dense star cluster 稠密星团
super-star cluster 超级星团
membership of star cluster 星团成员
open star cluster 疏散星团
Star-cluster 繁星花
Quintuplet Star Cluster 五胞胎星团
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。
The star cluster is embedded in a nebula, which spans some 110 light-years.
该星团嵌在一个约110光年大的星云内。
Can you find, in the above image, a comet, a spiral galaxy, an open star cluster, and a supernova remnant?
在上面图中，你能找到：一彗星，一旋涡星系，一疏散星团和一超新星遗迹吗？
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