A check mark in the left column indicates that a catalog is currently active; the absence of a check mark indicates that the catalog is not currently active.
A check mark in the left column indicates that a catalog is currently active; the absence of a check mark indicates that the catalog is not currently active.
左侧复选标记的选中表示这个星表当前是活动的；复选标记的空缺意味着这个星表当前不是活动的。