Proper motions in M 67

Relative proper motions and membership probabilities of 1046 stars in the open cluster M67 are are determined from PDS measurements of 9 plate pairs taken with the double...

本研究基于采用双（double）拍摄的9组底片对的PDS测量结果，测定了疏散星团（open cluster）M67内1046颗恒星的相对自行与成员概率。