Copyright:Peter Bresseler;
Text:
Keighley Rockcliffe
(NASA
GSFC,
UMBC
CSST,
CRESST II)
中文翻譯:
在遙遠的夜空中，星星就像小朋友的夢想，閃閤著奇妙的光芒。今天，我們要來了解一個特別的星雲，它叫做Shapley 1。Shapley 1有著美麗的圓環形狀，就像一個小小的宇宙眼睛，讓人忍不住想要靠近它！這個星雲在南方的星座『Carpenter’s Square』裡，就像天上的寶石，悄悄照亮著暗暗的星空。
它的故事開始於一顆和我們太陽差不多大的星星，當它沒有了燃料，它會把外層的物質拋棄出去，形成了這個絢麗的環形雲。Shapley 1的亮光來自於那些被拋出的層次，裡面的氧氣讓這個星雲閃爍著獨特的光芒。
在星雲的中心是一顆特別的恆星，它其實是一對雙星，裡面有一顆白矮星，它是那顆恆星在失去外層後的殘留部分；而另外一顆星星則在圍繞著它們轉圈，這樣的一對星星，每2.9天就會互相繞圈一次！
看著Shapley 1就像在看太空的電影，讓我們理解到星星之間的關係以及它們如何影響星雲的形狀。快一起向宇宙出發，探索這些充滿奧秘的天體吧！
原文:
What’s looking back at you isn’t a cosmic eye, but Shapley 1, a beautifully symmetric planetary nebula. Shapley 1, also known as the Fine Ring Nebula or PLN 329+2.1, bejewels the southern sky constellation of the Carpenter’s Square (Norma). The nebula is the result of a star near the mass of our Sun running out of fuel and shedding its outer layers. Glowing oxygen from those expelled layers makes up the circular halo. The bright central point is actually a binary: a white dwarf, the remaining stellar core after the outer layers are expelled into space, and another star, orbiting each other every 2.9 days. Shapley 1’s annular shape is due to our top-down view of the system and provides insight into the influence of central stars on planetary nebula structures.
來源:NASA每日圖片
