EE Водолея

EE Водолея
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 22ч 34м 41,97с[1]
Склонение −19° 51′ 35,31″[1]
Расстояние 104,3798 ± 0,8912 пк[1]
Видимая звёздная величина (V) 8,09 ± 0,01[2]
Созвездие Водолей
Астрометрия
Лучевая скорость (Rv) −2,3 ± 2,5 км/с[3]
Собственное движение
 • прямое восхождение 15,346 ± 0,103 mas/год[1]
 • склонение −8,226 ± 0,089 mas/год[1]
Параллакс (π) 9,5804 ± 0,0818 mas[1]
Спектральные характеристики
Спектральный класс F0V[4]
Показатель цвета
 • B−V 0,37
Переменность затменная типа Беты Лиры[5]
Коды в каталогах

BD-20 6454, CPD-20 8380, GCRV 14182, GSC 06389-01223, HD 213863, HIC 111452, HIP 111452, PPM 240471, SAO 191236, SV* BV 320, TD1 29179, TYC 6389-1223-1, YZ 110 9549, 2MASS J22344196-1951351, 1RXS J223443.7-195125, ASAS J223443-1951.4, Gaia DR1 2401669055347176704, uvby98 100213863, GEN# +1.00213863, WEB 19927, Gaia DR2 2401669055347176704 и EE Aqr

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

EE Водолея (лат. EE Aquarii), HD 213863 — двойная затменная переменная звезда типа Беты Лиры (EB) в созвездии Водолея на расстоянии приблизительно 340 световых лет (около 104 парсеков) от Солнца. Видимая звёздная величина звезды — от +8,55m до +7,91m[6]. Орбитальный период — около 0,509 суток (12,216 часов).

Характеристики

Первый компонент — жёлто-белая звезда спектрального класса F0V[6][4]. Эффективная температура — около 7307 К[1].

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. ↑ Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system (англ.) // Astronomy Letters / R. Sunyaev — Nauka, Springer Science+Business Media, 2006. — Vol. 32, Iss. 11. — P. 759–771. — ISSN 1063-7737; 1562-6873; 0320-0108; 0360-0327 — doi:10.1134/S1063773706110065 — arXiv:1606.08053
  4. ↑ 1 2 Houk N., Smith-Moore M. Catalogue of two-dimensional spectral types for the HD stars (англ.) — 1988. — Vol. 4.
  5. ↑ Kiraga M. ASAS photometry of ROSAT sources. I. Periodic variable stars coincident with bright sources from the ROSAT All Sky Survey (англ.) // Acta Astronomica / M. Kubiak — Copernicus Foundation for Polish Astronomy, 2012. — Vol. 62, Iss. 1. — P. 67—95. — ISSN 0001-5237 — arXiv:1204.3825
  6. ↑ 1 2 EE 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 1 июля 2015 на Wayback Machine Accessed online 2020-10-14.

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