Light curves of M9 variables

Time-series photographic photometry for the variable stars in M9. Cone search capability for table J/other/PDDO/1.511/stars (List of studied stars)

本数据集收录了M9（梅西耶9）内变星（variable stars）的时间序列照相测光（Time-series photographic photometry）数据，其所关联的数据表J/other/PDDO/1.511/stars（研究恒星列表）支持圆锥搜索（Cone search）功能。