M81
M81-
M81 is a " grand design " spiral galaxy , which means its elegant arms curl all the way down into its center .
编辑是一个“宏伟设计”的螺旋星系，这意味着它幽雅武器袅袅一路下跌到其中心。
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In fact , the process otherwise appears to be just like the accretion process feeding M81 's stellar mass black holes , even though the central black hole is millions of times more massive .
事实上，这个过程看上去就像给M81内恒星量级的黑洞吸积过程，尽管中央黑洞质量要大上数百万倍。