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大黑洞 相当68亿个太阳


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这一巨型黑洞位于M87星系,距离地球约5000万光年。科学家们借助位于夏威夷经过特殊改装的望远镜进行观测并发现这一黑洞质量比人们原先的估计高两倍,使其成为已知质量最大的黑洞,其质量高达68亿倍太阳质量,甚至其视界直径也相当于海王星轨道的4倍。这一超大质量黑洞有可能是过去某一阶段由数百个较小的黑洞合并而成的。相比之下,银河中央的黑洞质量要比它小1000倍。

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