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。
a star cluster in the constellation Taurus.
金牛星座中的一个星团。
Meijer transform
梅耶变换 M梅西叶星团星云符号
A typical globular cluster has about 1 million stars.
一个典型的球状星团包含1百万恒星。
The star cluster of the Pleiades is located at28 degrees Taurus.
昂宿星团的星群位于金牛座28度。
The brightest star in the Pleiades.
昴（宿）星团中最亮的那颗星
A Revision on Lithium Abundance Dispersin in Pleiades Stars
重新审查昴星团成员星锂丰度的弥散
Observation and Study on over Contact Binaries in the Galactic Clusters;
银河星团中过相接双星的观测与研究
Study on Binary Stellar Populations of Globular Clusters in M31
M31中球状星团的双星族合成研究
Smaller groups of stars called globular clusters often surround spiral galaxies.
称作球状星团的小型恒星团体经常环绕在旋涡星系周围。
An open star cluster in the constellation Taurus, consisting of several hundred stars, of which six are visible to the naked eye.
昴星团金牛星座中的疏散星团，由几百颗恒星组成，其中六颗星用肉眼可看到
Shara's research interests include stellar collisions, novae and supernovae, and the populations of stars that inhabit star clusters and galaxies.
夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。
Normal matter in galaxy clusters is mostly in the form of hot gas and stars.
星系群中的常态物质大概是由热气团和星团所组成的。
The remaining stars, having lost energy, concentrate closer to the cluster center.
剩馀的恒星在损失能量后，将朝星团中心集结。
Today, astronomers espouse the theory that comets spawn the swarms.
如今，天文学家们支持彗星产生了流星团的说法。
The delegation arrived in Beijing on Wednesday.
代表团星期三到达北京。
Galactic nebulas are masses of diffuse material within our galaxy.
银河星云是我们星系中的一团团弥散物。
Dynamics of the Nearby Rich Cluster of Galaxies for the Member Galaxies of Abell 2199;
邻近富星系团Abell 2199成员星系动力学
The Luminosity Function for the Member Galaxies and the Dynamics of the Clusters;
星系团成员星系光度函数及其动力学