS J062230+2734.7
Логотип Викиданных Информация в Викиданных ?

V481 Близнецов (лат. V481 Geminorum) — двойная затменная переменная звезда типа W Большой Медведицы (EW) в созвездии Близнецов на расстоянии приблизительно 960 световых лет (около 294 парсек) от Солнца. Видимая звёздная величина звезды — от +12,25m до +11,68m[5]. Орбитальный период — около 0,3409 суток (8,1806 часа)[6].

Характеристики

Первый компонент — жёлтый карлик спектрального класса G. Радиус — около 1,16 солнечного, светимость — около 1,304 солнечной. Эффективная температура — около 5720 К[1].

Второй компонент — жёлтый карлик спектрального класса G.

Примечания

  1. ↑ 1 2 3 4 5 6 7 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. ↑ Gettel S. J., Geske M. T., McKay T. A. A catalog of 1022 bright contact binary stars (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2006. — Vol. 131, Iss. 1. — P. 621–632. — ISSN 0004-6256; 1538-3881 — doi:10.1086/498016 — arXiv:astro-ph/0509819
  4. ↑ Hoffman D. I., Harrison T. E., McNamara B. J. Automated variable star classification using the Northern Sky Variability Survey (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2009. — Vol. 138, Iss. 2. — P. 466–477. — ISSN 0004-6256; 1538-3881 — doi:10.1088/0004-6256/138/2/466
  5. ↑ V481 Gem Архивная копия от 16 июля 2020 на Wayback Machine, 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 2022-05-25.
  6. ↑ N. N. Samus’, Kazarovets E. V., Durlevich O. V., Kireeva N. N., Pastukhova E. N. General catalogue of variable stars: Version GCVS 5.1 (англ.) // Astronomy Reports / D. Bisikalo — MAIK Nauka/Interperiodica, Springer Science+Business Media, 2017. — Vol. 61, Iss. 1. — P. 80–88. — ISSN 1063-7729; 1562-6881; 0004-6299 — doi:10.1134/S1063772917010085

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