TW Весов

TW Весов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 14ч 44м 36,97с[1]
Склонение −19° 32′ 28,15″[1]
Расстояние 2343,24 ± 5 пк[2]
Созвездие Весы
Астрометрия
Лучевая скорость (Rv) 81,94 ± 6,51 км/с[2]
Собственное движение
 • прямое восхождение −4,922 ± 0,591 mas/год[1]
 • склонение −2,798 ± 0,605 mas/год[1]
Параллакс (π) 0,0299 ± 0,2662 mas[1]
Спектральные характеристики
Переменность долгопериодическая[3]
Физические характеристики
Температура 3000 К[4]
Коды в каталогах
AN 93.1925, ASAS J144437-1932.5, 2MASS J14443696-1932282, IRAS 14418-1919, SV* R 171, RAVE J144437.0-193228, [WWV2004] J1444369-193228, Gaia DR2 6281614215586496256, TW Lib и WISE J144436.97-193228.2
Информация в базах данных
SIMBAD V* TW Lib
Логотип Викиданных Информация в Викиданных ?

TW Весов (лат. TW Librae) — одиночная переменная звезда в созвездии Весов на расстоянии (вычисленном из значения параллакса) приблизительно 109082 световых лет (около 33445 парсеков) от Солнца. Видимая звёздная величина звезды — от +17m до +11,6m[5].

Характеристики

TW Весов — красная пульсирующая переменная звезда, мирида (M) спектрального класса Me[5]. Эффективная температура — около 3000 К[4].

Примечания

  1. ↑ 1 2 3 4 5 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ 1 2 Kunder A., Kordopatis G., Steinmetz M., Zwitter T., McMillan P. J., Casagrande L., Enke H., Wojno J., Valentini M., Chiappini C. et al. The Radial Velocity Experiment (RAVE): fifth data release (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2017. — Vol. 153, Iss. 2. — 30 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/153/2/75 — arXiv:1609.03210
  3. ↑ 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
  4. ↑ 1 2 Kordopatis G., Gilmore G., Steinmetz M., Boeche C., Seabroke G. M., Siebert A., Zwitter T., de Laverny P., Recio-Blanco A., Williams, M. E. K. et al. The radial velocity experiment (RAVE): fourth data release (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2013. — Vol. 146, Iss. 5. — 36 p. — ISSN 0004-6256; 1538-3881 — doi:10.1088/0004-6256/146/5/134 — arXiv:1309.4284
  5. ↑ 1 2 TW Lib, 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 2020-09-11.

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