TY Гончих Псов

TY Гончих Псов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 12ч 54м 21,52с[1]
Склонение +32° 14′ 33,56″[1]
Расстояние 3,95 кпк[3], 3325,5737 ± 264,3206 пк[1] и 2995,2202 пк[4]
Видимая звёздная величина (V) 13,6[2]
Созвездие Гончие Псы
Астрометрия
Лучевая скорость (Rv) 74 ± 20 км/с[2]
Собственное движение
 • прямое восхождение −21,84 ± 0,033 mas/год[1] и −24 ± 2 mas/год[2]
 • склонение −6,409 ± 0,028 mas/год[1] и −3 ± 0 mas/год[2]
Параллакс (π) 0,3007 ± 0,0239 mas[1] и 0,275 ± 0,0205 mas[4]
Спектральные характеристики
Переменность RR Лиры с асимметричной кривой блеска[вд][5][6][…]
Коды в каталогах

[SHM2017] J193.58962+32.24262, NSVS 7649369, Case A-F 160, SV* SVS 1249, TY CVn, 2MASS J12542152+3214334, ROTSE1 J125421.57+321433.3, [DCD2013] CSS J125421.5+321433, Gaia DR2 1465883234457827968, ATO J193.5895+32.2426, TIC 139118731, ZTF J125421.49+321433.5, Gaia DR3 1465883234457827968 и WISEA J125421.50+321433.5

Информация в базах данных
SIMBAD V* TY CVn
Логотип Викиданных Информация в Викиданных ?

TY Гончих Псов (лат. TY Canum Venaticorum) — одиночная переменная звезда в созвездии Гончих Псов на расстоянии приблизительно 9769 световых лет (около 2995 парсек) от Солнца. Звёздная величина диапазона CV звезды — от +13,93m до +12,96m[7].

Открыта Николаем Ефимовичем Курочкиным в 1959 году[8]*[9].

Характеристики

TY Гончих Псов — жёлто-белая пульсирующая переменная звезда типа RR Лиры (RRAB)[10][11][12] спектрального класса F. Радиус — около 4,73 солнечного, светимость — около 27,992 солнечной[1]. Эффективная температура — около 6138 K[4].

Примечания

  1. ↑ 1 2 3 4 5 6 7 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ 1 2 3 4 Kinman T. D., Cacciari C., Bragaglia A., Spagna A. Kinematic structure in the Galactic halo at the North Galactic Pole: RR Lyrae and blue horizontal branch stars show different kinematics (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2007. — Vol. 375. — P. 1381–1398. — ISSN 0035-8711; 1365-2966 — doi:10.1111/J.1365-2966.2006.11394.X — arXiv:astro-ph/0612416
  3. ↑ Drake A. J., Catelan M., Djorgovski S. G., Torrealba G., Graham M. J., Belokurov V., Koposov S. E., Mahabal A., Prieto J. L., Donalek C. et al. Probing the outer galactic halo with RR Lyrae from the Catalina surveys (англ.) // The Astrophysical Journal / E. Vishniac — IOP Publishing, 2013. — Vol. 763, Iss. 1. — P. 32. — ISSN 0004-637X; 1538-4357 — doi:10.1088/0004-637X/763/1/32 — arXiv:1211.2866
  4. ↑ 1 2 3 Gaia Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2022.
  5. ↑ Sesar B., Hernitschek N., Mitrović S., Ivezić Ž., Cohen J. G., Rix H., Bernard E. J., Grebel E. K., Martin N. F., Schlafly E. F. et al. Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2017. — Vol. 153, Iss. 5. — P. 204—219. — 16 p. — ISSN 0004-6256; 1538-3881 — doi:10.3847/1538-3881/AA661B — arXiv:1611.08596
  6. ↑ Akerlof C., Amrose S., Balsano R., Bloch J., Casperson D., Fletcher S., Gisler G., Hills J., Kehoe R., Lee B. et al. ROTSE all-sky surveys for variable stars. I. Test fields (англ.) // The Astronomical Journal / J. G. III, E. Vishniac — New York City: IOP Publishing, AAS, University of Chicago Press, AIP, 2000. — Vol. 119, Iss. 4. — P. 1901–1913. — ISSN 0004-6256; 1538-3881 — doi:10.1086/301321 — arXiv:astro-ph/0001388
  7. ↑ TY CVn, database entry, Combined General Catalog of Variable Stars (GCVS5.1, 2017 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Accessed online 2024-05-29.
  8. ↑ Jones L. V. The periods of TY and TZ Canes Venatici // (unknown type) — 1989. — Т. 18, вып. 1. — С. 39–42. — ISSN 0271-9053; 2380-3606
  9. ↑ Kurochkin N. E. New variable stars in SA 57 // Переменные звёзды — 1959. — Т. 12. — С. 409–417. — ISSN 2221-0474
  10. ↑ Dékány I., Grebel E. K. Photometric Metallicity Prediction of Fundamental-mode RR Lyrae Stars in the Gaia Optical and K s Infrared Wave Bands by Deep Learning (англ.) // The Astrophysical Journal: Supplement Series — AAS, 2022. — Vol. 261, Iss. 2. — 14 p. — ISSN 0067-0049; 1538-4365 — doi:10.3847/1538-4365/AC74BA
  11. ↑ Mullen J. P., Marengo M., Martínez-Vázquez C. E., Neeley J. R., Bono G., Dall'Ora M., Chaboyer B., Thévenin F., Braga V. F., Crestani J. et al. Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves. I. Period-Fourier-Metallicity Relations for Fundamental-mode RR Lyrae (англ.) // The Astrophysical Journal / E. Vishniac — IOP Publishing, 2021. — Vol. 912, Iss. 2. — 18 p. — ISSN 0004-637X; 1538-4357 — doi:10.3847/1538-4357/ABEFD4 — arXiv:2103.09372
  12. ↑ Muhie T. D., Dambis A. K., Berdnikov L. N., Kniazev A. Y., Grebel E. K. Kinematics and multiband period-luminosity-metallicity relation of RR Lyrae stars via statistical parallax (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2021. — Vol. 502, Iss. 3. — P. 4074—4092. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STAB219 — arXiv:2101.03899

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