《宋史·志·卷三》
星明亮而微小，国家安定；向南移动，就干旱；向北，发大水。
明而微，国安；移向南，则旱；向北，大水。
When a star is bright and small, the country will be stable; if it moves south, there will be drought; if it moves north, there will be a flood.