72 Большой Медведицы

72 Большой Медведицы
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 12ч 26м 32,61с[1]
Склонение +55° 09′ 34,02″[1]
Расстояние 126,525 ± 0,357 пк[1]
Видимая звёздная величина (V) 7,06 ± 0,009[2]
Созвездие Большая Медведица
Астрометрия
Лучевая скорость (Rv) 15 ± 19,7 км/с[3][4]
Собственное движение
 • прямое восхождение 12,876 ± 0,02 mas/год[1]
 • склонение 10,015 ± 0,023 mas/год[1]
Параллакс (π) 7,9036 ± 0,0223 mas[1]
Абсолютная звёздная величина (V) 1,48
Спектральные характеристики
Спектральный класс Am[5]
Показатель цвета
 • B−V 0,1
 • U−B 0,1
Коды в каталогах

GSC 03837-00396, HD 108346, SAO 28388, HIP 60712, 2MASS J12263262+5509339, BD+55 1533, GC 16958, HIC 60712, PPM 33563, TD1 16275, TYC 3837-396-1, uvby98 100108346, YZ 55 7170, Gaia DR1 1574113932119904512, Gaia DR2 1574113936415101568, 72 UMa, Gaia DR3 1574113936415101568, TIC 233164000, AG+55 837 и Renson 31450

Информация в базах данных
SIMBAD * 72 UMa
Логотип Викиданных Информация в Викиданных ?

72 Большой Медведицы (лат. 72 Ursae Majoris), HD 108346 — одиночная звезда в созвездии Большой Медведицы на расстоянии приблизительно 417 световых лет (около 128 парсеков) от Солнца. Видимая звёздная величина звезды — +7,06m[2].

Характеристики

72 Большой Медведицы — белая Am-звезда спектрального класса Am[5]. Радиус — около 2,49 солнечных, светимость — около 21,59 солнечных. Эффективная температура — около 8434 К.

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 (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 1984. — Vol. 57. — P. 357–359. — 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. ↑ Grenier S., M.-O. Baylac, Rolland L., Burnage R., Arenou F., Briot D., Delmas F., Duflot M., Genty V., Gómez A. E. et al. Radial velocities. Measurements of 2800 B2-F5 stars for HIPPARCOS (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 1999. — Vol. 137, Iss. 3. — P. 451—456. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/AAS:1999489
  5. ↑ 1 2 Cowley A. P., Cowley R. C. Slit spectra of some peculiar and metallic-line A stars (англ.) // Publications of the Astronomical Society of the Pacific — University of Chicago Press, 1965. — Vol. 77. — P. 184–188. — ISSN 0004-6280; 1538-3873 — doi:10.1086/128190

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