IC 405

Туманность пламенеющей звезды
отражательная туманность
Место объекта в созвездии
История исследования
Открыватель Шеберле, Джон Мартин[2]
Дата открытия 21 марта 1892[2]
Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 05ч 17м 24.00с[1]
Склонение +34° 23′ 00.0″[1]
Расстояние 1500 св. лет (416 пк)
Видимая звёздная величина (V) +6.0?
Видимые размеры 37′ × 10′
Созвездие Возничий
Физические характеристики
Радиус 2,5 св. года (0,7 пк)
Другие обозначения
туманность пламенеющей звезды, IC 405, SH 2-229, C 31
Логотип Викиданных Информация в Викиданных ?
Логотип Викисклада Медиафайлы на Викискладе

IC 405 (также известная как Туманность пламенеющей звезды, SH 2-229, или Колдуэлл-31) — эмиссионная/отражательная туманность[3] в созвездии Возничего, окружающая голубоватую нерегулярную переменную звезду AE Возничего.

Звезда AE Возничего и Туманность пламенеющей звезды

Красный и пурпурный цвета туманности возникают вследствие разных процессов. Мощное излучение звезды AE Возничего буквально выталкивает электроны из окружающего газа. Когда протон вновь захватывает электрон, излучается свет красных длин волн. В пурпурной области происходит смешение этого красного излучения и голубого излучения звезды AE Возничего, отраженного окружающей звезду пылью. Две эти области называются, соответственно, эмиссионной туманностью и отражательной туманностью[4].

Туманность расположена вблизи рассеянного скопления с эмиссионной туманностью IC 410, рассеянных скоплений M38 и M36, и видимой невооруженным глазом звезды K-класса Йота Возничего (Хассалех).

Туманность занимает на небе площадь приблизительно 37,0' x 19,0', и находится на расстоянии около 1500 св. лет от Земли[1]. Считается, что собственное движение убегающей звезды может быть прослежено до области пояса Ориона, откуда она когда-то вылетела[1]. Физические размеры туманности составляют около 5 световых лет[3]. Туманность можно увидеть с помощью небольшого телескопа в направлении на созвездие Возничий[4].

Примечания

  1. 1 2 3 4 Darling, David Flaming Star Nebula (IC 405). The Internet Encyclopedia of Science. Архивировано 29 января 2013 года.
  2. 1 2 Seligman C. IC 405, the Flaming Star Nebula
  3. 1 2 IC 405: The Flaming Star Nebula (24 ноября 2003). Дата обращения: 11 октября 2016. Архивировано 8 июня 2008 года.
  4. 1 2 IC 405: туманность пламенеющей звезды. Астронет (24 ноября 2003). Дата обращения: 11 октября 2016. Архивировано из оригинала 11 октября 2016 года.

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