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原文:
Clouds of glowing gas mingle with dust lanes in the Trifid Nebula, a star forming region toward the constellation of the Archer (Sagittarius). In the center, the three prominent dust lanes that give the Trifid its name all come together. Mountains of opaque dust appear on the right, while other dark filaments of dust are visible threaded throughout the nebula. A single massive star visible near the center causes much of the Trifid’s glow. The Trifid, also known as M20, is only about 300,000 years old, making it among the youngest emission nebulae known. The nebula lies about 9,000 light years away and the part pictured here spans about 10 light years. The above image is a composite with luminance taken from an image by the 8.2-m ground-based Subaru Telescope, detail provided by the 2.4-m orbiting Hubble Space Telescope, color data provided by Martin Pugh and image assembly and processing provided by Robert Gendler. Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
在弓箭座（Sagittarius）方向的三裂星雲（Trifid Nebula）中，發光的氣體雲與塵埃帶交織在一起。中央的三條明顯塵埃帶成為三裂星雲名字的來源。右邊出現了不透明的塵埃山，而其他黑暗的塵埃絲線則在星雲中隨處可見。位於中心附近的單顆巨大恆星是三裂星雲發光的主要來源。這個星雲，也被稱為 M20，年僅約 30 萬年，是已知最年輕的發射星雲之一。三裂星雲距離地球約 9,000 光年，圖中所顯示的部分跨越約 10 光年。上述圖像是由 8.2 米的地面 Subaru 望遠鏡拍攝的亮度數據，細節由 2.4 米的哈勃太空望遠鏡提供，顏色數據則由 Martin Pugh 提供，而圖像的組合與處理則由 Robert Gendler 完成。
#三裂星雲 #TrifidNebula #M20 #星雲 #宇宙 #哈勃望遠鏡 #天文學 #發射星雲 #光年 #星際氣體 #太空探索
來源:NASA每日圖片
