梅西耶104
(原标题: Messier 104)
2022-04-23
浏览次数: 30
梅西耶104是一个华丽的旋涡星系，它以其接近边缘的轮廓而闻名，其特征是一个模糊的尘埃带的宽环。这片由宇宙尘埃组成的狭长地带映衬着一大片中央恒星的轮廓，使星系看起来像一顶宽边的帽子，这让人联想到一个更受欢迎的绰号——草帽星系。这张著名星系的清晰图像是由哈勃太空望远镜拍摄的10个多小时的图像数据拍摄而成的，经过处理后，M104明亮的中央凸起的耀眼光芒中往往会丢失一些模糊的细节。草帽星系也被称为NGC 4594，可以在整个光谱中看到，它是中心超大质量黑洞的宿主。M104直径约5万光年，距离我们2800万光年，是室女座星系团南部边缘最大的星系之一。尽管如此，在这个视野中，尖锐的前景恒星仍然位于我们自己的银河系内。
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A gorgeous spiral galaxy, Messier 104 is famous for its nearly edge-on profile featuring a broad ring of obscuring dust lanes. Seen in silhouette against an extensive central bulge of stars, the swath of cosmic dust lends a broad brimmed hat-like appearance to the galaxy suggesting a more popular moniker, the Sombrero Galaxy. This sharp view of the well-known galaxy was made from over 10 hours of Hubble Space Telescope image data, processed to bring out faint details often lost in the overwhelming glare of M104's bright central bulge. Also known as NGC 4594, the Sombrero galaxy can be seen across the spectrum, and is host to a central supermassive black hole. About 50,000 light-years across and 28 million light-years away, M104 is one of the largest galaxies at the southern edge of the Virgo Galaxy Cluster. Still, the spiky foreground stars in this field of view lie well within our own Milky Way.