《宋史·志·卷四》
《干象新书》认为王良西边一颗星属于壁宿，束边四颗星属于奎宿，外屏西边一颗星属于壁宿，束边六颗星属于奎宿，与《步天歌》各有不合。
《乾象新书》以王良西一星属壁，东四星属奎，外屏西一星属壁，东六星属奎，与《步天歌》各有不合。
"Dry Elephant New Book" believes that a star in the west of Wang Liang belongs to Bi Xiu, four stars in the east belong to Kui Xiu, a star in the west of Wai Ping belongs to Bi Xiu, six stars in the east belong to Kui Xiu, which is different from "Step Tiange".