Why are the 12 constellations carved on the Tianjin Millennium clock arranged in this way?

The clock plate is surrounded by 12 constellation relief, and the pictures are all created according to the most original story. Aries is placed at the top of 12, because sheep represents auspiciousness in China; Put Libra at 6 o'clock at the bottom, because scales represent fairness. All these reflect the idea of integrating foreign culture and local culture in arrangement.