LMI and LDT observation of Berkeley 50 members

We observed the Galactic open cluster Berkeley-50 in order to determine its stellar content, distance, and age. We obtained UBV photometry of 1145 stars in a 12.3x12.3' field,...本研究对银河疏散星团（Galactic open cluster）伯克利-50（Berkeley-50）开展观测，旨在测定其恒星组成、距离与年龄。我们在12.3′×12.3′的视场内获取了1145颗恒星的UBV测光（UBV photometry）数据，……