MM Гидры

MM Гидры
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 9ч 14м 14,03с[1]
Склонение −6° 47′ 44,77″[1]
Расстояние 360,4513 ± 30,5064 пк[2]
Созвездие Гидра
Астрометрия
Собственное движение
 • прямое восхождение −12,448 ± 0,157 mas/год[1]
 • склонение −10,007 ± 0,129 mas/год[1]
Параллакс (π) 2,9476 ± 0,1713 mas[1]
Коды в каталогах
GSC 04891-00637, [DWS97] Hya 1, Gaia DR2 5745881603063095680, MM Hya, Gaia DR3 5745881603063095680, AAVSO 0909-06, PG 0911-066, USNO-B1.0 0832-00229420, WISEA J091414.01-064744.7 и WISE J091414.03-064744.9
Информация в базах данных
SIMBAD PG 0911-066
Логотип Викиданных Информация в Викиданных ?

MM Гидры (лат. MM Hydrae) — карликовая новая[3], двойная катаклизмическая переменная звезда типа U Близнецов (UG) или катаклизмическая переменная звезда типа SU Большой Медведицы (UGSU)[4][5][6] в созвездии Гидры на расстоянии приблизительно 1176 световых лет (около 360 парсек) от Солнца. Звёздная величина диапазона B звезды — от +18,7m до +14,1m[7]. Орбитальный период — около 0,05759 суток (1,3822 часа)[8].

Открыта Ричардом Фредериком Грином и др. в 1982 году[9][10]*[11]*.

Характеристики

Первый компонент — аккрецирующий белый карлик спектрального класса pec(UG).

Примечания

  1. ↑ 1 2 3 4 5 Gaia Early Data Release 3 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2020.
  2. ↑ Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  3. ↑ Uemura M., Arai A., Kato T., Maehara H., Nogami D., Kubota K., Moritani Y., Imada A., Omodaka T., Oizumi S. et al. Dwarf novae in the shortest orbital period regime. I A new short superhump period dwarf nova, OT J055717+683226 (англ.) // Publications of the Astronomical Society of Japan — OUP, Astronomical Society of Japan, 2010. — Vol. 62, Iss. 1. — P. 187–199. — ISSN 0004-6264; 2053-051X — doi:10.1093/PASJ/62.1.187 — arXiv:0912.4321
  4. ↑ Vogt N., Puebla E. C., Contreras-Quijada A. Determination of the superoutburst cycle lengths of 206 SU UMa-type dwarf novae (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2021. — Vol. 502, Iss. 4. — P. 5668—5678. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STAA3711 — arXiv:2101.02756
  5. ↑ Abril J., Schmidtobreick L., Ederoclite A., López-Sanjuan C. Disentangling cataclysmic variables in Gaia's HR diagram (англ.) // Monthly Notices of the Royal Astronomical Society: Letters — OUP, 2020. — Vol. 492, Iss. 1. — P. L40—L44. — ISSN 1745-3933 — doi:10.1093/MNRASL/SLZ181 — arXiv:1912.01531
  6. ↑ Nakata C., Ohshima T., Kato T., Masi G., de Miguel E., Ulowetz J., Littlefield C., Goff W. N., Krajci T., Maehara H. et al. WZ Sge-Type Dwarf Novae with Multiple Rebrightenings: MASTER OT J211258.65+242145.4 and MASTER OT J203749.39+552210.3 (англ.) // Publications of the Astronomical Society of Japan — OUP, Astronomical Society of Japan, 2013. — Vol. 65, Iss. 6. — 16 p. — ISSN 0004-6264; 2053-051X — doi:10.1093/PASJ/65.6.117 — arXiv:1307.6712
  7. ↑ MM Hya, database entry, Combined General Catalog of Variable Stars (GCVS5.1, 2017 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Архивная копия от 6 августа 2012 на Wayback Machine Accessed online 2024-01-22.
  8. ↑ Otulakowska-Hypka M., Olech A., Patterson J. Statistical analysis of properties of dwarf novae outbursts (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2016. — Vol. 460, Iss. 3. — P. 2526–2541. — 16 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STW1120 — arXiv:1605.02937
  9. ↑ Kato T., Hambsch F., Monard B., Vanmunster T., Maeda Y., Miller I., Itoh H., Kiyota S., Isogai K., Kimura M. et al. Survey of period variations of superhumps in SU UMa-type dwarf novae. VIII. The eighth year (2015-2016) (англ.) // Publications of the Astronomical Society of Japan — OUP, Astronomical Society of Japan, 2016. — Vol. 68, Iss. 4. — 64 p. — ISSN 0004-6264; 2053-051X — doi:10.1093/PASJ/PSW064 — arXiv:1605.06221
  10. ↑ Kato T., Hambsch F., Dubovsky P. A., Kudzej I., Monard B., Miller I., Itoh H., Kiyota S., Masumoto K., Fukushima D. et al. Survey of period variations of superhumps in SU UMa-type dwarf novae. VII. The seventh year (2014-2015) (англ.) // Publications of the Astronomical Society of Japan — OUP, Astronomical Society of Japan, 2015. — Vol. 67, Iss. 6. — 110 p. — ISSN 0004-6264; 2053-051X — doi:10.1093/PASJ/PSV072 — arXiv:1507.05610
  11. ↑ Kato T., Hambsch F., Maehara H., Masi G., Nocentini F., Dubovsky P. A., Kudzej I., Imamura K., Ogi M., Tanabe K. et al. Survey of period variations of superhumps in SU UMa-type dwarf novae. V. The fifth year (2012-2013) (англ.) // Publications of the Astronomical Society of Japan — OUP, Astronomical Society of Japan, 2014. — Vol. 66, Iss. 2. — ISSN 0004-6264; 2053-051X — doi:10.1093/PASJ/PSU014 — arXiv:1310.7069

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