Credit & Copyright: Steve Cannistra (StarryWonders)
Explanation:
Based on wide field photographs, American astronomer Edward Emerson Barnard cataloged the dark markings of the sky in the early 20th century. Barnard's markings are dark nebulae, interstellar clouds of obscuring gas and dust. Their shapes are visible in cosmic silhouette because they lie in the foreground along the line-of-sight to rich star fields and stellar nurseries near the plane of our Galaxy. This deep telescopic image from the early 21st century captures a tantalizing array of Barnard's dusty nebulae toward the constellation Taurus and the Taurus molecular cloud some 400 light-years away. Included in the nearly 1 degree wide field of view is Barnard 7 (the 7th object in the catalog) at the upper right, next to a dusty bluish reflection nebula. Young variable star RY Tauri is emerging from a yellowish cocoon of dust near top center. Typically a light-year or so across, many of Barnard's dark nebulae are themselves likely sites of future star formation.
基于宽视野照片,美国天文学家爱德华.爱默生.巴纳德早在20世纪就编纂了暗天体目录。巴纳德编纂的是暗星云、暗淡星际气体云和尘埃的目录。它们的外形是宇宙亮背景中的剪影,因为它们都位于银道面附近富含恒星的亮背景前方,它们(一般的)也是恒星托儿所。本深空图像是21世纪早期拍摄的,展示了金牛座方向的巴纳德尘埃云的诱人图像,这个金牛座分子云离我们大约400光年。本图右上大约占据1度的天区的是巴纳德7#星云(在巴纳德暗星云表中排第7#),紧挨着一个布满尘埃的浅蓝色反射星云。图中正上方,年轻的金牛座变星——金牛座RY从泛黄的尘埃茧中露出头来。许多巴纳德暗星云将来都是恒星形成区。
——没办法,我自己翻译吧。不过貌似写文章的人搞错时间了吧,21世纪早期不就是现在吗? by gohomeman1