2022年08月08日:移除恆星后的礁湖星云-（The Lagoon Nebula without Stars）--原图下载
Image Credit & Copyright: Sameer Dhar
说明: 明亮的星际云气脊和黝黑的尘埃云，交织在礁湖星云狂乱的内部深处。这个又称为M8的明亮恒星形成区，离我们约有5,000光年远。纵然很远，然而以望远镜巡礼我们银河系中心的人马座之时，它仍是一个热门的目标。在这幅呈现宽约100光年的礁湖星云中心区之深空影像里，电离化氢原子和逸失的电子复合时所发出的特徵性红光辐射，是最主要的色泽。此外，在一颗大质量年轻恒星的高能辐射和强烈恒星风之电离化和雕塑下，形成了影像中右方的沙漏状云气。 在这幅主题影像里，数百万年前刚形成于星云内的疏散星团NGC 6530之亮星，已运用数位技术加以移除。
原文：
Image Credit & Copyright: Sameer Dhar
Explanation: Ridges of glowing interstellar gas anddark dust clouds inhabit theturbulent, cosmic depths of the Lagoon Nebula.Also known as M8, the bright star forming region is about5,000 light-years distant.But it still makes for a popular stop ontelescopic tours ofthe constellation Sagittarius, toward the center of our Milky Way Galaxy.Dominated by the telltale red emission of ionized hydrogen atomsrecombining with stripped electrons,this stunning, deep view of the Lagoon is nearly100 light-years across. Right of center, the bright, compact, hourglassshape is gas ionized and sculpted by energetic radiationand extreme stellar winds from amassive young star.In fact, although digitally removed from the featured image,the many bright stars of open cluster NGC 6530drift within the nebula,just formed inthe Lagoon several million years ago.
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