梅西耶104
(原标题: Messier 104)
2026-05-29
浏览次数: 4408
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。草帽星系也被称为NGC 4594，可以在整个光谱中看到，它的中心是一个超大质量黑洞。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。这张众所周知的星系的全景图经过处理，揭示了M104延伸的光晕，以及一个微弱的潮汐恒星流。它是由塞罗·托洛洛美洲天文台布兰科4米望远镜上的暗能量相机（DECam）拍摄的。
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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. 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. This broad view of the well-known galaxy was processed to reveal M104's extended halo, as well as a faint tidal stellar stream. It was captured by the Dark Energy Camera (DECam) on the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory.