NGC 491A

NGC 491A
Галактика
История исследования
Открыватель Джон Гершель
Дата открытия 25 сентября 1834
Обозначения NGC 491A, ESO 352-46, MCG -6-4-8, AM 0117-340, PGC 4809, PGC 4799
Наблюдательные данные
(Эпоха J2000.0)
Созвездие Скульптор
Прямое восхождение 01ч 20м 5,00с
Склонение −33° 54′ 02″
Видимые размеры 1,9' × 0,8'
Видимая зв. величина 13,7
Фотографическая зв. величина 14,3
Характеристики
Тип SBd
Лучевая скорость 3586 км/с[1]
z +0,011952 ± 0,000083
Расстояние 42,07 Мпк[1]
Угловое положение 102°
Пов. яркость 14,0
Информация в базах данных
SIMBAD ESO 352-46
Логотип Викиданных Информация в Викиданных ?

NGC 491A (другие обозначения — ESO 352-46, MCG −6-4-8, AM 0117-340, PGC 4809, PGC 4799) — спиральная галактика с перемычкой (SBd) в созвездии Скульптор.

Этот объект не входит в число перечисленных в оригинальной редакции «Нового общего каталога» и был добавлен позднее.

Галактика низкой поверхностной яркости в инфракрасном диапазоне. Чаще всего такие галактики небольшого размера, однако NGC 491 достаточно крупная[2][3].

Примечания

  1. ↑ 1 2 Tully R. B., Courtois H. M., Sorce J. G. Cosmicflows-3 (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. — P. 50. — ISSN 0004-6256; 1538-3881 — doi:10.3847/0004-6256/152/2/50 — arXiv:1605.01765
  2. ↑ D. Monnier Ragaigne, W. van Driel, S. E. Schneider, C. Balkowski, T. H. Jarrett. A search for Low Surface Brightness galaxies in the near-infrared - III. Nançay line observations (англ.) // Astronomy & Astrophysics. — 2003-09-01. — Vol. 408, iss. 2. — P. 465–477. — ISSN 1432-0746 0004-6361, 1432-0746. — doi:10.1051/0004-6361:20030714. Архивировано 15 апреля 2021 года.
  3. ↑ Astronomy & Astrophysics. www.aanda.org. Дата обращения: 5 января 2021. Архивировано 8 января 2021 года.

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