1) proto-cluster
原星团
2) proto-cluster of galaxies
原星系团
3) proto-globular cluster
原球状星团
4) star cluster
星团
1.
The phenomenon of mass segregation of a star cluster means a preferential concentra- tion of high mass stars towards the cluster center and a preferential allocation of lower mass stars towards the periphery of the cluster,which seems to occur in star systems with widely distinct physical properties.
老年球状星团和年轻的超星团是两类不同性质的致密星团,观测表明它们都表现出某种程度的质量分层效应。
5) nebula and star cluster
星云星团
6) noncluster star
非星团星
补充资料：原星系
见星系的起源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条