Extragalactic radio sources optical positions

Based on 28 individual catalogues, in which the positions of optical counterparts of extragalactic radio sources are listed, we compiled a combined catalogue by means of a...本数据集依托28份独立星表（individual catalogues）构建而成，各星表均收录了河外射电源（extragalactic radio sources）的光学对应体（optical counterparts）的位置信息；我们通过某一方式编制了一份综合星表。