46 open clusters GaiaDR2 HR diagrams
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Gaia Data Release 2 provides high-precision astrometry and three-band photometry for about 1.3 billion sources over the full sky. The precision, accuracy, and homogeneity of...
盖亚数据发布2（Gaia Data Release 2）为全天空范围内约13亿个天体源提供了高精度天体测量与三波段测光数据。其精度、准确度及均一性……
