These astrolabes consist of a lacquered, two-sided board with astronomical sightlines. Along with divination for Da Liu Ren, the boards were commonly used to chart the motion of Taiyi through the nine palaces. The markings are virtually unchanged from the shi to the first magnetic compasses.
These astrolabes comprise a lacquered, two-sided board featuring astronomical sightlines. Alongside fortune-telling for Da Liu Ren, the boards were frequently employed to track the movement of Taiyi through the nine palaces. The markings remain largely unaltered from the shi to the first magnetic compasses.