BK Весов

BK Весов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 15ч 25м 59,02с[1]
Склонение −20° 40′ 22,11″[1]
Видимая звёздная величина (V) 15,35[2]
Созвездие Весы
Астрометрия
Собственное движение
 • прямое восхождение −1,722 ± 0,114 mas/год[1]
 • склонение −5,775 ± 0,083 mas/год[1]
Параллакс (π) 0,0208 ± 0,0573 mas[1]
Спектральные характеристики
Переменность RR Лиры с асимметричной кривой блеска[вд][1][3][…]
Коды в каталогах
[SHM2017] J231.49590-20.67280, SV* HV 11602, 2MASS J15255901-2040221, CRTS J152559.2-204023, Gaia DR2 6252885763465035648 и BK Lib
Информация в базах данных
SIMBAD V* BK Lib
Логотип Викиданных Информация в Викиданных ?

BK Весов (лат. BK Librae) — одиночная переменная звезда в созвездии Весов на расстоянии (вычисленном из значения параллакса) приблизительно 156806 световых лет (около 48077 парсеков) от Солнца. Видимая звёздная величина звезды — от +16,2m до +14,8m[4].

Характеристики

BK Весов — пульсирующая переменная звезда типа RR Лиры (RRAB)[4].

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ Torrealba G., Catelan M., Drake A. J., McNaught R. H., Belokurov V., Koposov S., Graham M. J., Mahabal A., Larson S., Christensen E. Discovery of ~9,000 new RR Lyrae in the southern Catalina surveys (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2015. — Vol. 446, Iss. 3. — P. 2251–2266. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STU2274 — arXiv:1410.7653
  3. ↑ Sesar B., Hernitschek N., Mitrović S., Ivezić Ž., Cohen J. G., Rix H., Bernard E. J., Grebel E. K., Martin N. F., Schlafly E. F. et al. Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2017. — Vol. 153, Iss. 5. — P. 204—219. — 16 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/AA661B — arXiv:1611.08596
  4. ↑ 1 2 BK 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 6 августа 2012 на Wayback Machine Accessed online 2020-09-14.

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