So Mishurov and astronomer Irina Acharova, also of the Southern Federal University, ran computer simulations that modeled a cluster of stars orbiting the galaxy's center.

因此，米什洛夫和同样来自南联邦大学的天文学家易瑞娜·阿卡洛娃，用电脑制作了恒星们围绕银河系中心运行的模拟场景。

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If the center of NGC 4258 were a star cluster, the stars would be so closely spaced that collisions between individual stars would have long ago torn the cluster apart.

如果 NGC 4258 的中心是一个星团，恒星之间的距离会非常近，以至于在很久以前单个恒星之间的碰撞就会把星团撕裂。

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Partly obscured by foreground dust, the nebula itself surrounds NGC 1893, a young galactic cluster of stars that energizes the glowing gas.

这片星云本身环绕着部分被前景上的星尘所掩盖了的NGC 1893，这是一个年轻的恒星星系群，它给发光的气体提供了能量。

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While the message began its voyage to the cosmos--a 24, 000 year trip to M-13, a cluster of stars in the constellation Hercules, to be exact--visiting dignitaries listened over a loudspeaker while each bit played as a short, high-pitched tone.

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But there is reason, according to recent studies, to believe the sun was once part of a very large cluster of stars.

FORBES: Searching for the Siblings of the Sun

The Hubble Space Telescope recently spied a cluster of young blue stars surrounding a rare mid-weight black hole that suggests the black hole was once at the center of a dwarf galaxy.

MSN: Rare Black Hole Survives Galaxy's Destruction