23 Гончих Псов

23 Гончих Псов
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 13ч 20м 18,95с[1]
Склонение +40° 09′ 1,97″[1]
Расстояние 153,001 ± 1,3367 пк[1]
Видимая звёздная величина (V) 5,6 ± 0,02[2]
Созвездие Гончие Псы
Астрометрия
Лучевая скорость (Rv) −20,82 ± 0,14 км/с[3][4]
Собственное движение
 • прямое восхождение −58,211 ± 0,034 mas/год[1]
 • склонение −3,696 ± 0,033 mas/год[1]
Параллакс (π) 6,5359 ± 0,057 mas[1]
Спектральные характеристики
Спектральный класс K2II-III[2]
Показатель цвета
 • B−V 1,22
Физические характеристики
Металличность −0,35[2]
Информация в базах данных
SIMBAD * 23 CVn
Логотип Викиданных Информация в Викиданных ?

23 Гончих Псов (лат. 23 Canum Venaticorum), HD 116010 — одиночная звезда в созвездии Гончих Псов на расстоянии приблизительно 499 световых лет (около 153 парсек) от Солнца. Визуальная звёздная величина звезды — +5,6m[5].

Характеристики

23 Гончих Псов — оранжевый гигант спектрального класса K0[6][7], или K1III[8][9][10], или K2II-III[11]. Масса — около 2,675 солнечной, радиус — около 27,928 солнечного, светимость — около 203,904 солнечной. Эффективная температура — около 4383 K[3].

Планетная система

В 2019 году учёными, анализирующими данные проектов Hipparcos и Gaia, у звезды обнаружена планета HIP 65072 b[5].

Планета
Масса
(MJ)
Радиус
(RJ)
Период обращения
(суток)
Большая полуось
орбиты
(а.е.)
Эксцентриситет
орбиты
HIP 65072 b 9,16 - - 2,076 -

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 3 Yoss K. M., Griffin R. F. Radial Velocities and DDO, BV Photometry of Henry Draper G5-M Stars Near the North Galactic Pole (англ.) // Journal of Astrophysics and AstronomyAssoc for Development through Science and Education, Romania, Springer Science+Business Media, 1997. — Vol. 18, Iss. 2-3. — P. 161–227. — ISSN 0250-6335; 0973-7758doi:10.1007/BF02714877
  3. 1 2 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  4. Famaey B., Jorissen A., Luri X., Mayor M., Udry S., Turon C., Dejonghe H. Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data (англ.) // Astronomy and Astrophysics / T. ForveilleEDP Sciences, 2005. — Vol. 430, Iss. 1. — P. 165–186. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361:20041272arXiv:astro-ph/0409579
  5. 1 2 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. ForveilleEDP Sciences, 2019. — Vol. 623. — P. 72–72. — 23 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361/201834371arXiv:1811.08902
  6. 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.
  7. Roeser S., Bastian U. PPM (Positions and Proper Motions) North Star Catalogue (англ.) // Astronomy and Astrophysics / T. ForveilleEDP Sciences, 1988. — Vol. 74. — P. 449. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  8. Eggleton P. P., Tokovinin A. A. A Catalog of Multiplicity among Bright Stellar Systems (англ.) // Monthly Notices of the Royal Astronomical Society / D. FlowerOUP, 2008. — Vol. 389, Iss. 2. — P. 869–879. — 11 p. — ISSN 0035-8711; 1365-2966doi:10.1111/J.1365-2966.2008.13596.XarXiv:0806.2878
  9. Richichi A., Percheron I., Khristoforova M. CHARM2: An updated Catalog of High Angular Resolution Measurements (англ.) // Astronomy and Astrophysics / T. ForveilleEDP Sciences, 2005. — Vol. 431, Iss. 2. — P. 773—777. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361:20042039
  10. Mérand A., Bordé P., Coudé du Foresto, V. A catalog of bright calibrator stars for 200-m baseline near-infrared stellar interferometry (англ.) // Astronomy and Astrophysics / T. ForveilleEDP Sciences, 2005. — Vol. 433, Iss. 3. — P. 1155–1162. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361:20041323arXiv:astro-ph/0412251
  11. 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. FlowerOUP, 2019. — Vol. 490, Iss. 3. — P. 3158—3176. — ISSN 0035-8711; 1365-2966doi:10.1093/MNRAS/STZ2803arXiv:1910.00542

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