韦伯与哈勃影像: 草帽星系

韦伯与哈勃影像: 草帽星系

The Sombrero Galaxy from Webb and Hubble
Image Credit: NASA, ESA, CSA, STScI, Hubble Heritage Project (STScI, AURA)

Explanation: 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.

Tomorrow’s picture: meteor races comet

韦伯与哈勃影像: 草帽星系
影像提供: NASA, ESA, CSA, STScI, Hubble Heritage Project (STScI, AURA)

说明: 这个漂浮的环状结构大如星系。事实上，它就是很上相的草帽星系，或者至少是草帽星系的一部分，而草帽星系则是邻近的室女座星系团里最大的星系之一。在可见光清楚可见、环绕在草帽星系腰部的黝黑尘埃带（下图），于红外光波段显得格外的明亮（上图）。在这张主题影像里，以泛蓝假色呈现的红外辉光，是刚在昨天发布的韦伯太空望远镜影像，而上图则是哈勃太空望远镜的库存 可见光影像。大小约为5万光年、离我们约2千8百万光年远的草帽星系，亦名为M104。位于北天室女座方向的M104，用小望远镜即可见。

明日的图片: meteor races comet

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