摘要
本文利用最大似然原理求解移动星团问题，同时确定了昂星团的平均距离和运动学参数及其相应的弥散度·归算结果得到昂星团距离为d=135．6±0．7pc，相应弥散度。σd=7.7±08pc；昂星团平均空间速度为V=25.9±0．1km／s，相应弥散度σv=0．6±0．1km／s，以及昴星团会聚点坐标（A，D）＝（6h47m24s±2m00s-47°．4±0°.3.）。
A new approach for the simultaneous determination of the distance and kinematic parameters as well as their dispersions in a moving cluster is applied to the Pleiades cluster. We have obtained that the distance of the cluster is d = 135.56±0.72 pc with the dispersion σd=7.66±0.80 pc, its space velocity V=25.94±0.13 kin /s with the dispersion σd,=0.58±0.09 km /s, and the coordinates of the convergent point are (A, D) =(101° 95±0°. 47, -41°36 ± 0°. 29).
出处
《天文学报》
CSCD
北大核心
1997年第2期113-119,共7页
Acta Astronomica Sinica
