Copyright:
原文:
Cosmic dust clouds ripple across this infrared portrait of our Milky Way’s satellite galaxy, the Large Magellanic Cloud. In fact, the remarkable composite image from the Herschel Space Observatory and the Spitzer Space Telescope show that dust clouds fill this neighboring dwarf galaxy, much like dust along the plane of the Milky Way itself. The dust temperatures tend to trace star forming activity. Spitzer data in blue hues indicate warm dust heated by young stars. Herschel’s instruments contributed the image data shown in red and green, revealing dust emission from cooler and intermediate regions where star formation is just beginning or has stopped. Dominated by dust emission, the Large Magellanic Cloud’s infrared appearance is different from views in optical images. But this galaxy’s well-known Tarantula Nebula still stands out, easily seen here as the brightest region to the left of center. A mere 160,000 light-years distant, the Large Cloud of Magellan is about 30,000 light-years across.
中文翻譯:
🌌✨這幅來自赫歇爾太空觀測站和斯皮策太空望遠鏡的紅外線肖像中，宇宙塵雲在我們銀河系的衛星星系——大麥哲倫雲中波動。這個驚人的合成影像顯示，塵雲佈滿了這個鄰近的小型星系，就像銀河系的平面上布滿了塵埃一樣。塵埃的溫度通常與恆星形成活動有關。斯皮策的數據以藍色調顯示出由年輕恆星加熱的溫暖塵埃，而赫歇爾的儀器則在紅色和綠色中顯示出來自較冷和中等區域的塵埃輻射，那裡的恆星形成剛開始或已經停止。這幅紅外線影像以塵埃輻射為主，讓大麥哲倫雲的外觀與光學影像截然不同。但這個星系中著名的塔蘭圖拉星雲仍然十分突出，在中央左側輕易可見，成為最明亮的區域。距離地球僅160,000光年，大麥哲倫雲約有30,000光年寬。
#大麥哲倫雲 #TarantulaNebula #銀河系 #宇宙探索 #紅外線天文 #星際塵埃 #恆星形成 #赫歇爾太空觀測站 #斯皮策太空望遠鏡 #天文學 #宇宙的奧秘
來源:NASA每日圖片
