TT Большого Пса

TT Большого Пса
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 7ч 22м 1,98с[1]
Склонение −14° 56′ 56,98″[1]
Созвездие Большой Пёс
Астрометрия
Лучевая скорость (Rv) 59 км/с[2]
Собственное движение
 • прямое восхождение −5,014 ± 0,423 mas/год[1]
 • склонение −2,919 ± 0,412 mas/год[1]
Параллакс (π) 1,5683 ± 0,2655 mas[1]
Спектральные характеристики
Спектральный класс S[3]
Переменность долгопериодическая[4]
Коды в каталогах

AN 56.1931, CSS 341, IRAS 07197-1451, ASAS J072202-1457.0, RAFGL 4593S, S1* 225, [LMW2001] 370, [LTY2003] NIRS 07197-1451, 2MASS J07220198-1456569, Gaia DR2 3031770002112678400 и TT CMa

Информация в базах данных
SIMBAD V* TT CMa
Логотип Викиданных Информация в Викиданных ?

TT Большого Пса (лат. TT Canis Majoris) — одиночная переменная звезда в созвездии Большого Пса на расстоянии (вычисленном из значения параллакса) приблизительно 2080 световых лет (около 638 парсеков) от Солнца. Видимая звёздная величина звезды — от более +15,5m до +10,7m[5].

Характеристики

TT Большого Пса — красная пульсирующая переменная S-звезда, мирида (M) спектрального класса S[5][3].

Примечания

  1. ↑ 1 2 3 4 5 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ Feast M. W., Whitelock P. A. Mira kinematics from Hipparcos data: a Galactic bar to beyond the Solar circle (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2000. — Vol. 317, Iss. 2. — P. 460–487. — ISSN 0035-8711; 1365-2966 — doi:10.1046/J.1365-8711.2000.03629.X — arXiv:astro-ph/0004107
  3. ↑ 1 2 Cameron D., Nassau J. J. Spectral classification of red variables along the galactic equator (англ.) // The Astrophysical Journal Letters — United Kingdom: IOP Publishing, 1956. — Vol. 124. — P. 346–366. — ISSN 2041-8205; 2041-8213 — doi:10.1086/146230
  4. ↑ Vogt N., Contreras-Quijada A., Fuentes-Morales I., Vogt-Geisse S., Arcos C., Abarca C., Agurto-Gangas C., Caviedes M., DaSilva H., Flores J. et al. Determination of pulsation periods and other parameters of 2875 stars classified as Mira in the All Sky Automated Survey (ASAS) (англ.) // The Astrophysical Journal: Supplement Series — AAS, 2016. — Vol. 227, Iss. 1. — 13 p. — ISSN 0067-0049; 1538-4365 — doi:10.3847/0067-0049/227/1/6 — arXiv:1609.05246
  5. ↑ 1 2 TT 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 2020-08-20.

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