来自DECam的玫瑰星云
(原标题: The Rosette Nebula from DECam)
2025-07-16
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玫瑰星云如果换一个名字，看起来会这么甜美吗？NGC 2237平淡无奇的新总目录名称似乎并没有削弱这个绚丽的发射星云的外观，这是由智利国家科学基金会Cerro Tololo美洲天文台的Blanco 4米望远镜上的暗能量相机（DECam）拍摄的。星云内部有一个由明亮的年轻恒星组成的疏散星团，命名为NGC 2244。这些恒星大约在400万年前由星云物质形成，它们的恒星风正在清理星云中心的一个洞，这个洞被一层尘埃和热气体隔离。来自热星团的紫外线使周围的星云发光。玫瑰星云横跨约100光年，位于约5000光年之外，可以用小型望远镜看到独角兽星座（麒麟座）。开放科学：浏览天体物理学源代码库中的3700多个代码
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Would the Rosette Nebula by any other name look as sweet? The bland New General Catalog designation of NGC 2237 doesn't appear to diminish the appearance of this flowery emission nebula, as captured by the Dark Energy Camera (DECam) on the Blanco 4-meter telescope at the NSF's Cerro Tololo Inter-American Observatory in Chile. Inside the nebula lies an open cluster of bright young stars designated NGC 2244. These stars formed about four million years ago from the nebular material and their stellar winds are clearing a hole in the nebula's center, insulated by a layer of dust and hot gas. Ultraviolet light from the hot cluster stars causes the surrounding nebula to glow. The Rosette Nebula spans about 100 light-years across, lies about 5000 light-years away, and can be seen with a small telescope towards the constellation of the Unicorn (Monoceros). Open Science: Browse 3,700+ codes in the Astrophysics Source Code Library