ngc55：一个星云星系
(原标题: NGC 55: A Galaxy of Nebulas)
2026-01-26
浏览次数: 1599
你能看到其他星系中的星云吗？是的，有些星云足够明亮——如果你知道怎么看的话。氢和氧组成的云以非常特殊的颜色发出光，通过分离它们，天文学家和天体摄影师可以揭示那些原本太暗而无法注意到的结构。这张深度曝光50小时的照片突出了ngc55星系上发光的氢（红色）和氧（蓝色），几乎是侧面的。ngc55也被称为珍珠链星系，经常被比作我们银河系的卫星星系大麦哲伦星云（LMC），尽管ngc55距离我们要远得多，大约650万光年。由此产生的图像揭示了星系尘埃盘内部（有时在尘埃盘上方）零星的发射星云，提供了对遥远恒星形成区域的详细观察。拼图星系：今日天文谜题
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Can you see nebulas in other galaxies? Yes, some nebulas shine brightly enough -- if you know how to look. Clouds of hydrogen and oxygen emit light at very specific colors, and by isolating them, astronomers and astrophotographers can reveal structures that would otherwise be too faint to notice. This deep, 50-hour exposure highlights glowing hydrogen (red) and oxygen (blue) across galaxy NGC 55, viewed nearly edge-on. Also known as the String of Pearls Galaxy, NGC 55 is often compared to our Milky Way's satellite galaxy the Large Magellanic Cloud (LMC), although NGC 55 lies much farther away at about 6.5 million light-years. The resulting image uncovers a sprinkling of emission nebulas within and sometimes above the galaxy's dusty disk, offering a detailed look at distant star-forming regions. Jigsaw Galaxy: Astronomy Puzzle of the Day
© Wolfgang Promper; Text: Ogetay Kayali (MTU)