没有恒星的泻湖星云
(原标题: The Lagoon Nebula without Stars)
2022-08-08
浏览次数: 15
发光的星际气体山脊和黑暗的尘埃云栖息在动荡的泻湖星云的宇宙深处。这个明亮的恒星形成区也被称为M8，距离我们大约5000光年。但它仍然是人马座望远镜之旅中一个受欢迎的站点，朝向我们银河系的中心。这张令人惊叹的泻湖全景图横跨近100光年，主要是电离氢原子与剥离电子重新结合的红色辐射。在照片的正中间，明亮、紧凑的沙漏形状是由一颗巨大的年轻恒星发出的高能辐射和极端恒星风电离和雕刻而成的。事实上，虽然疏散星团NGC 6530的许多明亮的恒星被数字技术从这张特色图像中删除了，但它在星云中漂移，数百万年前刚刚在泻湖形成。
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Ridges of glowing interstellar gas and dark dust clouds inhabit the turbulent, cosmic depths of the Lagoon Nebula. Also known as M8, the bright star forming region is about 5,000 light-years distant. But it still makes for a popular stop on telescopic tours of the constellation Sagittarius, toward the center of our Milky Way Galaxy. Dominated by the telltale red emission of ionized hydrogen atoms recombining with stripped electrons, this stunning, deep view of the Lagoon is nearly 100 light-years across. Right of center, the bright, compact, hourglass shape is gas ionized and sculpted by energetic radiation and extreme stellar winds from a massive young star. In fact, although digitally removed from the featured image, the many bright stars of open cluster NGC 6530 drift within the nebula, just formed in the Lagoon several million years ago.
© Sameer Dhar