Copyright:
J. De Winter,
C. Humbert,
C. Robert &
V. Sabet;
Text: Ogetay Kayali
(MTU)
中文翻譯:
你可以在這幅圖片中找到許多著名的天空物件！18世紀的天文學家Charles Messier僅列出了兩個：明亮的Lagoon Nebula (M8) 在底部，和色彩繽紛的Trifid Nebula (M20) 在右上方。左邊那個像貓爪的星雲是NGC 6559，它比其他兩個星雲都要暗得多。甚至更難找到的是左邊那條細細的藍色絲線，來自超新星殘骸(SNR G007.5-01.7)。它們的光芒來自微量的發光氧原子，這麼微弱的光線經過17小時的曝光時間，才用藍色的光線顯示出來。畫面中還有兩個星團：位於Trifid上方的開放星團M21，以及左下方的球狀星團NGC 6544，這些都是星星誕生和死亡的舞台！
原文:
Can you spot famous celestial objects in this image? 18th-century astronomer Charles Messier cataloged only two of them: the bright Lagoon Nebula (M8) at the bottom, and the colorful Trifid Nebula (M20) at the upper right. The one on the left that resembles a cat’s paw is NGC 6559, and it is much fainter than the other two. Even harder to spot are the thin blue filaments on the left, from supernova remnant (SNR G007.5-01.7). Their glow comes from small amounts of glowing oxygen atoms that are so faint that it took over 17 hours of exposure with just one blue color to bring up. Framing this scene of stellar birth and death are two star clusters: the open cluster M21 just above Trifid, and the globular cluster NGC 6544 at lower left.
來源:NASA每日圖片
