韦伯和哈勃望远镜拍摄的草帽星系
(原标题: The Sombrero Galaxy from Webb and Hubble)
2024-11-26
浏览次数: 17
这个漂浮的环有一个星系那么大。事实上，它是一个星系——或者至少是一个星系的一部分：上镜的草帽星系是附近室女座星系团中最大的星系之一。在可见光（下图）下遮住了草帽星系中部的暗尘带实际上在红外光（上图）下发出明亮的光。这张特色图片显示了假蓝色的红外光，是由太空中的詹姆斯·韦伯太空望远镜（JWST）最近拍摄的，并于昨天发布，上面是美国宇航局哈勃太空望远镜在可见光下拍摄的档案图像。草帽星系，也被称为M104，跨度约5万光年，距离我们2800万光年。在室女座方向用小型望远镜可以看到M104。
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This floating ring is the size of a galaxy. In fact, it is a galaxy -- or at least part of one: the photogenic Sombrero Galaxy is one of the largest galaxies in the nearby Virgo Cluster of Galaxies. The dark band of dust that obscures the mid-section of the Sombrero Galaxy in visible light (bottom panel) actually glows brightly in infrared light (top panel). The featured image shows the infrared glow in false blue, recorded recently by the space-based James Webb Space Telescope (JWST) and released yesterday, pictured above an archival image taken by NASA's Hubble Space Telescope in visible light. The Sombrero Galaxy, also known as M104, spans about 50,000 light years and lies 28 million light years away. M104 can be seen with a small telescope in the direction of the constellation Virgo.