77 Водолея

77 Водолея
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 22ч 54м 45,47с[1]
Склонение −16° 16′ 19,05″[1]
Расстояние 41,43 ± 0,1052 пк[1]
Видимая звёздная величина (V) 5,56[2]
Созвездие Водолей
Астрометрия
Лучевая скорость (Rv) −34,59 ± 0,16 км/с[3]
Собственное движение
 • прямое восхождение −222,327 ± 0,072 mas/год[1]
 • склонение −88,641 ± 0,045 mas/год[1]
Параллакс (π) 24,1373 ± 0,0613 mas[1]
Абсолютная звёздная величина (V) 2,46
Спектральные характеристики
Спектральный класс K2.5III[4]
Показатель цвета
 • B−V 1,14
Физические характеристики
Масса 1,14 M☉
Возраст 7,61 млрд. лет
Температура 4688 К[5]
Металличность 0,16[5]
Вращение 2,91 ± 0,28 км/с[6]
Коды в каталогах

HIP 113148, HR 8711, 2MASS J22544548-1616187, SAO 165376, HD 216640, CSV 102216, GC 31944, GCRV 14382, HIC 113148, LTT 9263, N30 5041, NLTT 55225, NSV 14358, PLX 5554, PLX 5554.00, PPM 240923, TYC 6387-1383-1, UBV 19631, YZ 106 8501, WEB 20139, Gaia DR2 2404410451368190592, 77 Aqr, TIC 111750740, Gaia DR3 2404410451368518144 и UBV M 26699

Информация в базах данных
SIMBAD * 77 Aqr
Логотип Викиданных Информация в Викиданных ?

77 Водолея (лат. 77 Aquarii, HD 216640) — одиночная звезда в созвездии Водолея на расстоянии приблизительно 135 световых лет (около 41 парсека) от Солнца. Видимая звёздная величина звезды — +5,658m[7]. Возраст звезды оценивается как около 7,61 млрд лет[5].

Характеристики

77 Водолея — оранжевый гигант спектрального класса K2,5III[4] или K1III[8]. Масса — около 1,14 солнечной, радиус — около 5,79 солнечных, светимость — около 13,347 солнечных. Эффективная температура — около 4688 К[5].

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  2. ↑ SIMBAD Astronomical Database
  3. ↑ Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  4. ↑ 1 2 Keenan P. C., McNeil R. C. The Perkins catalog of revised MK types for the cooler stars (англ.) // The Astrophysical Journal: Supplement Series — AAS, 1989. — Vol. 71. — P. 245–266. — ISSN 0067-0049; 1538-4365 — doi:10.1086/191373
  5. ↑ 1 2 3 4 Wittenmyer R. A., Liu F., Wang L., Casagrande L., Tinney C. G. The Pan-Pacific Planet Search. V. Fundamental parameters for 164 evolved stars (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2016. — Vol. 152, Iss. 1. — 15 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/0004-6256/152/1/19 — arXiv:1605.00323
  6. ↑ Hojjatpanah S., Figueira P., Santos N. C., Adibekyan V., Sousa S. G., Delgado-Mena E., Alibert Y., Cristiani S., González Hernández, J. I., Di Marcantonio P. et al. Catalog for the ESPRESSO blind radial velocity exoplanet survey (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2019. — Vol. 629. — 27 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201834729 — arXiv:1908.04627
  7. ↑ 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
  8. ↑ Houk N., Swift C. Michigan catalogue of two-dimensional spectral types for the HD Stars (англ.) — 1999. — Vol. 5.

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