77 Геркулеса

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77 Геркулеса
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 17ч 26м 44,24с[1]
Склонение +48° 15′ 36,22″[1]
Расстояние 123,044 ± 0,7131 пк[1]
Видимая звёздная величина (V) 5,83 ± 0,009[2]
Созвездие Геркулес
Астрометрия
Лучевая скорость (Rv) −9 ± 3,2 км/с[3]
Собственное движение
 • прямое восхождение −0,338 ± 0,06 mas/год[1]
 • склонение −4,407 ± 0,051 mas/год[1]
Параллакс (π) 8,1272 ± 0,0471 mas[1]
Абсолютная звёздная величина (V) 0,53
Спектральные характеристики
Спектральный класс A4V[4]
Показатель цвета
 • B−V 0,13
 • U−B 0,12
Физические характеристики
Радиус 3,54 R☉
Температура 8222 К[5]
Вращение 149 км/с[6][7]
Коды в каталогах

x Her, HD 158414, FK5 650, GCRV 10101, GSC 03513-00482, HIC 85379, HIP 85379, HR 6509, 2MASS J17264423+4815363, N30 3895, PLX 3969, PLX 3969.00, PPM 56194, ROT 2455, SAO 46723, TD1 20496, uvby98 100158414, AG+48 1320, BD+48 2517, WEB 14417, Gaia DR2 1365497616683816064, 77 Her, GC 23658, TIC 188774365, Gaia DR3 1365497616683816064 и TYC 3513-482-1

Информация в базах данных
SIMBAD * x Her
Логотип Викиданных Информация в Викиданных ?

77 Геркулеса (лат. 77 Herculis), x Геркулеса (лат. x Herculis), HD 158414 — одиночная звезда в созвездии Геркулеса на расстоянии приблизительно 408 световых лет (около 125 парсек) от Солнца. Видимая звёздная величина звезды — +5,85m[8]. Возраст звезды определён как около 621 млн лет[9].

Характеристики

77 Геркулеса — белая звезда спектрального класса A4V[10][11][12], или A2[13][14]. Масса — около 2,21 солнечных, радиус — около 4,454 солнечных, светимость — около 62,158 солнечных[5]. Эффективная температура — около 8276 K[15].

Планетная система

В 2019 году учёными, анализирующими данные проектов HIPPARCOS и Gaia, у звезды обнаружена планета[16].

Планета
 Масса
(MJ) 		Радиус
(RJ) 		Период обращения
(суток) 		Большая полуось
орбиты (а.е.) 		Эксцентриситет
орбиты
HD 158414 b 12,59 - - 1,948 -

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  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. ↑ 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
  5. ↑ 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
  6. ↑ 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
  7. ↑ 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
  8. ↑ Swihart S. J., Garcia E. V., Stassun K. G., Mutterspaugh M. W., Elias N., van Belle G. A catalog of calibrator stars for next-generation optical interferometers (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2016. — Vol. 153, Iss. 1. — P. 16—24. — 9 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/153/1/16 — arXiv:1610.04600
  9. ↑ Gullikson K., Kraus A., Dodson-Robinson S. The close companion mass-ratio distribution of intermediate-mass 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. 2. — 13 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/0004-6256/152/2/40 — arXiv:1604.06456
  10. ↑ Cruzalèbes P., Petrov R. G., Robbe-Dubois S., Varga J., Burtscher L., Allouche F., Berio P., Hofmann, K. -H., Hron J., Jaffe W. et al. A catalogue of stellar diameters and fluxes for mid-infrared interferometry (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2019. — Vol. 490, Iss. 3. — P. 3158—3176. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STZ2803 — arXiv:1910.00542
  11. ↑ Gullikson K., Kraus A., Dodson-Robinson S., Jaffe D., Lee J., Mace G. N., MacQueen P., Park S., Riddle A. Direct spectral detection: an efficient method to detect and characterize binary systems (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2015. — Vol. 151, Iss. 1. — 16 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/0004-6256/151/1/3 — arXiv:1511.05148
  12. ↑ Eggleton P. P., Tokovinin A. A. A Catalog of Multiplicity among Bright Stellar Systems (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2008. — Vol. 389, Iss. 2. — P. 869–879. — 11 p. — ISSN 0035-8711; 1365-2966 — doi:10.1111/J.1365-2966.2008.13596.X — arXiv:0806.2878
  13. ↑ Cannon A. J., Pickering E. C. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925) (англ.) // Annals of the Astronomical Observatory of Harvard College — 1918. — Vol. 91-100.
  14. ↑ Roeser S., Bastian U. PPM (Positions and Proper Motions) North Star Catalogue (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 1988. — Vol. 74. — P. 449. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  15. ↑ Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  16. ↑ Kervella P., Arenou F., Mignard F., Thévenin F. Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2019. — Vol. 623. — P. 72–72. — 23 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201834371 — arXiv:1811.08902

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