Copyright:Tommy Lease
中文翻譯:
在遙遠的宇宙中，有一個神奇的地方叫做NGC 6914，這裡充滿了五顏六色的星星、塵埃和閃閃發光的氣體。這個美麗的地方距離地球有6,000光年，位於北方的天鵝座裡。你可以想像這個宇宙的畫布上，有一些紅色的氫氣雲和藍色的反射雲，像彩色的畫筆一樣，繪出了一幅美麗的天體圖畫。當大熱的年輕恆星發出強烈的紫外線時，周圍的氫氣會變得發光，讓整個地方像燃燒的火焰一樣紅紅的。這些恆星也發出藍色的光，這樣的光被塵埃雲反射出來，讓我們的宇宙看起來更加壯觀。在這幅宇宙的畫作中，整個視野跨越了約100光年的距離，真令人驚嘆啊！
原文:
A study in contrasts, this colorful cosmic skyscape features stars, dust, and glowing gas in the vicinity of NGC 6914. The interstellar complex of nebulae lies some 6,000 light-years away, toward the high-flying northern constellation Cygnus and the plane of our Milky Way Galaxy. Obscuring interstellar dust clouds appear in silhouette while reddish hydrogen emission nebulae, along with the dusty blue reflection nebulae, fill the cosmic canvas. Ultraviolet radiation from the massive, hot, young stars of the extensive Cygnus OB2 association ionize the region’s atomic hydrogen gas, producing the characteristic red glow as protons and electrons recombine. Embedded Cygnus OB2 stars also provide the blue starlight strongly reflected by the dust clouds. The over one degree wide telescopic field of view spans about 100 light-years at the estimated distance of NGC 6914.
來源:NASA每日圖片
