美国宇航局科学
(原标题: NASA Science)
2026-10-30
浏览次数: 523
怪异的形状似乎萦绕在这片尘埃漫天的天空中，飘过夜晚的仙王座。当然，这些形状是在暗淡的星光反射下可见的宇宙尘埃云。它们远离你的邻居，潜伏在离我们1200光年远的仙王座耀斑分子云复合体的银河系平面上方。vdB 141或Sh2-136的直径超过2光年，比大多数其他幽灵星云都要亮，它也被称为幽灵星云。它位于星空视野的右下方。在幽灵星云内部，有红色的迹象表明，在恒星形成的早期阶段，密集的核心正在坍塌。伴随着星际尘埃反射NGC 7023中炙热的年轻恒星发出的蓝光的怪异色调，虹膜星云在中间偏左的黑暗中脱颖而出。在广阔的望远镜框架中，这些肥沃的星际尘埃区几乎延伸了六个满月穿过天空。明天的照片：在一个幽灵般的星球上的夜晚
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Spooky shapes seem to haunt this dusty expanse, drifting through the night in the royal constellation Cepheus. Of course, the shapes are cosmic dust clouds visible in dimly reflected starlight. Far from your own neighborhood, they lurk above the plane of the Milky Way at the edge of the Cepheus Flare molecular cloud complex some 1,200 light-years away. Over 2 light-years across and brighter than most of the other ghostly apparitions, vdB 141 or Sh2-136 is also known as the Ghost Nebula. It lies at lower right in the starry field of view. Inside the Ghost Nebula are reddish telltale signs of dense cores collapsing in the early stages of star formation. With the eerie hue of interstellar dust reflecting bluish light from hot young stars of NGC 7023, the Iris Nebula stands out against the dark just left of center. In the broad telescopic frame, these fertile interstellar dust fields stretch almost six full moons across the sky.Tomorrow's picture: night on a spooky planet