BV photometry of Bochum 7 members

We plan to identify the members of the Bochum 7 association by performing simultaneous astrometric and spectrophotometric analyses, and estimate its distance and evolutionary...我们计划通过同步开展天体测量（astrometric）与分光光度（spectrophotometric）分析，识别波鸿7星协（Bochum 7）的成员，并估算其距离与演化……