什么是不描述是一个巨大的球状晕无形的暗物质主导的大规模的银河，以及运动明星远离中心。
What is not depicted is a huge spherical halo of invisible dark matter that dominates the mass of the Milky way as well as the motions of stars away from the center.
吉布·哈特手中有地面观测的其他15个球状星团中恒星运动的数据资料，其中大部分的核心没有M 15那么稠密。
Gebhardt has data in hand from a ground-based survey of star motions in about 15 other Milky Way clusters, most of them easier to study than the crowded heart of M15.
吉布·哈特手中有地面观测的其他15个球状星团中恒星运动的数据资料，其中大部分的核心没有M 15那么稠密。
Gebhardt has data in hand from a ground-based survey of star motions in about 15 other Milky Way clusters, most of them easier to study than the crowded heart of M15.
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