排序方式： 共有1条查询结果，搜索用时 0 毫秒
1
1.
Mass of open duster NGC 7789 in the Galaxy is determined by three methods： the photometric method based on mass-luminosity relations of stars in the duster Mpho= 7712.5M⊙; the dynamical method based on virial theorem Mvir=6996.1M⊙; and the tidal radius method based on the interaction between the cluster and the Galaxy Mtid= 5152.5M⊙. The mean mass of this cluster is estimated to be Mc =6620.4 4- 762.5M⊙. 相似文献
1