Ро Водолея

Ро Водолея
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 22ч 20м 11,92с[1]
Склонение −7° 49′ 15,97″[1]
Расстояние 230,187 ± 7,7783 пк[1]
Видимая звёздная величина (V) 5,339 ± 0,009[2]
Созвездие Водолей
Астрометрия
Лучевая скорость (Rv) −3,8 ± 7,4 км/с[3]
Собственное движение
 • прямое восхождение 14,803 ± 0,262 mas/год[1]
 • склонение −0,472 ± 0,14 mas/год[1]
Параллакс (π) 4,3443 ± 0,1468 mas[1]
Абсолютная звёздная величина (V) −1,78
Спектральные характеристики
Спектральный класс B8III[4]
Показатель цвета
 • B−V −0,053
 • U−B −0,346
Переменность пульсирующая типа α Лебедя
Физические характеристики
Радиус 6,89 R☉
Светимость 1035 L☉
Вращение 65 км/с[5]
Коды в каталогах

GSC 05804-01742, HD 211838, HIP 110273, SAO 146023, HR 8512, 2MASS J22201192-0749159, ρ Aqr, GC 31225, GCRV 14045, HIC 110273, N30 4918, PPM 206239, ROT 3249, TD1 28986, TYC 5804-1742-1, UBV 19105, YZ 98 7993, uvby98 100211838, SBC9 1368, WEB 19784, Gaia DR2 2616494287177247232, 46 Aqr, Gaia DR3 2616494287177247232, TIC 38353744, UBV M 26319, ALS 16599, Renson 58800 и EPIC 206326769

Информация в базах данных
SIMBAD * rho Aqr
Логотип Викиданных Информация в Викиданных ?

Ро Водолея (лат. ρ Aquarii), 46 Водолея (лат. 46 Aquarii), HD 211838 — двойная звезда в созвездии Водолея на расстоянии приблизительно 870 световых лет (около 267 парсеков) от Солнца. Видимая звёздная величина звезды — +5,339m[6].

Характеристики

Первый компонент — бело-голубой гигант спектрального класса B8III[4][5]. Масса — около 5 солнечных, радиус — около 6,89 солнечных, светимость — около 1035 солнечных. Эффективная температура — около 12593 К[7].

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  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. ↑ N.V. Kharchenko, R.-D. Scholz, A.E. Piskunov, Röser S., Schilbach E. Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations (англ.) // Astronomische Nachrichten — Wiley, 2007. — Vol. 328, Iss. 9. — P. 889—896. — ISSN 0004-6337; 1521-3994 — doi:10.1002/ASNA.200710776 — arXiv:0705.0878
  4. ↑ 1 2 Houk N., Swift C. Michigan catalogue of two-dimensional spectral types for the HD Stars (англ.) — 1999. — Vol. 5.
  5. ↑ 1 2 Abt H. A., Levato H., Grosso M. Rotational Velocities of B Stars (англ.) // The Astrophysical Journal / E. Vishniac — IOP Publishing, 2002. — Vol. 573, Iss. 1. — P. 359–365. — ISSN 0004-637X; 1538-4357 — doi:10.1086/340590
  6. ↑ Hog 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, 2009. — Vol. 500. — P. 583–586. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  7. ↑ Makaganiuk V., Kochukhov O., Piskunov N., Johns-Krull C. M., Keller C. U., Rodenhuis M., Valenti J. A., Stempels H. C. The search for magnetic fields in mercury-manganese stars (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2010. — Vol. 525. — P. 97–97. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201015666 — arXiv:1010.3931

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