47 Близнецов

47 Близнецов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 7ч 11м 23,07с[1]
Склонение +26° 51′ 23,72″[1]
Расстояние 113,788 ± 0,4998 пк[1]
Видимая звёздная величина (V) 5,75 ± 0,009[2]
Созвездие Близнецы
Астрометрия
Лучевая скорость (Rv) 38,5 ± 4,3 км/с[3][4][…]
Собственное движение
 • прямое восхождение −19,21 ± 0,039 mas/год[1]
 • склонение −33,061 ± 0,033 mas/год[1]
Параллакс (π) 8,7883 ± 0,0386 mas[1]
Абсолютная звёздная величина (V) 0,37
Спектральные характеристики
Спектральный класс A4IV[5]
Показатель цвета
 • B−V 0,11
 • U−B 0,13
Переменность Переменная типа Дельты Щита
Физические характеристики
Радиус 3,88 R☉
Температура 8260 К[6]
Вращение 102 км/с[7][8]
Коды в каталогах

FK5 2553, GCRV 4728, GSC 01904-01157, HD 54801, HIC 34722, HIP 34722, 2MASS J07112308+2651236, N30 1576, PPM 97154, ROT 1150, SAO 79141, TD1 9292, UBV 6990, uvby98 100054801, YZ 26 3789, AG+26 774, BD+27 1327, WEB 6940, Gaia DR2 883371800947871360, 47 Gem, Gaia DR3 883371800947871360, TIC 101571163, GC 9493, HR 2700, TYC 1904-1157-1 и UBV M 12939

Информация в базах данных
SIMBAD * 47 Gem
Логотип Викиданных Информация в Викиданных ?

47 Близнецов (лат. 47 Geminorum, HD 54801) — одиночная звезда в созвездии Близнецов на расстоянии приблизительно 375 световых лет (около 115 парсеков) от Солнца. Видимая звёздная величина звезды — +5,75m[2].

Характеристики

47 Близнецов — белый субгигант спектрального класса A4IV[5]. Радиус — около 3,88 солнечных, светимость — около 59,59 солнечных. Эффективная температура — около 8260 К[6].

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  2. ↑ 1 2 Oja T. UBV photometry of stars whose positions are accurately known. VI (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 1991. — Vol. 89. — P. 415–419. — 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. ↑ Duflot M., Figon P., Meyssonnier N. Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 1995. — Vol. 114. — P. 269–280. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  5. ↑ 1 2 Cowley A., Cowley C., Jaschek M., Jaschek C. A study of the bright A stars. I. A catalogue of spectral classifications, A study of the bright stars. I. A catalogue of spectral classifications (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 1969. — Vol. 74. — P. 375–406. — ISSN 0004-6256; 1538-3881 — doi:10.1086/110819
  6. ↑ 1 2 Zorec J., Royer F. Rotational velocities of A-type stars. IV. Evolution of rotational velocities (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2012. — Vol. 537. — 22 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201117691 — arXiv:1201.2052
  7. ↑ Royer F., Zorec J., Gómez A. E. Rotational velocities of A-type stars. III. Velocity distributions (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2007. — Vol. 463, Iss. 2. — P. 671–682. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361:20065224 — arXiv:astro-ph/0610785
  8. ↑ Royer F., Grenier S., Baylac, M. -O., Gómez A. E., Zorec J. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2002. — Vol. 393, Iss. 3. — P. 897—911. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361:20020943 — arXiv:astro-ph/0205255

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