AC Водолея

AC Водолея
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 21ч 16м 21,86с[1]
Склонение −2° 13′ 41,98″[1]
Расстояние 2981,15 ± 736 пк[2]
Видимая звёздная величина (V) 10,247 ± 0,072[3]
Созвездие Водолей
Астрометрия
Лучевая скорость (Rv) −2,8 ± 0,49 км/с[2]
Собственное движение
 • прямое восхождение −4,439 ± 0,021 mas/год[1]
 • склонение −6,679 ± 0,014 mas/год[1]
Параллакс (π) 0,2315 ± 0,0193 mas[1]
Спектральные характеристики
Спектральный класс F8[4]
Показатель цвета
 • B−V 1,354
Переменность SRD полуправильная[5][4] и долгопериодическая[4]
Физические характеристики
Температура 4474 К[2]
Металличность −1,83[2]
Коды в каталогах

GCRV 13366, GSC 05198-00361, PPM 205007, 2MASS J21162185-0213420, RAVE J211621.9-021342, Gaia DR1 2685699400160700800, WEB 19081, Gaia DR2 2685699404455601280, AC Aqr, AAVSO 2111-02, TYC 5198-361-1, TIC 248564916 и Gaia DR3 2685699404455601280

Информация в базах данных
SIMBAD V* AC Aqr
Логотип Викиданных Информация в Викиданных ?

AC Водолея (лат. AC Aquarii) — одиночная переменная звезда в созвездии Водолея на расстоянии (вычисленном из значения параллакса) приблизительно 11476 световых лет (около 3519 парсеков) от Солнца. Видимая звёздная величина звезды — от +10,5m до +10m[6].

Характеристики

AC Водолея — жёлто-белая пульсирующая полуправильная переменная звезда типа SRD (SRD) спектрального класса F8[6]. Эффективная температура — около 4390 К[7].

Примечания

  1. ↑ 1 2 3 4 5 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  2. ↑ 1 2 3 4 Steinmetz M., Guiglion G., McMillan P. J., Matijevič G., Enke H., Kordopatis G., Zwitter T., Valentini M., Chiappini C., Casagrande L. et al. The Sixth Data Release of the Radial Velocity Experiment (RAVE). II. Stellar Atmospheric Parameters, Chemical Abundances, and Distances (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2020. — Vol. 160, Iss. 2. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/AB9AB8 — arXiv:2002.04512
  3. ↑ Munari U., Henden A., Frigo A., Zwitter T., Bienaymé O., Boeche C., Freeman K. C., Gilmore G., Grebel E. K., Kordopatis G. et al. APASS Landolt-Sloan BVgri photometry of RAVE stars. I. Data, effective temperatures, and reddenings (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2014. — Vol. 148, Iss. 5. — 15 p. — ISSN 0004-6256; 1538-3881 — doi:10.1088/0004-6256/148/5/81 — arXiv:1408.5476
  4. ↑ 1 2 3 SIMBAD Astronomical Database
  5. ↑ Samus N. N., Durlevich O. V., et a. General Catalogue of Variable Stars (Samus+ 2007-2011) — 2009. — Т. 1. — С. 2025.
  6. ↑ 1 2 AC Aqr, 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 2020-10-08.
  7. ↑ Hansen T. T., Holmbeck E. M., Beers T. C., Placco V. M., Roederer I. U., Sakari C. M., Simon J. D., Thompson I. B. The R-process Alliance: First Release from the Southern Search for R-process-enhanced Stars in the Galactic Halo (англ.) // The Astrophysical Journal / E. Vishniac — IOP Publishing, 2018. — Vol. 858, Iss. 2. — P. 92. — ISSN 0004-637X; 1538-4357 — doi:10.3847/1538-4357/AABACC — arXiv:1804.03114

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