ARI's Cone Search Service for Gaia DR2

This service provides the data for the Gaia DR2 (a full-sky catalog of high-precision positions down to about 20 mag) catalog.本服务提供盖亚DR2（Gaia DR2）星表的相关数据，该星表为覆盖全天的高精度位置测量星表，极限星等约为20 mag。