If many such chains were created in a differentially rotating galaxy, the distribution of stars would resemble the observed distribution in a spiralgalaxy.
如果许多这样的链是在一个不同的旋转星系中产生的，那么恒星的分布将类似于在螺旋星系中观察到的分布。
2
It appears as a spiralgalaxy, which may be barred.
它看起来是一个旋涡星系，但可能是一个棒旋星系。
3
On the right, surrounded by blue spiral arms, is spiralgalaxy M81.