Переменная туманность Хаббла

Переменная туманность Хаббла
эмиссионная туманность
отражающая туманность
История исследования
Открыватель Уильям Гершель
Дата открытия 26 декабря 1783
Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 06h 39m 09,5s
Склонение +08° 44' 40"
Видимая звёздная величина (V) 9
Видимые размеры 3,0' × 1,0'
Созвездие Единорог
Другие обозначения
NGC 2261, LBN 920
Логотип Викиданных Информация в Викиданных ?
Логотип Викисклада Медиафайлы на Викискладе

Переме́нная тума́нность Ха́ббла (NGC 2261, другое обозначение — LBN 920) — эмиссионная и отражательная туманность в созвездии Единорог.

Этот объект входит в число перечисленных в оригинальной редакции «Нового общего каталога».

Переменная туманность

Эта туманность является единственной переменной туманностью, которую можно наблюдать в небольшой телескоп. Её вид может меняться в течение недели. Как и все переменные туманности — NGC 2261 является отражательной туманностью, то есть отражает свет родительской звезды. Считается, что материал, вращающийся вокруг звезды, отбрасывает тень на туманность, вызывая видимые изменения[1].

Примечания

  1. Dr Jason Lisle. The Stargazer's Guide to the Night Sky. — New Leaf Publishing Group, 2012-03-01. — С. 202. — 240 с. — ISBN 9781614581949.

Литература

Ссылки

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