Copyright:Luigi Morrone
中文翻譯:
在浩瀚的宇宙中，有一片美麗的星雲，它的形狀就像一個光亮的圓環，這片星雲位於高高的天鵝座（Cygnus）中。這是一幅利用特殊濾光片拍攝的圖片，顯示了被氫和氧氣發出的光芒環繞的亮邊。在這片星際雲彩中，有許多發光的弧形，它們是由一顆名叫WR 134的特別恆星所產生的風所捲起的材料。有研究顯示，這顆WR 134恆星距離我們約有6,000光年遠，而整幅圖像的寬度則超過100光年。這顆巨大的WR 134恆星生活得非常快，因為它每秒都在消耗大量的能源，最後會以壯觀的超新星（supernova）結束它的生命。這些強大的恆星發出的氣體和超新星爆炸，會為宇宙中的物質注入重元素，這些元素會成為未來新恆星的材料。
原文:
This cosmic snapshot covers a field of view over twice as wide as the full Moon within the boundaries of the high-flying constellation Cygnus. Made using astronomical narrowband filters, the image highlights the bright edge of a ring-like nebula traced by the glow of ionized hydrogen and oxygen gas. Embedded in the region’s expanse of interstellar clouds, the complex, glowing arcs are sections of shells of material swept up by the wind from Wolf-Rayet star WR 134, the brightest star near image center. Distance estimates put WR 134 about 6,000 light-years away, making this telescopic frame over 100 light-years across. Shedding their outer envelopes in powerful stellar winds, massive Wolf-Rayet stars have burned through their nuclear fuel at a prodigious rate and end their final phase of massive star evolution in a spectacular supernova. Their stellar winds and final supernova explosion enrich the interstellar material with heavy elements to be incorporated in future generations of stars.
來源:NASA每日圖片
