Astronomy Picture of the Day——NGC 3572附近的恒星、尘埃和气体
Stars, Dust, and Gas near NGC 3572
Image Credit & Copyright: AndrewCampbell
Explanation: Star formation can becolorful. This chromatic cosmic portrait features glowing gas and dark dustnear some recently formed stars of NGC 3572, a little-studied star cluster nearthe Carina Nebula. Stars from NGC 3572 are visible near the bottom of theimage, while the expansive gas cloud above is likely what remains of theirformation nebula. The image's striking hues were created by featuring specificcolors emitted by hydrogen, oxygen, and sulfur, and blending them with imagesrecorded through broadband filters in red, green, and blue. This nebula nearNGC 3572 spans about 100 light years and lies about 9,000 light years awaytoward the southern constellation of the Ship's Keel (Carina). Within a fewmillion years the pictured gas will likely disperse, while gravitationalencounters will likely disperse the cluster stars over about a billion years.
NGC 3572附近的恒星、尘埃和气体
恒星的形成可以是绚丽多彩的。这幅彩色的影像呈现了NGC 3572星团最新形成的恒星附近的炽热气体和暗尘，NGC 3572是船底星云附近一个很少被人们研究的星团。NGC 3572内的恒星在影像底部附近可见，而上方扩散的气体云很可能是它们形成星云的遗迹。这幅影像的鲜艳色泽是由氢、氧和硫发出的特殊颜色辉光与通过宽带滤波器所呈现出的红、绿和蓝色光芒混合而成。这个靠近NGC 3572的星云跨度约100光年，位于南天的船底座方向，距离地球约9000光年。在百万年内，影像中的气体可能会消散，而引力碰撞可能会在大约10亿年的时间里驱散星团中的恒星。
参考文献：
https://apod.nasa.gov/apod/image/1905/NGC3572_Campbell_1824.jpg
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