1) a few scattered stars
几点疏星
2) a sparse beard
疏疏的几根胡子
4) open cluster
疏散星团
1.
The mass segregation effects of open clusters,including spatial mass segregation and velocity mass segregation,are of great importance for studies of formation and evolution of clusters.
对疏散星团质量分层的有关问题做了简要的评述,包括空间质量分层和速度质量分层的表现形式和探测途径,质量分层形成机制的研究现状。
2.
Using the stellar proper motions reduced from the observational data of photographic plates taken with the 40 cm double astrograph of Shanghai Astronomical Observatory, the distribution parameters and membership probabilities of stars in the region of the open cluster NGC6530 are determined on the basis of the maximum likelihood principle and given in tabular form.
利用上海天文台40厘米折射望远镜照相观测资料所得出的恒星自行,按最大似然原理确定了疏散星团NGC6530天区内恒星的成员概率。
3.
4magin the region of the open cluster NGC6530 are reduced by a central overlapping techniqu.
本文选用由中科院上海天文台佘山工作站的40厘米双筒折射望远镜所拍摄的两期6 张照相底片,对疏散星团NGC6530 中心周围60 ′×60′范围天区内364颗恒星进行了研究。
5) open clusters
疏散星团
1.
The significance in studying the stellar evolution and observing the open clusters and clouds near the Gould s belt is expressed.
简述已有几个天体测量标准天区的大小、星数以及恒星位置和自行的精度;给出LAMOST天体测量标准天区选择的原则;介绍研究疏散星团和古德带附近星团观测的意义;列出13个LAMOST 天体测量标准天区J2000。
2.
more reasonable method of membership determination for open clusters is applied to the typical old Galactic cluster M67 in the present paper.
本文利用合理的成员判定方法对典型年老疏散星团Ｍ６７进行了成员判定，直接得到了该团存在空间和速度空间质量分层效应的结论。
6) only a few solitary stars twinkling in the sky
疏星寥落
补充资料：疏疏
1.亦作"疎疎"。 2.犹楚楚。服装鲜明整齐貌。 3.稀疏貌。 4.朦胧貌。
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