摘要
本文绘出了疏散星团M11中心25’×25’天区内872颗恒星的相对自行、自行测定误差以及团中心距r≤25’范围内785颗恒星的成员概率，并对有关问题作了简单的讨论。
Relative proper motion, their corresponding errors and membership probabilities of 872 starsin the M11 region with radial distance less than 25' from the cluster center are listed, whichare determined from the ten plate pairs with epoch differences of 16-70 years taken with the4Ocm double astrograph of Shanghai Observatory. Some problems concerned are also brieflydiscussed.
出处
《中国科学院上海天文台年刊》
1996年第17期205-210,共6页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
